The O-Ring, cataloged under National Stock Number 5331-00-599-2551, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Parker Hannifin Corporation Div O-Ring Division. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-599-2551 |
| Primary Part Number | PRP902-16 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parker Hannifin Corporation Div O-Ring Division |
| Status | ACTIVE |
| Cross-Sectional Height | 0.125 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC |
| 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 |
|---|---|
| C70-0016 | Hpm Corp (USA) |
| PRP902-16 PRIMARY | Parker Hannifin Corporation Div O-Ring Division (USA) |
| 5126622 | Rolls-Royce Solutions America Inc (USA) |
| Reference | Meaning |
|---|---|
| 5126622 | 5/9 Secondary reference General Motors Corp |
| D358 | 5/9 Secondary reference Telex Communications Inc Sub of Telex Corp |
| X1423 | 5/9 Secondary reference Pierce Co Inc the Sub of Avis Industrial Corp |
| 117298 | 5/9 Secondary reference Dresser Industries Inc Leroi Div |
| 5126622 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| C70-0016 | 5/9 Secondary reference Dresser Industries Inc Leroi Div |
NSN 5331-00-599-2551 is a O-Ring, manufactured by Parker Hannifin Corporation Div O-Ring Division, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-599-2551 has 3 manufacturer part numbers on file: C70-0016 (Hpm Corp), PRP902-16 (Parker Hannifin Corporation Div O-Ring Division), 5126622 (Rolls-Royce Solutions America Inc).
1 possible match (shared part number, not a government interchangeability claim): 3120-00-760-5731. Verify interchangeability with system specifications before substitution.
Key specifications for PRP902-16: Cross-Sectional Height: 0.125 INCHES NOMINAL IN; Material: RUBBER SYNTHETIC. 2 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.