The Adapter,straight,flange to Tube, cataloged under National Stock Number 4730-01-121-7604, 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 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-121-7604 |
| Primary Part Number | 12256665-1 |
| Item Name | Adapter,straight,flange to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Flange Shape | ROUND FIRST END |
| Flange Face Design | PLAIN FIRST END |
| Connection Style | SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END SECOND END |
| Connection Type | THREADED EXTERNAL HOSE SECOND END |
| Connection Type | FLANGE FIRST END |
| Nominal Thread Size | 0.312 INCHES SECOND END IN |
| Seat Angle | 37.0 DEGREES SECOND END |
| Nominal Outside Diameter | 1.750 INCHES FIRST END IN |
| Thread Class | 2A SECOND END A |
| Thread Quantity Per Inch | 12 SECOND END |
| Material | STEEL COMP 1010 OVERALL |
| Thread Series Designator | UN SECOND END |
| Nominal Thickness | 0.083 INCHES FIRST END IN |
| 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 |
|---|---|
| 12256665-1 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 4730-01-121-7604 is a Adapter,straight,flange to Tube, 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 4730-01-121-7604 has 1 manufacturer part number on file: 12256665-1 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12256665-1: Flange Shape: ROUND FIRST END; Flange Face Design: PLAIN FIRST END; Connection Style: SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END SECOND END; Connection Type: THREADED EXTERNAL HOSE SECOND END. 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.