The O-Ring, cataloged under National Stock Number 5331-01-556-9676, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Marmon-Herrington Company. Government technical data includes 2 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 | 5331-01-556-9676 |
| Primary Part Number | MT22-1285 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Marmon-Herrington Company |
| Status | ACTIVE |
| Cross-Sectional Height | 5.0 MILLIMETERS NOMINAL MM |
| Center Hole Diameter | 119.0 MILLIMETERS NOMINAL MM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5331-01-556-9676 is a O-Ring, manufactured by Marmon-Herrington Company, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-556-9676 has 2 manufacturer part numbers on file: MT22-1285 (Marmon-Herrington Company), MAS12021 (Np Aerospace Limited).
Key specifications for MT22-1285: Cross-Sectional Height: 5.0 MILLIMETERS NOMINAL MM; Center Hole Diameter: 119.0 MILLIMETERS NOMINAL MM; Part Name Assigned by Controlling Agency: O-RING (119 X 5); End Item Identification: MRAP - UNIQUE NSN - COUGAR JERRV 6X6 EOD CAT II. 2 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.