The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-00-070-5172, 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 15 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-00-070-5172 |
| Primary Part Number | SS-QC4-B1-400 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Swagelok Co |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 SEAL |
| Connection Style | FLARELESS ALL ENDS |
| Mating End Identification | CRAWFORD FITTING CO. COUPLING HALF,QUICK DISCONNECT. PART NO. 400-1-4QC200-316 |
| Style Designator | MALE COUPLING HALF |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES ALL ENDS IN |
| Quick Disconnect Nominal Size | 0.250 INCHES ALL ENDS IN |
| Leg Length | 1.094 INCHES NOMINAL IN |
| Features Provided | SELF-SEALING |
| Nominal Thread Size | 0.438 INCHES ALL ENDS IN |
| Seat Angle | 20.0 DEGREES |
| Surface Treatment | PASSIVATE BODY |
| Thread Class | 3A ALL ENDS A |
| Material | STEEL BODY |
| Quick Disconnect Method | PUSH-PULL ALL ENDS |
| 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 |
|---|---|
| CV0096-006 | Northrop Grumman Corp Electronic Systems Defensive System Div (USA) |
| SS-QC4-B1-400 PRIMARY | Swagelok Co (USA) |
| Reference | Meaning |
|---|---|
| 4ZH-Q4CY-SS | 5/2 Secondary reference U.S. Government activity |
| SS400-1-4QC6100-316 | 5/9 Secondary reference Swagelok Co |
| 400-1-4QC6100-316 | 5/9 Secondary reference Swagelok Co |
NSN 4730-00-070-5172 is a Coupling Half,quick Disconnect, manufactured by Swagelok Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-070-5172 has 2 manufacturer part numbers on file: CV0096-006 (Northrop Grumman Corp Electronic Systems Defensive System Div), SS-QC4-B1-400 (Swagelok Co).
Key specifications for SS-QC4-B1-400: Furnished Items and Quantity: 1 SEAL; Connection Style: FLARELESS ALL ENDS; Mating End Identification: CRAWFORD FITTING CO. COUPLING HALF,QUICK DISCONNECT. PART NO. 400-1-4QC200-316; Style Designator: MALE COUPLING HALF. 15 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.