The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-232-5780, 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 11 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-232-5780 |
| Primary Part Number | SS-QC4-D-4PM |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Swagelok Co |
| Status | ACTIVE |
| Connection Style | PLAIN ALL ENDS |
| Connection Type | EXTERNAL QUICK DISCONNECT ALL ENDS |
| Connection Type | THREADED EXTERNAL PIPE FIRST FLUID END CONNECTION |
| Style Designator | MALE COUPLING HALF |
| Operating Pressure | 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Quick Disconnect Nominal Size | 0.250 INCHES ALL ENDS IN |
| Features Provided | SELF-SEALING |
| Nominal Thread Size | 0.250 INCHES ALL ENDS IN |
| Material | STEEL BODY |
| Quick Disconnect Method | PUSH-PULL ALL ENDS |
| Thread Series Designator | NPT 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 |
|---|---|
| CV0096-054 | Northrop Grumman Corp Electronic Systems Defensive System Div (USA) |
| 045180069-1 | Lockheed Martin Corporation Div Rms (USA) |
| SS-QC4-D-4PM PRIMARY | Swagelok Co (USA) |
| Reference | Meaning |
|---|---|
| 045180069-1 | 5/9 Secondary reference Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems |
| 55-QC4-D-4PM | 5/9 Secondary reference Swagelok Co |
| 045180069 | D/9 Drawing number reference only Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems |
NSN 4730-01-232-5780 is a Coupling Half,quick Disconnect, manufactured by Swagelok Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-232-5780 has 3 manufacturer part numbers on file: CV0096-054 (Northrop Grumman Corp Electronic Systems Defensive System Div), 045180069-1 (Lockheed Martin Corporation Div Rms), SS-QC4-D-4PM (Swagelok Co).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-646-6431. Verify interchangeability with system specifications before substitution.
Key specifications for SS-QC4-D-4PM: Connection Style: PLAIN ALL ENDS; Connection Type: EXTERNAL QUICK DISCONNECT ALL ENDS; Connection Type: THREADED EXTERNAL PIPE 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.