The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-00-772-1938, 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 Saf-T-Flo Industries Corporation. Government technical data includes 9 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-00-772-1938 |
| Primary Part Number | DQC680-4C-FAV-1 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Saf-T-Flo Industries Corporation |
| Status | ACTIVE |
| Connection Style | FLARED ALL ENDS |
| Connection Type | THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION |
| Style Designator | MALE COUPLING HALF |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES ALL ENDS IN |
| Leg Length | 0.550 INCHES NOMINAL IN |
| Nominal Thread Size | 0.438 INCHES ALL ENDS IN |
| Seat Angle | 37.0 DEGREES |
| Thread Class | 3A ALL ENDS A |
| 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 | F |
| Part Number | Manufacturer |
|---|---|
| DQC680-4C-FAV-1 PRIMARY | Saf-T-Flo Industries Corporation (USA) |
| 4034T99P01 PRIMARY | Deutsch Co the (USA) |
| Reference | Meaning |
|---|---|
| DQC680-4C-FAV | 5/9 Secondary reference Bromar Engineering |
| DQC680-4CFAV | 5/9 Secondary reference Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company |
| 4034T98P02 | 5/2 Secondary reference U.S. Government activity |
| 4034T98P01 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 4730-00-772-1938 is a Coupling Half,quick Disconnect, manufactured by Saf-T-Flo Industries Corporation, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-772-1938 has 2 manufacturer part numbers on file: DQC680-4C-FAV-1 (Saf-T-Flo Industries Corporation), 4034T99P01 (Deutsch Co the).
1 possible match (shared part number, not a government interchangeability claim): 1680-01-077-7827. Verify interchangeability with system specifications before substitution.
Key specifications for DQC680-4C-FAV-1: Connection Style: FLARED ALL ENDS; Connection Type: THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION; Style Designator: MALE COUPLING HALF; Overall Length: 2.187 INCHES NOMINAL IN. 9 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.