The O-Ring, cataloged under National Stock Number 5331-01-425-1901, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Amerex Corporation Dba Amerex Corp. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Amerex Corporation Dba Amerex Corp (CAGE 54905) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-425-1901 |
| Primary Part Number | 06903 REV D ITEM 9 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Amerex Corporation Dba Amerex 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 |
|---|---|
| 06903 REV D ITEM 9 PRIMARY | Amerex Corporation Dba Amerex Corp (USA) |
| Reference | Meaning |
|---|---|
| 01124 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5331-01-425-1901 is a O-Ring, manufactured by Amerex Corporation Dba Amerex Corp, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-425-1901 has 1 manufacturer part number on file: 06903 REV D ITEM 9 (Amerex Corporation Dba Amerex Corp).
2 possible matches (shared part number, not a government interchangeability claim): 4720-01-496-4914, 5331-01-607-7094. Verify interchangeability with system specifications before substitution.
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.