The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-373-2744, 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 Dixon Valve & Coupling Company, Llc Div Dixon Fire. Government technical data includes 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-373-2744 |
| Primary Part Number | 300-D-90-AL |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Dixon Valve & Coupling Company, Llc Div Dixon Fire |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES |
| Surface Treatment Document and Classification | MIL-A-8625,TY II,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE BODY |
| Connection Style | PLAIN ALL ENDS |
| Connection Type | THREADED INTERNAL PIPE FIRST FLUID END CONNECTION |
| Connection Type | INTERNAL QUICK DISCONNECT ALL ENDS |
| Style Designator | MALE COUPLING HALF |
| Material Document and Classification | QQ-A-601,T6 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Leg Length | 3.844 INCHES NOMINAL IN |
| Nominal Thread Size | 3.000 INCHES ALL ENDS IN |
| Surface Treatment | ANODIZE BODY |
| Material | ALUMINUM ALLOY BODY |
| Quick Disconnect Method | CAM-LOCKING 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 |
| Part Number | Manufacturer |
|---|---|
| 300-D-90-AL PRIMARY | Dixon Valve & Coupling Company, Llc Div Dixon Fire (USA) |
| Reference | Meaning |
|---|---|
| 1D96778PK-001 | 5/2 Secondary reference U.S. Government activity |
| 1D96778PK | 7/1 Vendor item drawing reference U.S. Government activity |
NSN 4730-01-373-2744 is a Coupling Half,quick Disconnect, manufactured by Dixon Valve & Coupling Company, Llc Div Dixon Fire, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-373-2744 has 1 manufacturer part number on file: 300-D-90-AL (Dixon Valve & Coupling Company, Llc Div Dixon Fire).
Key specifications for 300-D-90-AL: Flow Angle: 90.0 DEGREES; Surface Treatment Document and Classification: MIL-A-8625,TY II,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE BODY; Connection Style: PLAIN ALL ENDS; Connection Type: THREADED INTERNAL PIPE 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.