The O-Ring, cataloged under National Stock Number 5331-00-948-9775, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 4 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 | 5331-00-948-9775 |
| Primary Part Number | 8M7437 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Cross-Sectional Height | 0.176 INCHES MINIMUM AND 0.186 INCHES MAXIMUM IN |
| Material Document and Classification | SIRVON 409022 CAGE 80201 MFR REF SINGLE MATERIAL RESPONSE |
| Center Hole Diameter | 5.253 INCHES MINIMUM AND 5.263 INCHES MAXIMUM IN |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 8M7437 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 5331-00-948-9775 is a O-Ring, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-948-9775 has 1 manufacturer part number on file: 8M7437 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 8M7437: Cross-Sectional Height: 0.176 INCHES MINIMUM AND 0.186 INCHES MAXIMUM IN; Material Document and Classification: SIRVON 409022 CAGE 80201 MFR REF SINGLE MATERIAL RESPONSE; Center Hole Diameter: 5.253 INCHES MINIMUM AND 5.263 INCHES MAXIMUM IN; Material: PLASTIC POLYTETRAFLUOROETHYLENE. 4 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.