The O-Ring, cataloged under National Stock Number 5331-01-601-8396, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Derbyshire Machine & Tool Co. 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 | 5331-01-601-8396 |
| Primary Part Number | ARP 256, BUNA N |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Derbyshire Machine & Tool Co |
| 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 |
|---|---|
| ARP 256, BUNA N PRIMARY | Derbyshire Machine & Tool Co (USA) |
| 62-S-102-5 PC NO 5 | Derbyshire Machine & Tool Co (USA) |
NSN 5331-01-601-8396 is a O-Ring, manufactured by Derbyshire Machine & Tool Co, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-601-8396 has 2 manufacturer part numbers on file: ARP 256, BUNA N (Derbyshire Machine & Tool Co), 62-S-102-5 PC NO 5 (Derbyshire Machine & Tool Co).
Key specifications for ARP 256, BUNA N: End Item Identification: EJECTOR. 0 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.