The O-Ring, cataloged under National Stock Number 5331-01-503-7830, 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. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-503-7830 |
| Primary Part Number | 9X-7419 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Center Hole Diameter | 36.09 MILLIMETERS NOMINAL MM |
| Material | RUBBER SYNTHETIC |
| 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 |
|---|---|
| 9X-7419 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| 9X-9419 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5331-01-503-7830 is a O-Ring, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-503-7830 has 1 manufacturer part number on file: 9X-7419 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 9X-7419: Special Features: 167-1277 ENGINE AR-CORE FUEL INJECTION SYSTEM SMCS-1251, 1253, 1272, 1281, 1286, 1290, 1292, 1299; Center Hole Diameter: 36.09 MILLIMETERS NOMINAL MM; Part Name Assigned by Controlling Agency: SEAL-O-RING; End Item Identification: DIESEL ENGINE FUEL INJECTION PUMP GP 128-8510, S/N BET1-UP. 2 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.