The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-599-4024, 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 Mcmaster-Carr Supply Co. Government technical data includes 17 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-599-4024 |
| Primary Part Number | 6718K26 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Nominal Width Across Flats | 0.687 INCHES IN |
| Nominal Pipe Size Accommodated | 0.250 INCHES FIRST QUICK DISCONNECT END IN |
| Connection Style | PUSH (EXTERNAL) FIRST QUICK DISCONNECT END |
| Connection Style | PLAIN SECOND FLUID END CONNECTION |
| Mating End Identification | MALE |
| Connection Type | THREADED EXTERNAL PIPE SECOND FLUID END CONNECTION |
| Connection Type | UNIVERSAL QUICK DISCONNECT FIRST QUICK DISCONNECT END |
| Style Designator | MALE COUPLING HALF |
| Operating Pressure | 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Quick Disconnect Nominal Size | 0.250 INCHES FIRST QUICK DISCONNECT END IN |
| Leg Length | 0.40 INCHES NOMINAL IN |
| Nominal Thread Size | 0.250 INCHES SECOND FLUID END CONNECTION IN |
| Maximum Operating Temp | 250.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Thread Quantity Per Inch | 18.0 SECOND FLUID END CONNECTION |
| Material | STEEL CORROSION RESISTING OVERALL |
| Quick Disconnect Method | PUSH-PULL FIRST QUICK DISCONNECT END |
| Thread Series Designator | NPTF SECOND FLUID END CONNECTION |
| 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 |
|---|---|
| 6718K26 PRIMARY | Mcmaster-Carr Supply Co (USA) |
NSN 4730-01-599-4024 is a Coupling Half,quick Disconnect, manufactured by Mcmaster-Carr Supply Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-599-4024 has 1 manufacturer part number on file: 6718K26 (Mcmaster-Carr Supply Co).
Key specifications for 6718K26: Nominal Width Across Flats: 0.687 INCHES IN; Nominal Pipe Size Accommodated: 0.250 INCHES FIRST QUICK DISCONNECT END IN; Connection Style: PUSH (EXTERNAL) FIRST QUICK DISCONNECT END; Connection Style: PLAIN SECOND FLUID END CONNECTION. 17 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.