The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-00-059-8791, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Westinghouse Electric Corp. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-059-8791 |
| Primary Part Number | 331C163H23 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 0.125 INCHES ALL ENDS IN |
| Connection Style | PLAIN ALL ENDS |
| Style Designator | MALE COUPLING HALF |
| Nominal Thread Size | 0.125 INCHES ALL ENDS IN |
| Surface Treatment | NICKEL BODY |
| Material | COPPER ALLOY BODY |
| Quick Disconnect Method | PUSH-PULL ALL ENDS |
| Thread Series Designator | NPT ALL ENDS |
| 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 |
|---|---|
| 331C163H23 | Westinghouse Electric Corp (USA) |
| BPHN2M | Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupler Division (USA) |
| Reference | Meaning |
|---|---|
| 331C163H23 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-00-059-8791 is a Coupling Half,quick Disconnect, manufactured by Westinghouse Electric Corp, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-059-8791 has 2 manufacturer part numbers on file: 331C163H23 (Westinghouse Electric Corp), BPHN2M (Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupler Division).
Key specifications for 331C163H23: Nominal Pipe Size Accommodated: 0.125 INCHES ALL ENDS IN; Connection Style: PLAIN ALL ENDS; Style Designator: MALE COUPLING HALF; Overall Length: 1.160 INCHES NOMINAL IN. 8 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.