The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-050-6766, 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 13 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-050-6766 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-C-320 FED STD 1ST TREATMENT RESPONSE OR QQ-N-290 FED STD 1ST TREATMENT RESPONSE OR QQ-P-416 FED STD 1ST TREATMENT RESPONSE OR QQ-Z-325 FED STD 1ST TREATMENT RESPONSE BODY |
| Connection Style | HOSE GRIPPING NIPPLE ALL ENDS |
| Nominal Inside Diameter Hose Accommodated | 0.375 INCHES ALL ENDS IN |
| Connection Type | THREADED EXTERNAL HOSE GRIPPING FIRST FLUID END CONNECTION |
| Connection Type | EXTERNAL QUICK DISCONNECT ALL ENDS |
| Style Designator | MALE COUPLING HALF |
| Material Document and Classification | QQ-S-630 FED STD 1ST MATERIAL RESPONSE OR QQ-S-631 FED STD 1ST MATERIAL RESPONSE OR QQ-S-634 FED STD 1ST MATERIAL RESPONSE OR QQ-S-637 FED STD 1ST MATERIAL RESPONSE BODY |
| Leg Length | 1.250 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OR CHROMIUM OR NICKEL OR ZINC BODY |
| First End Outside Diameter Hose Accommodated | 0.562 INCHES NOMINAL IN |
| Material | STEEL BODY |
| Quick Disconnect Method | PUSH-PULL ALL ENDS |
| Furnished Items | NUT |
| 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 |
|---|---|
| M4109-16-12-18-C | 2/2 Government specification standardization U.S. Government activity |
| 5PD5 | 5/1 Secondary reference Tuthill Corp Hansen Coupling Div |
NSN 4730-01-050-6766 is a Coupling Half,quick Disconnect, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-050-6766: Surface Treatment Document and Classification: QQ-C-320 FED STD 1ST TREATMENT RESPONSE OR QQ-N-290 FED STD 1ST TREATMENT RESPONSE OR QQ-P-416 FED STD 1ST TREATMENT RESPONSE OR QQ-Z-325 FED STD 1ST TREATMENT RESPONSE BODY; Connection Style: HOSE GRIPPING NIPPLE ALL ENDS; Nominal Inside Diameter Hose Accommodated: 0.375 INCHES ALL ENDS IN; Connection Type: THREADED EXTERNAL HOSE GRIPPING FIRST FLUID END CONNECTION. 13 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.