The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-073-5851, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-073-5851 |
| Primary Part Number | 2914556-14 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE BODY |
| Connection Style | BOSS GASKET SEAL ALL ENDS |
| Mating End Identification | NAVORD COUPLING HALF,QUICK DISCONNECT,DWG NO. 2914555-14 |
| Connection Type | THREADED INTERNAL BOSS FIRST FLUID END CONNECTION |
| Connection Type | INTERNAL QUICK DISCONNECT ALL ENDS |
| Style Designator | MALE COUPLING HALF |
| Material Document and Classification | ASTM A484 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Quick Disconnect Nominal Size | 1.188 INCHES ALL ENDS IN |
| Leg Length | 0.764 INCHES NOMINAL IN |
| Features Provided | SAFETY LOCKING FEATURE AND SELF-SEALING |
| Nominal Thread Size | 0.562 INCHES ALL ENDS IN |
| Surface Treatment | PASSIVATE BODY |
| Thread Class | 3B ALL ENDS |
| Material | STEEL BODY |
| Quick Disconnect Method | PUSH-PULL ALL ENDS |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) 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 |
|---|---|
| 2914556-14 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 250R117WC6 | Transdigm Inc Div Adelwiggins Group (USA) |
| Reference | Meaning |
|---|---|
| 2914556 | D/9 Drawing number reference only Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 4730-01-073-5851 is a Coupling Half,quick Disconnect, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-073-5851 has 2 manufacturer part numbers on file: 2914556-14 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 250R117WC6 (Transdigm Inc Div Adelwiggins Group).
2 possible matches (shared part number, not a government interchangeability claim): 4730-01-242-2902, 4730-01-412-5272. Verify interchangeability with system specifications before substitution.
Key specifications for 2914556-14: Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE BODY; Connection Style: BOSS GASKET SEAL ALL ENDS; Mating End Identification: NAVORD COUPLING HALF,QUICK DISCONNECT,DWG NO. 2914555-14; Connection Type: THREADED INTERNAL BOSS FIRST FLUID END CONNECTION. 16 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.