The O-Ring, cataloged under National Stock Number 5331-01-512-0045, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Oshkosh Defense Llc. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5331-01-512-0045 |
| Primary Part Number | 2HA15 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Oshkosh Defense 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 |
|---|---|
| 3-903 N0552-90 | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA) |
| 2HA15 PRIMARY | Oshkosh Defense Llc (USA) |
| 3-903 NBR | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA) |
| Reference | Meaning |
|---|---|
| 2HA15 | 5/9 Secondary reference Oshkosh Corp |
NSN 5331-01-512-0045 is a O-Ring, manufactured by Oshkosh Defense Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-512-0045 has 3 manufacturer part numbers on file: 3-903 N0552-90 (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division), 2HA15 (Oshkosh Defense Llc), 3-903 NBR (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division).
Key specifications for 2HA15: End Item Identification: 2320014652186,2320014652189,2320014652260. 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.