The O-Ring, cataloged under National Stock Number 5331-01-546-8510, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Komatsu Australia Pty Ltd. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5331-01-546-8510 |
| Primary Part Number | YM121850-51960 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Komatsu Australia Pty Ltd |
| 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 |
|---|---|
| YM121850-51960 | Komatsu Australia Pty Ltd (AUS) |
| Reference | Meaning |
|---|---|
| 121850-51960 | C/1 Advisory reference — outside the item-of-supply concept Yanmar America Corporation |
| 121850-51960 | 3/9 Design control — primary reference Yanmar Diesel America Corp |
NSN 5331-01-546-8510 is a O-Ring, manufactured by Komatsu Australia Pty Ltd, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-546-8510 has 1 manufacturer part number on file: YM121850-51960 (Komatsu Australia Pty Ltd).
Key specifications for YM121850-51960: Part Name Assigned by Controlling Agency: O-RING, F.I. PUMP; End Item Identification: GEAR HOUSING FOR NSN 2815-01-538-4257; ENGINE DIESEL. 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.