The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-007-5266, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-007-5266 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-A-8625,TY 1,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE BODY |
| Connection Style | FLARED ALL ENDS |
| 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 | QQ-A-255/5,T4 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Nominal Outside Diameter Tube Accommodated | 0.312 INCHES ALL ENDS IN |
| Leg Length | 1.050 INCHES NOMINAL IN |
| Features Provided | SELF-SEALING |
| Nominal Thread Size | 0.500 INCHES ALL ENDS IN |
| Seat Angle | 37.0 DEGREES |
| Surface Treatment | ANODIZE BODY |
| Thread Class | 2A ALL ENDS A |
| Material | ALUMINUM ALLOY BODY |
| Quick Disconnect Method | PUSH-LOCK ALL ENDS |
| Thread Series Designator | UNF ALL ENDS |
| Furnished Items | PIN AND SEAL AND SPRING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 2144698-1 | 7/2 Vendor item drawing reference U.S. Government activity |
| 7211-051 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-007-5266 is a Coupling Half,quick Disconnect, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-007-5266: Surface Treatment Document and Classification: MIL-A-8625,TY 1,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE BODY; Connection Style: FLARED ALL ENDS; Connection Type: THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION; Connection Type: EXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END. 17 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.