The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-117-2818, 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 12 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-117-2818 |
| 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 INTERNAL PIPE FIRST FLUID END CONNECTION |
| Connection Type | EXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END |
| Style Designator | MALE COUPLING HALF |
| Material Document and Classification | QQ-S-630 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-631 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Nominal Thread Size | 0.375 INCHES ALL ENDS IN |
| Specification/standard Data | 81349-MIL-C-4109 GOVERNMENT SPECIFICATION |
| Nondefinitive Spec/std Data | 1 TYPE AND A CLASS AND 2 STYLE |
| Surface Treatment | CADMIUM BODY |
| Material | STEEL BODY |
| Quick Disconnect Method | PUSH-PULL ALL ENDS |
| Thread Series Designator | NPT 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 |
| Reference | Meaning |
|---|---|
| MIL-C-4109 | 4/1 Identification reference U.S. Government activity |
| M4109-021200C | 2/2 Government specification standardization U.S. Government activity |
NSN 4730-01-117-2818 is a Coupling Half,quick Disconnect, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-117-2818: Connection Style: PLAIN ALL ENDS; Connection Type: THREADED INTERNAL PIPE FIRST FLUID END CONNECTION; Connection Type: EXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END; Style Designator: MALE COUPLING HALF. 12 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.