The O-Ring, cataloged under National Stock Number 5331-01-431-9428, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Macgregor Usa Inc. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Macgregor Usa Inc (CAGE 77ZF9); Trelleborg Ersmark Ab (CAGE A222N); Zf Industrieantriebe Witten Gmbh (CAGE D9182) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-431-9428 |
| Primary Part Number | P1-14131 PC 13 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Macgregor Usa Inc |
| 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 |
|---|---|
| P1-14131 PC 13 | Macgregor Usa Inc (USA) |
| 44.2X5.7 | Trelleborg Ersmark Ab (SWE) |
| 461330 | Zf Industrieantriebe Witten Gmbh (DEU) |
| Reference | Meaning |
|---|---|
| 44.2X5.7 | 5/9 Secondary reference Trelleborg Ersmark Ab |
| P1-14131 PC13 | 3/9 Design control — primary reference Trelleborg Ersmark Ab |
| P1-14131 PC13 | C/1 Advisory reference — outside the item-of-supply concept Trelleborg Ersmark Ab |
| P1-14131 PC13 | 5/9 Secondary reference Macgregor Sweden Ab |
NSN 5331-01-431-9428 is a O-Ring, manufactured by Macgregor Usa Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-431-9428 has 3 manufacturer part numbers on file: P1-14131 PC 13 (Macgregor Usa Inc), 44.2X5.7 (Trelleborg Ersmark Ab), 461330 (Zf Industrieantriebe Witten Gmbh).
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.