The O-Ring, cataloged under National Stock Number 5331-01-545-8113, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Oshkosh Defense Llc (CAGE 75Q65); General Dynamics European, Land-Systems-Mowag Gmbh Dba Gdels (CAGE S3002); Caterpillar Inc Div Caterpillar Defense (CAGE 11083); Westrac Equipment Pty Ltd (CAGE Z02C9); William Adams Pty Ltd (CAGE Z2ZA9) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-545-8113 |
| Primary Part Number | 203-3940 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| 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 |
|---|---|
| 17KP301 | Oshkosh Defense Llc (USA) |
| 0746753 | General Dynamics European, Land-Systems-Mowag Gmbh Dba Gdels (CHE) |
| 203-3940 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| 203-3940 | Westrac Equipment Pty Ltd (AUS) |
| 203-3940 | William Adams Pty Ltd (AUS) |
| 203-3940 | Hastings Deering (aust) Pty Ltd (AUS) |
| 203-3940 | Finning (uk) Ltd (GBR) |
| CV132931 | Finning (uk) Ltd (GBR) |
| Reference | Meaning |
|---|---|
| 10076374 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 17KP301 | 5/9 Secondary reference Oshkosh Corp |
| 203-3940 | 5/9 Secondary reference Caterpillar of Australia Pty Ltd |
NSN 5331-01-545-8113 is a O-Ring, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-545-8113 has 8 manufacturer part numbers on file: 17KP301 (Oshkosh Defense Llc), 0746753 (General Dynamics European, Land-Systems-Mowag Gmbh Dba Gdels), 203-3940 (Caterpillar Inc Div Caterpillar Defense), 203-3940 (Westrac Equipment Pty Ltd), 203-3940 (William Adams Pty Ltd) and 3 more.
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.