The O-Ring, cataloged under National Stock Number 5331-01-287-4815, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-287-4815 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Status | ACTIVE |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Criticality Code Justification | ZZZW |
| Departure From Cited Document | CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D |
| Center Hole Diameter | 2.165 INCHES MINIMUM AND 2.185 INCHES MAXIMUM IN |
| 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 |
|---|---|
| MS28775-139 | 5/9 Secondary reference U.S. Government activity |
| MS28775-139CP | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| MS28775-139 | 5/9 Secondary reference Sae International Dba Sae International |
| MS28775-139CP | 3/1 Design control — primary reference Sae International Dba Sae International |
| SAE-AS28775 | 3/1 Design control — primary reference Sae International Dba Sae International |
| MS28775-139 | 5/9 Secondary reference U.S. Government activity |
| A180-139 | 5/1 Secondary reference U.S. Government activity |
| A180-139CP | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
NSN 5331-01-287-4815 is a O-Ring, classified under FSC 5331, O-ring. Status: active.
Key specifications for 5331-01-287-4815: Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Criticality Code Justification: ZZZW; Departure From Cited Document: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D; Center Hole Diameter: 2.165 INCHES MINIMUM AND 2.185 INCHES MAXIMUM IN. 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.