The O-Ring, cataloged under National Stock Number 5331-01-145-9062, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Metrex Valve Corp. Dba Metrex Valve Corp. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Metrex Valve Corp. Dba Metrex Valve Corp (CAGE 21013); Australian Pump Industries Pty Ltd Limited Australian Pump Industries Pty. (CAGE Z3X39) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-145-9062 |
| Primary Part Number | 4K1-50 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Metrex Valve Corp. Dba Metrex Valve 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 |
|---|---|
| 4K1-50 PRIMARY | Metrex Valve Corp. Dba Metrex Valve Corp (USA) |
| 4K1-50 | Australian Pump Industries Pty Ltd Limited Australian Pump Industries Pty. (AUS) |
| Reference | Meaning |
|---|---|
| 5331PL0914286 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| EHOMM-3130-NF2 ITEM 1 | C/1 Advisory reference — outside the item-of-supply concept Metrex Valve Corp. Dba Metrex Valve Corp |
NSN 5331-01-145-9062 is a O-Ring, manufactured by Metrex Valve Corp. Dba Metrex Valve Corp, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-145-9062 has 2 manufacturer part numbers on file: 4K1-50 (Metrex Valve Corp. Dba Metrex Valve Corp), 4K1-50 (Australian Pump Industries Pty Ltd Limited Australian Pump Industries Pty.).
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.