The Adapter Bushing, cataloged under National Stock Number 4730-01-073-4288, 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 19 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-073-4288 |
| Primary Part Number | 12288073 |
| Item Name | Adapter Bushing |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Width Across Flats | 2.113 INCHES MINIMUM AND 2.127 INCHES MAXIMUM IN |
| Female End Characteristic | COUNTERSUNK |
| Counterbore/countersink Location | INTERNALLY THREADED END |
| Male End Thread Size | 1.875-12 |
| Female End Thread Length | 0.560 INCHES NOMINAL IN |
| Female End Thread Class | 3B |
| Diameter | 1.560 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Male End Thread Direction | RIGHT-HAND |
| Female End Thread Size | 1.500-18 |
| Wrenching Facility Shape | HEXAGON |
| Male End Screw Thread Series Designator | UN |
| Chamfer Angle in Deg | 30.0 LOCATION NOT OTHERWISE SPECIFIED |
| Depth | 0.560 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Female End Screw Thread Series Designator | UNEF |
| Male End Thread Class | 2A A |
| Female End Thread Direction | RIGHT-HAND |
| Material | STEEL |
| Male End Thread Length | 0.660 INCHES MINIMUM AND 0.675 INCHES MAXIMUM IN |
| Thickness | 0.199 INCHES MINIMUM AND 0.201 INCHES MAXIMUM 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 |
|---|---|
| DAX12862 | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| 12288073 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 12267486 | 5/9 Secondary reference U S Army Tank Automotive Command Amsta-Im-Mm |
| 12288073 | 5/2 Secondary reference U.S. Government activity |
| 12267486 | 5/2 Secondary reference U.S. Government activity |
NSN 4730-01-073-4288 is a Adapter Bushing, 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 4730-01-073-4288 has 2 manufacturer part numbers on file: DAX12862 (Allison Transmission Inc Dba Allison Transmission, Inc), 12288073 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12288073: Width Across Flats: 2.113 INCHES MINIMUM AND 2.127 INCHES MAXIMUM IN; Female End Characteristic: COUNTERSUNK; Counterbore/countersink Location: INTERNALLY THREADED END; Male End Thread Size: 1.875-12. 19 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.