The Coupling Assembly,quick Disconne, cataloged under National Stock Number 4730-01-420-5302, 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 U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 12 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-420-5302 |
| Primary Part Number | 12364783 |
| Item Name | Coupling Assembly,quick Disconne |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Connection Style | PLAIN FIRST FLUID END CONNECTION |
| Connection Type | THREADED INTERNAL TUBE FIRST FLUID END CONNECTION |
| Style Designator | COUPLING ASSEMBLY |
| Nominal Outside Diameter Tube Accommodated | 1.250 INCHES FIRST FLUID END CONNECTION IN |
| Operating Pressure | 5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Quick Disconnect Nominal Size | 1.625 INCHES ALL ENDS IN |
| Nominal Thread Size | 1.625 INCHES FIRST FLUID END CONNECTION IN |
| Maximum Operating Temp | 250.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Thread Class | 2B FIRST FLUID END CONNECTION |
| Thread Quantity Per Inch | 12 FIRST FLUID END CONNECTION |
| Quick Disconnect Method | PUSH-PULL ALL ENDS |
| Thread Series Designator | UN FIRST FLUID END CONNECTION |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4730-01-420-5302 is a Coupling Assembly,quick Disconne, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-420-5302 has 3 manufacturer part numbers on file: 12364783 (U S Army Tank Automotive Command Amsta-Im-Mm), 12364783 (Bae Systems Land & Armaments L.p.), 12364783 (Amz Alabama Inc.).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-434-5163. Verify interchangeability with system specifications before substitution.
Key specifications for 12364783: Connection Style: PLAIN FIRST FLUID END CONNECTION; Connection Type: THREADED INTERNAL TUBE FIRST FLUID END CONNECTION; Style Designator: COUPLING ASSEMBLY; Overall Length: 6.500 INCHES NOMINAL IN. 12 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.