The O-Ring, cataloged under National Stock Number 5331-01-311-1475, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Allied Marine Services Llc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Allied Marine Services Llc (CAGE 1QNM6); Oil Mist Measurements Inc (CAGE 1D5E4) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-311-1475 |
| Primary Part Number | 25126-040 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Allied Marine Services Llc |
| 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 |
|---|---|
| 25126-040 PRIMARY | Allied Marine Services Llc (USA) |
| 25124-040 | Oil Mist Measurements Inc (USA) |
| Reference | Meaning |
|---|---|
| 25124-040 | 5/9 Secondary reference Kidde Graviner Ltd |
| 25126-040 | 5/9 Secondary reference Van Ert Electric Company, Inc. |
| 25124-040 | C/1 Advisory reference — outside the item-of-supply concept L'hotellier SAS |
| 25126-040 | 5/9 Secondary reference Allied Marine Services, Llc Dba Allied Technical Services |
| 25126-040 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5331-01-311-1475 is a O-Ring, manufactured by Allied Marine Services Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-311-1475 has 2 manufacturer part numbers on file: 25126-040 (Allied Marine Services Llc), 25124-040 (Oil Mist Measurements Inc).
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.