The O-Ring, cataloged under National Stock Number 5331-01-497-4130, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Rolls Royce Corp. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 6 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 | 5331-01-497-4130 |
| Primary Part Number | AS3208-08 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Rolls Royce Corp |
| Status | ACTIVE |
| Cross-Sectional Height | 0.084 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN |
| Hardness Rating | 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM |
| Criticality Code Justification | AGAV |
| Material Document and Classification | SAE AMS7276 ASSN STD SINGLE MATERIAL RESPONSE |
| Center Hole Diameter | 0.635 INCHES MINIMUM AND 0.653 INCHES MAXIMUM IN |
| Material | RUBBER FLUOROCARBON CLASS FPM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| NMM220240 REV D FIND NO. 34 | Bird-Johnson Propeller Company, Llc (USA) |
| AS3208-08 PRIMARY | Rolls Royce Corp (USA) |
| NMM220340 REV E FIND NO. 60 | Bird-Johnson Propeller Company, Llc (USA) |
| AS3208-08 | Ge Avio Srl (ITA) |
| NMM220348 REV A ITEM NO. 12 | Bird-Johnson Propeller Company, Llc (USA) |
| AS3208-08 | Fincantieri S.p.a. Div Direzione Navi Militari (ITA) |
NSN 5331-01-497-4130 is a O-Ring, manufactured by Rolls Royce Corp, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-497-4130 has 6 manufacturer part numbers on file: NMM220240 REV D FIND NO. 34 (Bird-Johnson Propeller Company, Llc), AS3208-08 (Rolls Royce Corp), NMM220340 REV E FIND NO. 60 (Bird-Johnson Propeller Company, Llc), AS3208-08 (Ge Avio Srl), NMM220348 REV A ITEM NO. 12 (Bird-Johnson Propeller Company, Llc) and 1 more.
1 possible match (shared part number, not a government interchangeability claim): 5330-01-519-5411. Verify interchangeability with system specifications before substitution.
Key specifications for AS3208-08: Cross-Sectional Height: 0.084 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN; Hardness Rating: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM; Criticality Code Justification: AGAV; Material Document and Classification: SAE AMS7276 ASSN STD SINGLE MATERIAL RESPONSE. 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.