The O-Ring, cataloged under National Stock Number 5331-01-480-9507, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Equispan Proactive Marketing Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-480-9507 |
| Primary Part Number | 12.1 X 1.6 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Equispan Proactive Marketing Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 1.6 MILLIMETERS NOMINAL MM |
| Hardness Rating | 70.0 SHORE DUROMETER A NOMINAL |
| Center Hole Diameter | 12.1 MILLIMETERS NOMINAL MM |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 12.1 X 1.6 PRIMARY | Equispan Proactive Marketing Inc (USA) |
| Reference | Meaning |
|---|---|
| 7354772-2 | 7/2 Vendor item drawing reference Naval Sea Systems Command |
NSN 5331-01-480-9507 is a O-Ring, manufactured by Equispan Proactive Marketing Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-480-9507 has 1 manufacturer part number on file: 12.1 X 1.6 (Equispan Proactive Marketing Inc).
Key specifications for 12.1 X 1.6: Cross-Sectional Height: 1.6 MILLIMETERS NOMINAL MM; Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL; Special Features: MATERIAL NITRILE; Center Hole Diameter: 12.1 MILLIMETERS NOMINAL MM. 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.