The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-003-5529, 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 Eagle Equipment Corporation. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-003-5529 |
| Primary Part Number | 7211-050 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Eagle Equipment Corporation |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-A-8625,TY 1,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE BODY |
| Connection Style | FLARED ALL ENDS |
| Mating End Identification | BENDIX CORP. COUPLING HALF,QUICK DISCONNECT PART NO. D |
| Connection Type | THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION |
| Connection Type | INTERNAL QUICK DISCONNECT ALL ENDS |
| Style Designator | MALE COUPLING HALF |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES ALL ENDS IN |
| Leg Length | 0.535 INCHES MINIMUM AND 0.565 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.438 INCHES ALL ENDS IN |
| Seat Angle | 37.0 DEGREES |
| Surface Treatment | ANODIZE BODY |
| Thread Class | 3A ALL ENDS A |
| Material | ALUMINUM ALLOY BODY |
| Quick Disconnect Method | PUSH-PULL ALL ENDS |
| 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 |
|---|---|
| 7211-050 | Eagle Equipment Corporation (USA) |
| Reference | Meaning |
|---|---|
| 2144699-1 | 7/2 Vendor item drawing reference Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div |
| 7211-050 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-003-5529 is a Coupling Half,quick Disconnect, manufactured by Eagle Equipment Corporation, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-003-5529 has 1 manufacturer part number on file: 7211-050 (Eagle Equipment Corporation).
Key specifications for 7211-050: Surface Treatment Document and Classification: MIL-A-8625,TY 1,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE BODY; Connection Style: FLARED ALL ENDS; Mating End Identification: BENDIX CORP. COUPLING HALF,QUICK DISCONNECT PART NO. D; Connection Type: THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION. 15 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.