The O-Ring, cataloged under National Stock Number 5331-01-331-7231, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Interspiro Inc. 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 | 5331-01-331-7231 |
| Primary Part Number | 336-190-228(10PK) |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Interspiro Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 1.7 MILLIMETERS MINIMUM AND 1.8 MILLIMETERS MAXIMUM MM |
| Center Hole Diameter | 12.2 MILLIMETERS MINIMUM AND 12.6 MILLIMETERS MAXIMUM MM |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| 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 |
|---|---|
| 6318032 | Naval Sea Systems Command (USA) |
| 336-190-228(10PK) PRIMARY | Interspiro Inc (USA) |
NSN 5331-01-331-7231 is a O-Ring, manufactured by Interspiro Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-331-7231 has 2 manufacturer part numbers on file: 6318032 (Naval Sea Systems Command), 336-190-228(10PK) (Interspiro Inc).
Key specifications for 336-190-228(10PK): Cross-Sectional Height: 1.7 MILLIMETERS MINIMUM AND 1.8 MILLIMETERS MAXIMUM MM; Center Hole Diameter: 12.2 MILLIMETERS MINIMUM AND 12.6 MILLIMETERS MAXIMUM MM; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 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.