The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-028-9252, 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 13 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 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 | 4730-01-028-9252 |
| Primary Part Number | 2157-5 |
| 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 |
| Connection Style | DOUBLE THREADED SECTION BOSS FITTING GASKET W/LOCKNUT SEALING ALL ENDS |
| Connection Type | EXTERNAL QUICK DISCONNECT ALL ENDS |
| Connection Type | THREADED EXTERNAL BOSS FIRST FLUID END CONNECTION |
| Style Designator | MALE COUPLING HALF |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Quick Disconnect Nominal Size | 0.500 INCHES ALL ENDS IN |
| Leg Length | 1.060 INCHES MINIMUM IN |
| Features Provided | SELF-SEALING |
| Nominal Thread Size | 0.562 INCHES ALL ENDS IN |
| Thread Class | 3A ALL ENDS A |
| Material | STEEL 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 |
|---|---|
| G630038-5 | L3harris Technologies, Inc Div Space & Airborne Systems (USA) |
| 5104-06B-V12 | Parker-Hannifin Corporation Div Stratoflex Products Division Coupling Business Unit (USA) |
| 2157-5 PRIMARY | Transdigm Inc Div Adelwiggins Group (USA) |
NSN 4730-01-028-9252 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 4730-01-028-9252 has 3 manufacturer part numbers on file: G630038-5 (L3harris Technologies, Inc Div Space & Airborne Systems), 5104-06B-V12 (Parker-Hannifin Corporation Div Stratoflex Products Division Coupling Business Unit), 2157-5 (Transdigm Inc Div Adelwiggins Group).
2 possible matches (shared part number, not a government interchangeability claim): 5998-01-074-2520, 5331-01-097-3636. Verify interchangeability with system specifications before substitution.
Key specifications for 2157-5: Connection Style: DOUBLE THREADED SECTION BOSS FITTING GASKET W/LOCKNUT SEALING ALL ENDS; Connection Type: EXTERNAL QUICK DISCONNECT ALL ENDS; Connection Type: THREADED EXTERNAL BOSS FIRST FLUID END CONNECTION; Style Designator: MALE COUPLING HALF. 13 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.