The O-Ring, cataloged under National Stock Number 5331-00-914-3320, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Parker-Hannifin Corp Div O-Ring Division. The record lists 5 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Caterpillar Inc Div Caterpillar Defense (CAGE 11083); Hastings Deering (aust) Pty Ltd (CAGE ZF912); Parker-Hannifin Corp Div O-Ring Division (CAGE 02697); William Adams Pty Ltd (CAGE ZA045); Westrac Pty Ltd (CAGE ZY243) |
| Parameter | Value |
|---|---|
| NSN | 5331-00-914-3320 |
| Primary Part Number | 2-312 S1224-70 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parker-Hannifin Corp Div O-Ring Division |
| 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 |
|---|---|
| 8M4990 | Caterpillar Inc Div Caterpillar Defense (USA) |
| 8M4990 | Hastings Deering (aust) Pty Ltd (AUS) |
| 2-312 S1224-70 PRIMARY | Parker-Hannifin Corp Div O-Ring Division (USA) |
| 8M4990 | William Adams Pty Ltd (AUS) |
| 8M4990 | Westrac Pty Ltd (AUS) |
| Reference | Meaning |
|---|---|
| 2-312S1032-70 | 5/9 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division |
NSN 5331-00-914-3320 is a O-Ring, manufactured by Parker-Hannifin Corp Div O-Ring Division, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-914-3320 has 5 manufacturer part numbers on file: 8M4990 (Caterpillar Inc Div Caterpillar Defense), 8M4990 (Hastings Deering (aust) Pty Ltd), 2-312 S1224-70 (Parker-Hannifin Corp Div O-Ring Division), 8M4990 (William Adams Pty Ltd), 8M4990 (Westrac Pty Ltd).
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.