The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-540-4829, 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 19 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-540-4829 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flow Angle | 37.0 RADIANS |
| Surface Treatment Document and Classification | MIL-A-8625, TYPE II, CLASS 1 OR 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | PUSH (EXTERNAL) FIRST QUICK DISCONNECT END |
| Connection Style | FLARED SECOND FLUID END CONNECTION |
| Connection Type | THREADED EXTERNAL TUBE SECOND FLUID END CONNECTION |
| Connection Type | INTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END |
| Style Designator | FEMALE COUPLING HALF |
| Material Document and Classification | QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE AND QQ-A-225/8 FED SPEC 1ST MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES SECOND FLUID END CONNECTION IN |
| Operating Pressure | 500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS |
| Quick Disconnect Nominal Size | 0.752 INCHES FIRST QUICK DISCONNECT END IN |
| Leg Length | 0.657 INCHES NOMINAL IN |
| Nominal Thread Size | 0.750 INCHES SECOND FLUID END CONNECTION IN |
| Maximum Operating Temp | 275.0 FAHRENHEIT FIRST RESPONSE DEGF |
| Surface Treatment | ANODIZE OVERALL |
| Thread Class | 3A SECOND FLUID END CONNECTION A |
| Thread Quantity Per Inch | 16 SECOND FLUID END CONNECTION |
| Material | ALUMINUM ALLOY OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) SECOND FLUID END CONNECTION |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 966060-5C | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-540-4829 is a Coupling Half,quick Disconnect, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-540-4829: Flow Angle: 37.0 RADIANS; Surface Treatment Document and Classification: MIL-A-8625, TYPE II, CLASS 1 OR 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Connection Style: PUSH (EXTERNAL) FIRST QUICK DISCONNECT END; Connection Style: FLARED SECOND FLUID END CONNECTION. 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.
NSN 4730-01-540-4829 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.