The O-Ring, cataloged under National Stock Number 5331-01-288-7156, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-288-7156 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Status | ACTIVE |
| Temp Rating | -65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.057 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN |
| Hardness Rating | 75.0 SHORE DUROMETER A MINIMUM AND 85.0 SHORE DUROMETER A MAXIMUM |
| Criticality Code Justification | ZZZY |
| Material Document and Classification | NAS1613 ASSN STD SINGLE MATERIAL RESPONSE |
| Center Hole Diameter | 0.052 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN |
| Material | RUBBER ETHYLENE-PROPYLENE CLASS EPM |
| Reference Number Differentiating Characteristics | CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Reference | Meaning |
|---|---|
| 58280-TAB ITEM 15 | 5/9 Secondary reference U.S. Government activity |
| NAS1613 | 3/1 Design control — primary reference U.S. Government activity |
| NAS1611-003CP | C/1 Advisory reference — outside the item-of-supply concept Naval Inventory Control Point Mechanicsburg |
| NAS1611-003 | 5/9 Secondary reference U.S. Government activity |
| 58280-TAB ITEM 15CP | 5/9 Secondary reference Naval Inventory Control Point Mechanicsburg |
| NAS1611-003CP | 5/9 Secondary reference U.S. Government activity |
NSN 5331-01-288-7156 is a O-Ring, classified under FSC 5331, O-ring. Status: active.
Key specifications for 5331-01-288-7156: Temp Rating: -65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.057 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN; Hardness Rating: 75.0 SHORE DUROMETER A MINIMUM AND 85.0 SHORE DUROMETER A MAXIMUM; Criticality Code Justification: ZZZY. 8 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.