The O-Ring, cataloged under National Stock Number 5331-01-232-2373, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Parker-Hannifin Corporation. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-232-2373 |
| Primary Part Number | 4150-5193 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parker-Hannifin Corporation |
| Status | ACTIVE |
| Cross-Sectional Height | 0.210 INCHES NOMINAL IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| 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 |
|---|---|
| 4150-5193 PRIMARY | Parker-Hannifin Corporation (USA) |
| 31544-4CSF7-1FITEM12 | Parker Hannifin Corp Filtration Group Commercial Filters Div (USA) |
NSN 5331-01-232-2373 is a O-Ring, manufactured by Parker-Hannifin Corporation, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-232-2373 has 2 manufacturer part numbers on file: 4150-5193 (Parker-Hannifin Corporation), 31544-4CSF7-1FITEM12 (Parker Hannifin Corp Filtration Group Commercial Filters Div).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-388-5635. Verify interchangeability with system specifications before substitution.
Key specifications for 4150-5193: Cross-Sectional Height: 0.210 INCHES NOMINAL IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 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.