The O-Ring, cataloged under National Stock Number 5331-01-538-5138, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Zf Marine Propulsion Systems Miramar Llc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-538-5138 |
| Primary Part Number | 0634 304 688 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Zf Marine Propulsion Systems Miramar Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| US-101523 | Uni-Safe Rettungsgerate Gmbh (DEU) |
| 0634 304 688 PRIMARY | Zf Marine Propulsion Systems Miramar Llc (USA) |
NSN 5331-01-538-5138 is a O-Ring, manufactured by Zf Marine Propulsion Systems Miramar Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-538-5138 has 2 manufacturer part numbers on file: US-101523 (Uni-Safe Rettungsgerate Gmbh), 0634 304 688 (Zf Marine Propulsion Systems Miramar Llc).
Key specifications for 0634 304 688: Special Features: REFERENCE LITERATURE: PDCN N5DFGP REPAIR MANUAL AND SPARE PARTS LIST ZF 45A FIG.1, POS 11; OIL FILTER COVER O-RING A; End Item Identification: MARINE DRIVE UNIT. 0 specifications are documented in the U.S. Government catalog.
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.