The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-00-186-6512, 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 Goriziane Group Spa. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-00-186-6512 |
| Primary Part Number | 2588789-5 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Goriziane Group Spa |
| Status | ACTIVE |
| Connection Style | FLARED ALL ENDS |
| Mating End Identification | BRUNING CO. COUPLING HALF,QUICK DISCONNECT,PART NO.7112-048 |
| Connection Type | THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION |
| Connection Type | INTERNAL QUICK DISCONNECT ALL ENDS |
| Style Designator | MALE COUPLING HALF |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES ALL ENDS IN |
| Quick Disconnect Nominal Size | 0.375 INCHES ALL ENDS IN |
| Leg Length | 0.556 INCHES NOMINAL IN |
| Features Provided | SAFETY LOCKING FEATURE AND SELF-SEALING |
| Nominal Thread Size | 0.562 INCHES ALL ENDS IN |
| Seat Angle | 37.0 DEGREES |
| Surface Treatment | PASSIVATE BODY |
| Thread Class | 3A ALL ENDS A |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| 2588789-5 | Goriziane Group Spa (ITA) |
| Reference | Meaning |
|---|---|
| 7112-047 | 3/2 Design control — primary reference U.S. Government activity |
| 7112-047 | C/1 Advisory reference — outside the item-of-supply concept Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division |
| 2588789 | 7/1 Vendor item drawing reference U.S. Government activity |
| 7112-047 | 5/9 Secondary reference U.S. Government activity |
| 2588789-5 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-00-186-6512 is a Coupling Half,quick Disconnect, manufactured by Goriziane Group Spa, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-186-6512 has 1 manufacturer part number on file: 2588789-5 (Goriziane Group Spa).
4 possible matches (shared part number, not a government interchangeability claim): 4730-00-186-6513, 4730-01-123-5718, 4730-01-139-1006. Verify interchangeability with system specifications before substitution.
Key specifications for 2588789-5: Connection Style: FLARED ALL ENDS; Mating End Identification: BRUNING CO. COUPLING HALF,QUICK DISCONNECT,PART NO.7112-048; Connection Type: THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION; Connection Type: INTERNAL QUICK DISCONNECT ALL ENDS. 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.