The Coupling Assembly,quick Disconne, cataloged under National Stock Number 4730-01-179-5474, 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 Swagelok Co. Government technical data includes 14 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-179-5474 |
| Primary Part Number | B-QC-8-D1-810 |
| Item Name | Coupling Assembly,quick Disconne |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Swagelok Co |
| Status | ACTIVE |
| Connection Style | FLARELESS FIRST FLUID END CONNECTION |
| Connection Type | THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION |
| Style Designator | COUPLING ASSEMBLY |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES FIRST FLUID END CONNECTION IN |
| Operating Pressure | 500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Quick Disconnect Nominal Size | 0.500 INCHES ALL ENDS IN |
| Leg Length | 0.875 INCHES NOMINAL IN |
| Nominal Thread Size | 0.750 INCHES FIRST FLUID END CONNECTION IN |
| Seat Angle | 20.0 DEGREES |
| Maximum Operating Temp | 250.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Thread Class | 2A FIRST FLUID END CONNECTION A |
| Material | COPPER ALLOY OVERALL |
| Quick Disconnect Method | PUSH-PULL ALL ENDS |
| Thread Series Designator | UNF FIRST 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 |
|---|---|
| 22C1127 | L3harris Maritime Power & Energy Solutions, Inc (USA) |
| B-QC-8-D1-810 PRIMARY | Swagelok Co (USA) |
| Reference | Meaning |
|---|---|
| B810-QC-61DESO | 5/9 Secondary reference Swagelok Co |
| 8ZH-Q8VN-B | 5/9 Secondary reference U.S. Government activity |
| 8ZH-QVN-B | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-179-5474 is a Coupling Assembly,quick Disconne, manufactured by Swagelok Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-179-5474 has 2 manufacturer part numbers on file: 22C1127 (L3harris Maritime Power & Energy Solutions, Inc), B-QC-8-D1-810 (Swagelok Co).
Key specifications for B-QC-8-D1-810: Connection Style: FLARELESS FIRST FLUID END CONNECTION; Connection Type: THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION; Style Designator: COUPLING ASSEMBLY; Overall Length: 5.062 INCHES NOMINAL IN. 14 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.