The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-368-7590, 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 Stauff Corp. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-368-7590 |
| Primary Part Number | SMK-20-JIC5/8-V-K-W3 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Stauff Corp |
| Status | ACTIVE |
| Connection Style | INVERTED FLARE ALL ENDS |
| Connection Type | EXTERNAL QUICK DISCONNECT SECOND QUICK DISCONNECT END |
| Connection Type | THREADED INTERNAL TUBE FIRST FLUID END CONNECTION |
| Style Designator | MALE COUPLING HALF |
| Nominal Outside Diameter Tube Accommodated | 0.625 INCHES ALL ENDS IN |
| Quick Disconnect Nominal Size | 0.625 INCHES SECOND QUICK DISCONNECT END IN |
| Nominal Thread Size | 0.875 INCHES ALL ENDS IN |
| Seat Angle | 37.0 DEGREES |
| Thread Class | 2B ALL ENDS |
| Quick Disconnect Method | PUSH-PULL SECOND QUICK DISCONNECT END |
| Thread Series Designator | UNF 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 |
|---|---|
| 2HP535 | Oshkosh Defense Llc (USA) |
| SMK-20-JIC5/8-V-K-W3 PRIMARY | Stauff Corp (USA) |
| Reference | Meaning |
|---|---|
| SMK20-JIC5/8VK-C6F | 3/9 Design control — primary reference Stauff Corp |
| 2HP535 | 5/9 Secondary reference Oshkosh Corp |
| TCM20-5/8 JIC-V | 5/9 Secondary reference Stauff Corp |
NSN 4730-01-368-7590 is a Coupling Half,quick Disconnect, manufactured by Stauff Corp, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-368-7590 has 2 manufacturer part numbers on file: 2HP535 (Oshkosh Defense Llc), SMK-20-JIC5/8-V-K-W3 (Stauff Corp).
Key specifications for SMK-20-JIC5/8-V-K-W3: Connection Style: INVERTED FLARE ALL ENDS; Connection Type: EXTERNAL QUICK DISCONNECT SECOND QUICK DISCONNECT END; Connection Type: THREADED INTERNAL TUBE FIRST FLUID END CONNECTION; Style Designator: MALE COUPLING HALF. 11 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.