The O-Ring, cataloged under National Stock Number 5331-01-055-4402, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Rolls-Royce Corporation. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-055-4402 |
| Primary Part Number | 6837663 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Rolls-Royce Corporation |
| Status | ACTIVE |
| Cross-Sectional Height | 0.132 INCHES MINIMUM AND 0.142 INCHES MAXIMUM IN |
| Center Hole Diameter | 13.730 INCHES MINIMUM AND 13.930 INCHES MAXIMUM 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 |
NSN 5331-01-055-4402 is a O-Ring, manufactured by Rolls-Royce Corporation, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-055-4402 has 2 manufacturer part numbers on file: 6837663 (Allison Transmission Inc Dba Allison Transmission, Inc), 6837663 (Rolls-Royce Corporation).
Key specifications for 6837663: Cross-Sectional Height: 0.132 INCHES MINIMUM AND 0.142 INCHES MAXIMUM IN; Center Hole Diameter: 13.730 INCHES MINIMUM AND 13.930 INCHES MAXIMUM IN; 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.