The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-520-6387, 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 Transdigm Inc Div Adelwiggins Group. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-520-6387 |
| Primary Part Number | 51245-7 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Transdigm Inc Div Adelwiggins Group |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 NUT |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE BODY |
| Connection Type | EXTERNAL QUICK DISCONNECT SECOND QUICK DISCONNECT END |
| Style Designator | MALE COUPLING HALF |
| Quick Disconnect Nominal Size | 1.365 INCHES SECOND QUICK DISCONNECT END IN |
| Leg Length | 0.820 INCHES MINIMUM AND 0.840 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE BODY |
| Material | STEEL CORROSION RESISTING BODY |
| Quick Disconnect Method | PUSH-LOCK FIRST QUICK DISCONNECT END |
| 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 |
|---|---|
| 12438463-7 | General Dynamics Land Systems Inc. Div Gdls Global Llc (USA) |
| 12438463-7 | General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp (USA) |
| 51245-7 PRIMARY | Transdigm Inc Div Adelwiggins Group (USA) |
| Reference | Meaning |
|---|---|
| 12438463 | D/9 Drawing number reference only General Dynamics Land Systems Inc. |
| 12438463-7 | D/9 Drawing number reference only General Dynamics Land Systems Inc. |
NSN 4730-01-520-6387 is a Coupling Half,quick Disconnect, manufactured by Transdigm Inc Div Adelwiggins Group, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-520-6387 has 3 manufacturer part numbers on file: 12438463-7 (General Dynamics Land Systems Inc. Div Gdls Global Llc), 12438463-7 (General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp), 51245-7 (Transdigm Inc Div Adelwiggins Group).
2 possible matches (shared part number, not a government interchangeability claim): 4730-01-522-1881, 4730-01-539-9881. Verify interchangeability with system specifications before substitution.
Key specifications for 51245-7: Furnished Items and Quantity: 1 NUT; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE BODY; Connection Type: EXTERNAL QUICK DISCONNECT SECOND QUICK DISCONNECT END; Style Designator: MALE COUPLING HALF. 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.