The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-534-7443, 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 Naval Sea Systems Command. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-534-7443 |
| Primary Part Number | 51344-12-8-F-12-V |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 PRESSURE CAP AND 1 PREFORMED PACKING |
| Connection Style | PUSH (EXTERNAL) FIRST QUICK DISCONNECT END |
| Connection Style | FLARELESS FIRST FLUID END CONNECTION |
| Seat Nominal Radius | 0.405 INCHES IN |
| Mating End Identification | PREECE 9400-12 SERIES FEMALE QUICK DISCONNECT |
| Connection Type | THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION |
| Connection Type | EXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END |
| Style Designator | MALE COUPLING HALF |
| Material Document and Classification | INCONNEL 625 STEEL ALLOY ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.750 INCHES FIRST FLUID END CONNECTION IN |
| Quick Disconnect Nominal Size | 0.750 INCHES FIRST QUICK DISCONNECT END IN |
| Leg Length | 0.688 INCHES NOMINAL IN |
| Nominal Thread Size | 1.062 INCHES FIRST FLUID END CONNECTION IN |
| Media for Which Designed | REFRIGERANT SINGLE RESPONSE |
| Thread Class | 3A FIRST FLUID END CONNECTION A |
| Thread Quantity Per Inch | 12 FIRST FLUID END CONNECTION |
| Material | STEEL OVERALL |
| Quick Disconnect Method | PUSH-PULL FIRST QUICK DISCONNECT END |
| Thread Series Designator | UNIFIED NATIONAL JOINT (UNJ) FIRST FLUID END CONNECTION |
| 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 |
|---|---|
| 51344-12-8-F-12-V PRIMARY | Naval Sea Systems Command (USA) |
| 6394504-01 FIND 7 | Naval Sea Systems Command (USA) |
| 6394504-02 FIND 7 | Naval Sea Systems Command (USA) |
| 51344-12-8-F-12-V PRIMARY | Transdigm Inc Div Adelwiggins Group (USA) |
NSN 4730-01-534-7443 is a Coupling Half,quick Disconnect, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-534-7443 has 4 manufacturer part numbers on file: 51344-12-8-F-12-V (Naval Sea Systems Command), 6394504-01 FIND 7 (Naval Sea Systems Command), 6394504-02 FIND 7 (Naval Sea Systems Command), 51344-12-8-F-12-V (Transdigm Inc Div Adelwiggins Group).
Key specifications for 51344-12-8-F-12-V: Furnished Items and Quantity: 1 PRESSURE CAP AND 1 PREFORMED PACKING; Connection Style: PUSH (EXTERNAL) FIRST QUICK DISCONNECT END; Connection Style: FLARELESS FIRST FLUID END CONNECTION; Seat Nominal Radius: 0.405 INCHES IN. 19 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.