The O-Ring, cataloged under National Stock Number 5331-00-242-7402, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Willard Engineering Co Inc. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5331-00-242-7402 |
| Primary Part Number | 0701252 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Willard Engineering Co Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Outside Diameter | 0.504 INCHES NOMINAL IN |
| Center Hole Diameter | 0.359 INCHES MINIMUM AND 0.369 INCHES MAXIMUM IN |
| Material | RUBBER |
| 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 |
|---|---|
| 0701252 | Norgren Gmbh -Niederlassung Fellbach- (DEU) |
| 0701252 PRIMARY | Willard Engineering Co Inc (USA) |
| 6L.3361.005.00-743987 | Leonardo Germany Gmbh (DEU) |
| ORAR00012-N7038 | Trelleborg Sealing Solutions Germany Gmbh (DEU) |
| 012-8307 PRIMARY | Parker Hannifin Corporation Div O-Ring Division (USA) |
| Reference | Meaning |
|---|---|
| CAT. NO. 070125 2 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 58-34-67 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| ARP568-012-10V70-147 | 5/9 Secondary reference Norgren Gmbh -Niederlassung Fellbach- |
| ARP568-012-10V70-330E | 5/9 Secondary reference Norgren Gmbh -Niederlassung Fellbach- |
| 7500990.06.10.8 5 VDH IT1 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 95.0121 | 5/9 Secondary reference Norgren Gmbh -Niederlassung Fellbach- |
| 55-012-8307 | 5/9 Secondary reference Dana Corp Tyrone Hydraulics Inc Div |
NSN 5331-00-242-7402 is a O-Ring, manufactured by Willard Engineering Co Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-242-7402 has 5 manufacturer part numbers on file: 0701252 (Norgren Gmbh -Niederlassung Fellbach-), 0701252 (Willard Engineering Co Inc), 6L.3361.005.00-743987 (Leonardo Germany Gmbh), ORAR00012-N7038 (Trelleborg Sealing Solutions Germany Gmbh), 012-8307 (Parker Hannifin Corporation Div O-Ring Division).
2 possible matches (shared part number, not a government interchangeability claim): 3120-00-819-7115, 5331-00-990-2591. Verify interchangeability with system specifications before substitution.
Key specifications for 0701252: Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Outside Diameter: 0.504 INCHES NOMINAL IN; Center Hole Diameter: 0.359 INCHES MINIMUM AND 0.369 INCHES MAXIMUM IN; Material: RUBBER. 4 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.