The O-Ring, cataloged under National Stock Number 5331-01-653-8787, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Porter Seal Co. Government technical data includes 1 specification, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-653-8787 |
| Primary Part Number | AS28775-012 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Porter Seal Co |
| Status | ACTIVE |
| Material Document and Classification | MIL-P-25732 MIL SPEC SINGLE MATERIAL RESPONSE |
| 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 |
|---|---|
| AS28775-012 PRIMARY | Porter Seal Co (USA) |
NSN 5331-01-653-8787 is a O-Ring, manufactured by Porter Seal Co, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-653-8787 has 1 manufacturer part number on file: AS28775-012 (Porter Seal Co).
Key specifications for AS28775-012: Material Document and Classification: MIL-P-25732 MIL SPEC SINGLE MATERIAL RESPONSE; Special Features: USED ONLY AS REPLACEMENT, SUPERCEDING SPEC MS28775. MATERIAL IS DUROMETER NITRILE RUBBER; Part Name Assigned by Controlling Agency: O-RING, PREFORMED. 1 specification is 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.