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NF T 47-501 Metric O-Rings

NF T 47-501 Metric O-Rings

NFT 47-501 is issued by the Association Française de Normalisation (French Standards Institute). It is very similar to ISO 3601-1 in both the sizes included and the size reference. The size reference codes are designated with a letter corresponding to each of 5 cross section groups (A-E), 4 digits indicating ID (rounded to 0.1 mm), a 2nd letter indicating Precision Class and a 3rd letter indicating Visual (inspection) Class. The Precision Class is indicated by the letter A (for Aerospace applications) or G (for General Purpose applications). The visual classes are N (1.0 AQL) and S (.65 AQL).
For a complete listing of all metric o-ring sizes, visit our Metric O-Ring Cross Reference Table.

NF T 47-501 Size Chart

Global Part#ReferenceC/S (MM)I.D. (MM)C/S (Inch)I.D. (Inch)
1.80X001.8A00181.81.80.0710.071
1.80X002A00201.820.0710.079
1.80X002.24A00221.82.240.0710.088
1.80X002.5A00251.82.50.0710.098
1.80X002.8A00281.82.80.0710.11
1.80X003.15A00321.83.150.0710.124
1.80X003.55A00361.83.550.0710.14
1.80X003.75A00381.83.750.0710.148
1.80X004A00401.840.0710.157
1.80X004.5A00451.84.50.0710.177
1.80X004.75A00481.84.750.0710.187
1.80X004.87A00491.84.870.0710.192
1.80X005A00501.850.0710.197
1.80X005.15A00521.85.150.0710.203
1.80X005.3A00531.85.30.0710.209
1.80X005.6A00561.85.60.0710.22
1.80X006A00601.860.0710.236
1.80X006.3A00631.86.30.0710.248
1.80X006.7A00671.86.70.0710.264
1.80X006.9A00691.86.90.0710.272
1.80X007.1A00711.87.10.0710.28
1.80X007.5A00751.87.50.0710.295
1.80X008A00801.880.0710.315
1.80X008.5A00851.88.50.0710.335
1.80X008.75A00881.88.750.0710.344
1.80X009A00901.890.0710.354
1.80X009.5A00951.89.50.0710.374
1.80X010A01001.8100.0710.394
1.80X010.6A01061.810.60.0710.417
1.80X011.2A01121.811.20.0710.441
1.80X011.6A01161.811.60.0710.457
1.80X011.8A01181.811.80.0710.465
1.80X012.1A01211.812.10.0710.476
1.80X012.5A01251.812.50.0710.492
1.80X012.8A01281.812.80.0710.504
1.80X013.2A01321.813.20.0710.52
1.80X014A01401.8140.0710.551
1.80X014.5A01451.814.50.0710.571
1.80X015A01501.8150.0710.591
1.80X015.5A01551.815.50.0710.61
1.80X016A01601.8160.0710.63
1.80X017A01701.8170.0710.669
1.80X018A01801.8180.0710.709
1.80X019A01901.8190.0710.748
1.80X020A02001.8200.0710.787
1.80X020.6A02061.820.60.0710.811
1.80X021.2A02121.821.20.0710.835
1.80X022.4A02241.822.40.0710.882
1.80X023.6A02361.823.60.0710.929
1.80X024.3A02431.824.30.0710.957
1.80X025A02501.8250.0710.984
1.80X025.8A02581.825.80.0711.016
1.80X026.5A02651.826.50.0711.043
1.80X027.3A02731.827.30.0711.075
1.80X028A02801.8280.0711.102
1.80X030A03001.8300.0711.181
1.80X031.5A03151.831.50.0711.24
1.80X032.5A03251.832.50.0711.28
1.80X033.5A03351.833.50.0711.319
1.80X034.5A03451.834.50.0711.358
1.80X035.5A03551.835.50.0711.398
1.80X036.5A03651.836.50.0711.437
1.80X037.5A03751.837.50.0711.476
1.80X038.7A03871.838.70.0711.524
1.80X040A04001.8400.0711.575
1.80X041.2A04121.841.20.0711.622
1.80X042.5A04251.842.50.0711.673
1.80X043.7A04371.843.70.0711.72
1.80X045A04501.8450.0711.772
1.80X046.2A04621.846.20.0711.819
1.80X047.5A04751.847.50.0711.87
1.80X048.7A04871.848.70.0711.917
1.80X050A05001.8500.0711.969
2.65X009B00902.6590.1040.354
2.65X009.5B00952.659.50.1040.374
2.65X010B01002.65100.1040.394
2.65X010.6B01062.6510.60.1040.417
2.65X011.2B01122.6511.20.1040.441
2.65X011.6B01162.6511.60.1040.457
2.65X011.8B01182.6511.80.1040.465
2.65X012.1B01212.6512.10.1040.476
2.65X012.5B01252.6512.50.1040.492
2.65X012.8B01282.6512.80.1040.504
2.65X013.2B01322.6513.20.1040.52
2.65X014B01402.65140.1040.551
2.65X014.5B01452.6514.50.1040.571
2.65X015B01502.65150.1040.591
2.65X016B01602.65160.1040.63
2.65X017B01702.65170.1040.669
2.65X018B01802.65180.1040.709
2.65X019B01902.65190.1040.748
2.65X020B02002.65200.1040.787
2.65X020.6B02062.6520.60.1040.811
2.65X021.2B02122.6521.20.1040.835
2.65X022.4B02242.6522.40.1040.882
2.65X023.6B02362.6523.60.1040.929
2.65X024.3B02432.6524.30.1040.957
2.65X025B02502.65250.1040.984
2.65X025.8B02582.6525.80.1041.016
2.65X026.5B02652.6526.50.1041.043
2.65X027.3B02732.6527.30.1041.075
2.65X028B02802.65280.1041.102
2.65X030B03002.65300.1041.181
2.65X031.5B03152.6531.50.1041.24
2.65X032.5B03252.6532.50.1041.28
2.65X033.5B03352.6533.50.1041.319
2.65X034.5B03452.6534.50.1041.358
2.65X035.5B03552.6535.50.1041.398
2.65X036.5B03652.6536.50.1041.437
2.65X037.5B03752.6537.50.1041.476
2.65X038.7B03872.6538.70.1041.524
2.65X040B04002.65400.1041.575
2.65X041.2B04122.6541.20.1041.622
2.65X042.5B04252.6542.50.1041.673
2.65X043.7B04372.6543.70.1041.72
2.65X045B04502.65450.1041.772
2.65X046.2B04622.6546.20.1041.819
2.65X047.5B04752.6547.50.1041.87
2.65X048.7B04872.6548.70.1041.917
2.65X050B05002.65500.1041.969
2.65X051.5B05152.6551.50.1042.028
2.65X053B05302.65530.1042.087
2.65X054.5B05452.6554.50.1042.146
2.65X056B05602.65560.1042.205
2.65X058B05802.65580.1042.283
2.65X060B06002.65600.1042.362
2.65X061.5B06152.6561.50.1042.421
2.65X063B06302.65630.1042.48
2.65X065B06502.65650.1042.559
2.65X067B06702.65670.1042.638
2.65X069B06902.65690.1042.717
2.65X071B07102.65710.1042.795
2.65X073B07302.65730.1042.874
2.65X075B07502.65750.1042.953
2.65X077.5B07752.6577.50.1043.051
2.65X080B08002.65800.1043.15
2.65X082.5B08252.6582.50.1043.248
2.65X085B08502.65850.1043.346
2.65X087.5B08752.6587.50.1043.445
2.65X090B09002.65900.1043.543
2.65X092.5B09252.6592.50.1043.642
2.65X095B09502.65950.1043.74
2.65X097.5B09752.6597.50.1043.839
2.65X100B10002.651000.1043.937
3.55X014C01403.55140.140.551
3.55X014.5C01453.5514.50.140.571
3.55X015C01503.55150.140.591
3.55X015.5C01553.5515.50.140.61
3.55X016C01603.55160.140.63
3.55X017C01703.55170.140.669
3.55X018C01803.55180.140.709
3.55X019C01903.55190.140.748
3.55X040C04003.55400.141.575
3.55X041.2C04123.5541.20.141.622
3.55X042.5C04253.5542.50.141.673
3.55X043.7C04373.5543.70.141.72
3.55X045C04503.55450.141.772
3.55X046.2C04623.5546.20.141.819
3.55X047.5C04753.5547.50.141.87
3.55X048.7C04873.5548.70.141.917
3.55X060C06003.55600.142.362
3.55X061.5C06153.5561.50.142.421
3.55X063C06303.55630.142.48
3.55X065C06503.55650.142.559
3.55X067C06703.55670.142.638
3.55X069C06903.55690.142.717
3.55X071C07103.55710.142.795
3.55X073C07303.55730.142.874
3.55X075C07503.55750.142.953
3.55X077.5C07753.5577.50.143.051
3.55X080C08003.55800.143.15
3.55X082.5C08253.5582.50.143.248
3.55X085C08503.55850.143.346
3.55X087.5C08753.5587.50.143.445
3.55X090C09003.55900.143.543
3.55X092.5C09253.5592.50.143.642
3.55X095C09503.55950.143.74
3.55X097.5C09753.5597.50.143.839
3.55X100C10003.551000.143.937
3.55X103C10303.551030.144.055
3.55X106C10603.551060.144.173
3.55X109C10903.551090.144.291
3.55X112C11203.551120.144.409
3.55X115C11503.551150.144.528
3.55X118C11803.551180.144.646
3.55X122C12203.551220.144.803
3.55X125C12503.551250.144.921
3.55X128C12803.551280.145.039
3.55X132C13203.551320.145.197
3.55X136C13603.551360.145.354
3.55X140C14003.551400.145.512
3.55X145C14503.551450.145.709
3.55X150C15003.551500.145.906
3.55X155C15503.551550.146.102
3.55X160C16003.551600.146.299
3.55X165C16503.551650.146.496
3.55X170C17003.551700.146.693
3.55X175C17503.551750.146.89
3.55X180C18003.551800.147.087
3.55X185C18503.551850.147.283
3.55X190C19003.551900.147.48
3.55X195C19503.551950.147.677
3.55X200C20003.552000.147.874
3.55X020CO2003.55200.140.787
3.55X020.6CO2063.5520.60.140.811
3.55X021.2CO2123.5521.20.140.835
3.55X022.4CO2243.5522.40.140.882
3.55X023.6CO2363.5523.60.140.929
3.55X024.3CO2433.5524.30.140.957
3.55X025CO2503.55250.140.984
3.55X025.8CO2583.5525.80.141.016
3.55X026.5CO2653.5526.50.141.043
3.55X027.3CO2733.5527.30.141.075
3.55X028CO2803.55280.141.102
3.55X030CO3003.55300.141.181
3.55X031.5CO3153.5531.50.141.24
3.55X032.5CO3253.5532.50.141.28
3.55X033.5CO3353.5533.50.141.319
3.55X034.5CO3453.5534.50.141.358
3.55X035.5CO3553.5535.50.141.398
3.55X036.5CO3653.5536.50.141.437
3.55X037.5CO3753.5537.50.141.476
3.55X038.7CO3873.5538.70.141.524
3.55X050CO5003.55500.141.969
3.55X051.5CO5153.5551.50.142.028
3.55X053CO5303.55530.142.087
3.55X054.5CO5453.5554.50.142.146
3.55X056CO5603.55560.142.205
3.55X058CO5803.55580.142.283
5.30X037.5D03755.337.50.2091.476
5.30X038.7D03875.338.70.2091.524
5.30X040D04005.3400.2091.575
5.30X041.2D04125.341.20.2091.622
5.30X042.5D04255.342.50.2091.673
5.30X043.7D04375.343.70.2091.72
5.30X045D04505.3450.2091.772
5.30X046.2D04625.346.20.2091.819
5.30X047.5D04755.347.50.2091.87
5.30X048.7D04875.348.70.2091.917
5.30X050D05005.3500.2091.969
5.30X051.5D05155.351.50.2092.028
5.30X053D05305.3530.2092.087
5.30X054.5D05455.354.50.2092.146
5.30X056D05605.3560.2092.205
5.30X058D05805.3580.2092.283
5.30X060D06005.3600.2092.362
5.30X061.5D06155.361.50.2092.421
5.30X063D06305.3630.2092.48
5.30X065D06505.3650.2092.559
5.30X067D06705.3670.2092.638
5.30X069D06905.3690.2092.717
5.30X071D07105.3710.2092.795
5.30X073D07305.3730.2092.874
5.30X075D07505.3750.2092.953
5.30X077.5D07755.377.50.2093.051
5.30X080D08005.3800.2093.15
5.30X082.5D08255.382.50.2093.248
5.30X085D08505.3850.2093.346
5.30X087.5D08755.387.50.2093.445
5.30X090D09005.3900.2093.543
5.30X092.5D09255.392.50.2093.642
5.30X095D09505.3950.2093.74
5.30X097.5D09755.397.50.2093.839
5.30X100D10005.31000.2093.937
5.30X103D10305.31030.2094.055
5.30X106D10605.31060.2094.173
5.30X109D10905.31090.2094.291
5.30X112D11205.31120.2094.409
5.30X115D11505.31150.2094.528
5.30X118D11805.31180.2094.646
5.30X122D12205.31220.2094.803
5.30X125D12505.31250.2094.921
5.30X128D12805.31280.2095.039
5.30X132D13205.31320.2095.197
5.30X136D13605.31360.2095.354
5.30X140D14005.31400.2095.512
5.30X145D14505.31450.2095.709
5.30X150D15005.31500.2095.906
5.30X155D15505.31550.2096.102
5.30X160D16005.31600.2096.299
5.30X165D16505.31650.2096.496
5.30X170D17005.31700.2096.693
5.30X172.5D17255.3172.50.2096.791
5.30X175D17505.31750.2096.89
5.30X177.5D17755.3177.50.2096.988
5.30X180D18005.31800.2097.087
5.30X182.5D18255.3182.50.2097.185
5.30X185D18505.31850.2097.283
5.30X187.5D18755.3187.50.2097.382
5.30X190D19005.31900.2097.48
5.30X195D19505.31950.2097.677
5.30X200D20005.32000.2097.874
5.30X203D20305.32030.2097.992
5.30X206D20605.32060.2098.11
5.30X212D21205.32120.2098.346
5.30X218D21805.32180.2098.583
5.30X224D22405.32240.2098.819
5.30X230D23005.32300.2099.055
5.30X236D23605.32360.2099.291
5.30X239D23905.32390.2099.409
5.30X243D24305.32430.2099.567
5.30X250D25005.32500.2099.843
5.30X254D25405.32540.20910
5.30X258D25805.32580.20910.157
5.30X261D26105.32610.20910.276
5.30X265D26505.32650.20910.433
5.30X268D26805.32680.20910.551
5.30X272D27205.32720.20910.709
5.30X276D27605.32760.20910.866
5.30X280D28005.32800.20911.024
5.30X283D28305.32830.20911.142
5.30X286D28605.32860.20911.26
5.30X290D29005.32900.20911.417
5.30X295D29505.32950.20911.614
5.30X300D30005.33000.20911.811
5.30X303D30305.33030.20911.929
5.30X307D30705.33070.20912.087
5.30X311D31105.33110.20912.244
5.30X315D31505.33150.20912.402
5.30X320D32005.33200.20912.598
5.30X325D32505.33250.20912.795
5.30X330D33005.33300.20912.992
5.30X335D33505.33350.20913.189
5.30X340D34005.33400.20913.386
5.30X345D34505.33450.20913.583
5.30X350D35005.33500.20913.78
5.30X355D35505.33550.20913.976
5.30X360D36005.33600.20914.173
5.30X365D36505.33650.20914.37
5.30X370D37005.33700.20914.567
5.30X375D37505.33750.20914.764
5.30X379D37905.33790.20914.921
5.30X383D38305.33830.20915.079
5.30X387D38705.33870.20915.236
5.30X391D39105.33910.20915.394
5.30X395D39505.33950.20915.551
5.30X400D40005.34000.20915.748
7.00X109E109071090.2764.291
7.00X112E112071120.2764.409
7.00X115E115071150.2764.528
7.00X118E118071180.2764.646
7.00X122E122071220.2764.803
7.00X125E125071250.2764.921
7.00X128E128071280.2765.039
7.00X132E132071320.2765.197
7.00X136E136071360.2765.354
7.00X140E140071400.2765.512
7.00X145E145071450.2765.709
7.00X150E150071500.2765.906
7.00X155E155071550.2766.102
7.00X160E160071600.2766.299
7.00X165E165071650.2766.496
7.00X170E170071700.2766.693
7.00X172.5E17257172.50.2766.791
7.00X175E175071750.2766.89
7.00X177.5E17757177.50.2766.988
7.00X180E180071800.2767.087
7.00X182.5E18257182.50.2767.185
7.00X185E185071850.2767.283
7.00X185.7E18757185.70.2767.311
7.00X190E190071900.2767.48
7.00X195E195071950.2767.677
7.00X200E200072000.2767.874
7.00X203E203072030.2767.992
7.00X206E206072060.2768.11
7.00X212E212072120.2768.346
7.00X218E218072180.2768.583
7.00X224E224072240.2768.819
7.00X230E230072300.2769.055
7.00X236E236072360.2769.291
7.00X239E239072390.2769.409
7.00X243E243072430.2769.567
7.00X250E250072500.2769.843
7.00X254E254072540.27610
7.00X258E258072580.27610.157
7.00X261E261072610.27610.276
7.00X265E265072650.27610.433
7.00X268E268072680.27610.551
7.00X272E272072720.27610.709
7.00X276E276072760.27610.866
7.00X280E280072800.27611.024
7.00X283E283072830.27611.142
7.00X286E286072860.27611.26
7.00X290E290072900.27611.417
7.00X295E295072950.27611.614
7.00X300E300073000.27611.811
7.00X303E303073030.27611.929
7.00X307E307073070.27612.087
7.00X311E311073110.27612.244
7.00X315E315073150.27612.402
7.00X320E320073200.27612.598
7.00X325E325073250.27612.795
7.00X330E330073300.27612.992
7.00X335E335073350.27613.189
7.00X340E340073400.27613.386
7.00X345E345073450.27613.583
7.00X350E350073500.27613.78
7.00X355E355073550.27613.976
7.00X360E360073600.27614.173
7.00X365E365073650.27614.37
7.00X370E370073700.27614.567
7.00X375E375073750.27614.764
7.00X379E379073790.27614.921
7.00X383E383073830.27615.079
7.00X387E387073870.27615.236
7.00X391E391073910.27615.394
7.00X395E395073950.27615.551
7.00X400E400074000.27615.748
7.00X406E406074060.27615.984
7.00X412E412074120.27616.22
7.00X418E418074180.27616.457
7.00X425E425074250.27616.732
7.00X429E429074290.27616.89
7.00X433E433074330.27617.047
7.00X437E437074370.27617.205
7.00X443E443074430.27617.441
7.00X450E450074500.27617.717
7.00X456E456074560.27617.953
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