The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-012-3454, 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 9 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-012-3454 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Connection Style | SOCKET ALL ENDS |
| Connection Type | UNTHREADED INTERNAL TUBE FIRST FLUID END CONNECTION |
| Style Designator | MALE COUPLING HALF |
| Material Document and Classification | QQ-S-766,CLASS 4,CON E,FIN 2 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Nominal Outside Diameter Tube Accommodated | 6.000 INCHES ALL ENDS IN |
| Quick Disconnect Nominal Size | 5.670 INCHES ALL ENDS IN |
| Leg Length | 1.750 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING BODY |
| Quick Disconnect Method | TWIST-LOCK 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 |
| Reference | Meaning |
|---|---|
| 50C24046 | 3/2 Design control — primary reference U.S. Government activity |
| 50C24046 | D/9 Drawing number reference only U.S. Government activity |
| 56633 | 5/1 Secondary reference U.S. Government activity |
| 56633 | 5/1 Secondary reference Fournier Rubber & Supply Co Div Fournier Rubber & Supply |
NSN 4730-01-012-3454 is a Coupling Half,quick Disconnect, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 2530-01-678-1724, 3030-01-689-8012. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-012-3454: Connection Style: SOCKET ALL ENDS; Connection Type: UNTHREADED INTERNAL TUBE FIRST FLUID END CONNECTION; Style Designator: MALE COUPLING HALF; Material Document and Classification: QQ-S-766,CLASS 4,CON E,FIN 2 FED SPEC SINGLE MATERIAL RESPONSE BODY. 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.