The O-Ring, cataloged under National Stock Number 5331-01-062-4731, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Parker-Hannifin Corp Div O-Ring Division. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 18 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-062-4731 |
| Primary Part Number | 7052637-02 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parker-Hannifin Corp Div O-Ring Division |
| Status | ACTIVE |
| Temp Rating | -30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 2.54 MILLIMETERS MINIMUM AND 2.70 MILLIMETERS MAXIMUM MM |
| Hardness Rating | 70.0 SHORE DUROMETER A NOMINAL |
| Elongation Percentage | 331 MAXIMUM |
| Center Hole Diameter | 53.21 MILLIMETERS MINIMUM AND 54.07 MILLIMETERS MAXIMUM MM |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 7052637-02 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| 7052637-02 | Parker Brownsville Servicio S.a. De C.v. (MEX) |
| Reference | Meaning |
|---|---|
| 5876A92 | 5/9 Secondary reference Myers F E Co Sub of Pentair Corp |
| PRP568-138 2069-70 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| 2-138 N674-70 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| 2-138N674-70 | 5/9 Secondary reference Zf Industrieantriebe Witten Gmbh |
| M83461/1-148 | 5/9 Secondary reference Zf Industrieantriebe Witten Gmbh |
| 11-138 7505-70 | 5/9 Secondary reference U.S. Government activity |
| 551297 | 5/9 Secondary reference Calzoni Srl |
| NO674 2-138 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| D0551297 | 5/9 Secondary reference Calzoni Srl |
| 36624-53,64X2,62 | 5/9 Secondary reference Eriks B.v. |
| 5876A92 | 5/9 Secondary reference Calder Ltd |
| 5876A502 | 5/9 Secondary reference Myers F E Co Sub of Pentair Corp |
| 1067878-138 | 5/9 Secondary reference General Dynamics Land Systems Canadacorp |
| 7052637-02 | 3/1 Design control — primary reference Naval Sea Systems Command |
| 1067878 | 5/9 Secondary reference General Dynamics Land Systems Canadacorp |
| 18A25-13 | 5/9 Secondary reference Magnatrol Valve Corp Dba Magnatrol Valve Corp |
| A3-PS-000121/7 | 5/9 Secondary reference Calder Ltd |
| A3-PS-000121 | 5/1 Secondary reference Calder Ltd |
NSN 5331-01-062-4731 is a O-Ring, manufactured by Parker-Hannifin Corp Div O-Ring Division, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-062-4731 has 2 manufacturer part numbers on file: 7052637-02 (Parker-Hannifin Corp Div O-Ring Division), 7052637-02 (Parker Brownsville Servicio S.a. De C.v.).
7 possible matches (shared part number, not a government interchangeability claim): 5365-01-062-6336, 4730-01-063-3694, 5310-01-063-4970. Verify interchangeability with system specifications before substitution.
Key specifications for 7052637-02: Temp Rating: -30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF; Cross-Sectional Height: 2.54 MILLIMETERS MINIMUM AND 2.70 MILLIMETERS MAXIMUM MM; Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL; Elongation Percentage: 331 MAXIMUM. 6 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.