The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-321-4476, 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 Raytheon Company Dba Raytheon Co. Government technical data includes 20 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-321-4476 |
| Primary Part Number | G437567-50 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Raytheon Company Dba Raytheon Co |
| Status | ACTIVE |
| Nominal Width Across Flats | 1.125 INCHES IN |
| Connection Style | DOUBLE THREADED SECTION BOSS FITTING GASKET W/LOCKNUT SEALING ALL ENDS |
| Bolt Circle Nominal Diameter | 0.391 INCHES IN |
| Connection Type | EXTERNAL QUICK DISCONNECT ALL ENDS |
| Connection Type | THREADED EXTERNAL BOSS FIRST FLUID END CONNECTION |
| Style Designator | MALE COUPLING HALF |
| Bolt Hole Nominal Diameter | 0.062 INCHES IN |
| Quick Disconnect Nominal Size | 0.684 INCHES ALL ENDS IN |
| Mounting Flange Location | FIRST LEG |
| Leg Length | 0.875 INCHES NOMINAL IN |
| Basic Shape Style | HEXAGON FIRST QUICK DISCONNECT END |
| Distance From Mounting Flange to Fluid End | 0.875 INCHES NOMINAL IN |
| Nominal Thread Size | 0.750 INCHES ALL ENDS IN |
| Bolt Hole Quantity | 2 |
| Surface Treatment | PASSIVATE BODY |
| Thread Class | 3A ALL ENDS A |
| Material | STEEL BODY |
| Quick Disconnect Method | PUSH-PULL ALL ENDS |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS |
| Nominal Thickness | 0.250 INCHES IN |
| 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 |
|---|---|
| G437567-50 | Raytheon Company (USA) |
| G437567-50 PRIMARY | Raytheon Company Dba Raytheon Co (USA) |
| Reference | Meaning |
|---|---|
| G437567 | D/9 Drawing number reference only Raytheon Company Div Corp |
| G437567-50 | 5/9 Secondary reference Raytheon Company Div Corp |
NSN 4730-01-321-4476 is a Coupling Half,quick Disconnect, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-321-4476 has 2 manufacturer part numbers on file: G437567-50 (Raytheon Company), G437567-50 (Raytheon Company Dba Raytheon Co).
Key specifications for G437567-50: Nominal Width Across Flats: 1.125 INCHES IN; Connection Style: DOUBLE THREADED SECTION BOSS FITTING GASKET W/LOCKNUT SEALING ALL ENDS; Bolt Circle Nominal Diameter: 0.391 INCHES IN; Connection Type: EXTERNAL QUICK DISCONNECT ALL ENDS. 20 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.