The O-Ring, cataloged under National Stock Number 5331-01-431-8259, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Akron Brass Company. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Akron Brass Company (CAGE 00912) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-431-8259 |
| Primary Part Number | 07-57-299 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Akron Brass Company |
| Status | ACTIVE |
| 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 |
|---|---|
| 21158 ITEM 8 | Akron Brass Company (USA) |
| 07-57-299 PRIMARY | Akron Brass Company (USA) |
NSN 5331-01-431-8259 is a O-Ring, manufactured by Akron Brass Company, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-431-8259 has 2 manufacturer part numbers on file: 21158 ITEM 8 (Akron Brass Company), 07-57-299 (Akron Brass Company).
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.