The O-Ring, cataloged under National Stock Number 5331-01-422-4336, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Hydac Corp. 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 | Hydac Corp (CAGE 59793) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-422-4336 |
| Primary Part Number | KHB 25 SAE 15 X 2.5 O'RING BUNA |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Hydac Corp |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| KHB-25 SAE ITEM 8 BUNA | Hydac Corp (USA) |
| KHB 25 SAE 15 X 2.5 O'RING BUNA PRIMARY | Hydac Corp (USA) |
NSN 5331-01-422-4336 is a O-Ring, manufactured by Hydac Corp, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-422-4336 has 2 manufacturer part numbers on file: KHB-25 SAE ITEM 8 BUNA (Hydac Corp), KHB 25 SAE 15 X 2.5 O'RING BUNA (Hydac Corp).
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.