The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-339-7892, 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 8 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-339-7892 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Connection Style | PLAIN ALL ENDS |
| Connection Type | THREADED EXTERNAL PIPE FIRST FLUID END CONNECTION |
| Style Designator | MALE COUPLING HALF |
| Nominal Thread Size | 0.125 INCHES ALL ENDS IN |
| Material | COPPER ALLOY BODY |
| Quick Disconnect Method | PUSH-PULL ALL ENDS |
| Thread Series Designator | NPT ALL ENDS |
| Reference Number Differentiating Characteristics | CLEAN FOR OXYGEN SERVICE IAW MIL-C-52211,CLASS D,INCANDESCENT AND ULTRAVIOLET LIGHT INSPECTION ONLY |
| 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 |
|---|---|
| 1780AS105-1 | 3/1 Design control — primary reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| 1AM1-H OXYGEN CLEAN | 5/2 Secondary reference U.S. Government activity |
| 1780AS105 | D/9 Drawing number reference only Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 4730-01-339-7892 is a Coupling Half,quick Disconnect, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-339-7892: Connection Style: PLAIN ALL ENDS; Connection Type: THREADED EXTERNAL PIPE FIRST FLUID END CONNECTION; Style Designator: MALE COUPLING HALF; Nominal Thread Size: 0.125 INCHES ALL ENDS IN. 8 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.