The O-Ring, cataloged under National Stock Number 5331-01-475-6304, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Aeronautical Systems Support Company Dba Lmassc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | 5331-01-475-6304 |
| Primary Part Number | 7504201AA |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Lockheed Martin Aeronautical Systems Support Company Dba Lmassc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5331-01-475-6304 is a O-Ring, manufactured by Lockheed Martin Aeronautical Systems Support Company Dba Lmassc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-475-6304 has 2 manufacturer part numbers on file: 7504201AA (Lockheed Martin Aeronautical Systems Support Company Dba Lmassc), 7504201AA (Ge Aviation Systems Limited Div Dowty Propellers).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-497-8487. Verify interchangeability with system specifications before substitution.
Key specifications for 7504201AA: Part Name Assigned by Controlling Agency: O-RING,AIRCRAFT, MAT; End Item Identification: C-130J. 0 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.