The Coupling Assembly,quick Disconne, cataloged under National Stock Number 4730-01-027-2290, 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 17 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-027-2290 |
| Item Name | Coupling Assembly,quick Disconne |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Connection Style | HOSE OR PLASTIC TUBING GRIPPING FIRST FLUID END CONNECTION |
| Nominal Inside Diameter Hose Accommodated | 0.161 INCHES FIRST FLUID END CONNECTION IN |
| Connection Type | THREADED EXTERNAL HOSE GRIPPING FIRST FLUID END CONNECTION |
| Connection Type | THREADED EXTERNAL PIPE SECOND FLUID END CONNECTION |
| Style Designator | COUPLING ASSEMBLY |
| Operating Pressure | 160.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 0.375 INCHES MINIMUM AND 0.406 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.125 INCHES SECOND FLUID END CONNECTION IN |
| Maximum Operating Temp | 17.8 CELSIUS SINGLE RESPONSE DEGC |
| Maximum Operating Temp | 79.4 CELSIUS FIRST RESPONSE DEGC |
| Surface Treatment | CHROMIUM OVERALL |
| Surface Treatment | UNABLE TO DECODE |
| Material | UNABLE TO DECODE |
| Material | COPPER ALLOY OVERALL |
| Quick Disconnect Method | SPRING PUSH-LOCK SECOND FLUID END CONNECTION |
| Thread Series Designator | NPT SECOND FLUID END CONNECTION |
| Thread Series Designator | UNABLE TO DECODE |
| 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 |
|---|---|
| 98P4-2 | 5/9 Secondary reference U.S. Government activity |
| 298P 1-4-1-8 | C/1 Advisory reference — outside the item-of-supply concept Dayco Industrial |
| 398P-4-2 | 3/2 Design control — primary reference U.S. Government activity |
| 298P 1/4X1/8 | 5/9 Secondary reference Parker Hannifin Corp Hose Products Div |
| 298P 1/4X1/8 | 5/9 Secondary reference Imperial |
NSN 4730-01-027-2290 is a Coupling Assembly,quick Disconne, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-027-2290: Connection Style: HOSE OR PLASTIC TUBING GRIPPING FIRST FLUID END CONNECTION; Nominal Inside Diameter Hose Accommodated: 0.161 INCHES FIRST FLUID END CONNECTION IN; Connection Type: THREADED EXTERNAL HOSE GRIPPING FIRST FLUID END CONNECTION; Connection Type: THREADED EXTERNAL PIPE 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.