The O-Ring, cataloged under National Stock Number 5331-00-959-5099, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Woodward, Inc. Div Fuel Systems and Controls. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5331-00-959-5099 |
| Primary Part Number | 182576 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Woodward, Inc. Div Fuel Systems and Controls |
| Status | ACTIVE |
| Cross-Sectional Height | 0.103 INCHES NOMINAL IN |
| Criticality Code Justification | FEAT |
| 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 | F |
| Part Number | Manufacturer |
|---|---|
| 182576 PRIMARY | Woodward, Inc. Div Fuel Systems and Controls (USA) |
| Reference | Meaning |
|---|---|
| 2-120L308-80 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| 2-120L308-8 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| 2-120 L1218-8 M25988 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
NSN 5331-00-959-5099 is a O-Ring, manufactured by Woodward, Inc. Div Fuel Systems and Controls, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-959-5099 has 1 manufacturer part number on file: 182576 (Woodward, Inc. Div Fuel Systems and Controls).
1 possible match (shared part number, not a government interchangeability claim): 5305-01-185-3471. Verify interchangeability with system specifications before substitution.
Key specifications for 182576: Cross-Sectional Height: 0.103 INCHES NOMINAL IN; Criticality Code Justification: FEAT; Special Features: ITEM IS A CRITICAL SAFETY ITEM (CSI); Material: RUBBER SYNTHETIC. 3 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.