The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-234-7430, 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 Transdigm Inc Div Adelwiggins Group. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-234-7430 |
| Primary Part Number | 4352D23LD3A |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Transdigm Inc Div Adelwiggins Group |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 1,CLASS 2 FED SPEC 1ST TREATMENT RESPONSE AND MIL-S-5002 MIL SPEC 2ND TREATMENT RESPONSE BODY |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL ALL ENDS |
| Connection Type | THREADED EXTERNAL BOSS FIRST FLUID END CONNECTION |
| Connection Type | EXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END |
| Style Designator | MALE COUPLING HALF |
| Leg Length | 0.512 INCHES NOMINAL IN |
| Nominal Thread Size | 0.375 INCHES ALL ENDS IN |
| Surface Treatment | CADMIUM AND PASSIVATE BODY |
| Thread Class | 3A ALL ENDS A |
| Material | STEEL CORROSION RESISTING BODY |
| Quick Disconnect Method | SPRING PUSH-LOCK FIRST QUICK DISCONNECT END |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) 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 |
|---|---|
| 831751-401 | Mag Aerospace Industries, Llc Div Safran Cabins (USA) |
| 4352D23LD3A PRIMARY | Transdigm Inc Div Adelwiggins Group (USA) |
| Reference | Meaning |
|---|---|
| 831751-401 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-234-7430 is a Coupling Half,quick Disconnect, manufactured by Transdigm Inc Div Adelwiggins Group, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-234-7430 has 2 manufacturer part numbers on file: 831751-401 (Mag Aerospace Industries, Llc Div Safran Cabins), 4352D23LD3A (Transdigm Inc Div Adelwiggins Group).
Key specifications for 4352D23LD3A: Surface Treatment Document and Classification: QQ-P-416,TYPE 1,CLASS 2 FED SPEC 1ST TREATMENT RESPONSE AND MIL-S-5002 MIL SPEC 2ND TREATMENT RESPONSE BODY; Connection Style: EXTERNAL SEAT FOR GASKET SEAL ALL ENDS; Connection Type: THREADED EXTERNAL BOSS FIRST FLUID END CONNECTION; Connection Type: EXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END. 12 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.