The O-Ring, cataloged under National Stock Number 5331-01-571-8443, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Raytheon Company Dba Raytheon Co. Government technical data includes 5 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-571-8443 |
| Primary Part Number | 6544425-2 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Raytheon Company Dba Raytheon Co |
| Status | ACTIVE |
| Cross-Sectional Height | 0.076 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN |
| Material Document and Classification | HMS 2312,TY I,FORM I ASSN STD SINGLE MATERIAL RESPONSE |
| Color | BLACK |
| Center Hole Diameter | 5.305 INCHES MINIMUM AND 5.375 INCHES MAXIMUM IN |
| Material | RUBBER BUTYL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 6544425-2 PRIMARY | Raytheon Company Dba Raytheon Co (USA) |
NSN 5331-01-571-8443 is a O-Ring, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-571-8443 has 1 manufacturer part number on file: 6544425-2 (Raytheon Company Dba Raytheon Co).
Key specifications for 6544425-2: Cross-Sectional Height: 0.076 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN; Material Document and Classification: HMS 2312,TY I,FORM I ASSN STD SINGLE MATERIAL RESPONSE; Color: BLACK; Special Features: ALTERNATE MATL SPEC IS AMS 3238. 5 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.
NSN 5331-01-571-8443 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.