The Adapter,straight,flange to Tube, cataloged under National Stock Number 4730-01-090-4924, 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 24 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 | 4730-01-090-4924 |
| Primary Part Number | 12257120 |
| 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 |
| Recess Nominal Depth | 0.355 INCHES SECOND END IN |
| Flange Shape | ROUND WITH HOLES SECOND END |
| Flange Face Design | RECESSED CURVED SECOND END |
| Surface Treatment Document and Classification | QQ-Z-325,TYPE 2,CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Surface Treatment Document and Classification | QQ-Z-325,TYPE 2,CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALLUNABLE TO DECODE |
| Connection Style | FLARED (TUBE) FIRST END |
| Bolt Circle Nominal Diameter | 2.250 INCHES SECOND END IN |
| Nominal Overall Length | 3.460 INCHES IN |
| Connection Type | FLANGE SECOND END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Bolt Hole Nominal Diameter | 0.469 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 1.000 INCHES FIRST END IN |
| Nominal Thread Size | 1.312 INCHES FIRST END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Nominal Outside Diameter | 1.000 INCHES SECOND END IN |
| Bolt Hole Quantity | 4 SECOND END |
| Surface Treatment | ZINC OVERALL |
| Surface Treatment | ZINC OVERALLUNABLE TO DECODE |
| Thread Class | 2A FIRST END A |
| Thread Quantity Per Inch | 12 FIRST END |
| Material | STEEL COMP 1010 OVERALL |
| Thread Series Designator | UN FIRST END |
| Nominal Thickness | 0.500 INCHES SECOND END IN |
| Recess Nominal Diameter | 1.906 INCHES SECOND 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 |
|---|---|
| 12257120 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 4730-01-090-4924 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 4730-01-090-4924 has 1 manufacturer part number on file: 12257120 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12257120: Recess Nominal Depth: 0.355 INCHES SECOND END IN; Flange Shape: ROUND WITH HOLES SECOND END; Flange Face Design: RECESSED CURVED SECOND END; Surface Treatment Document and Classification: QQ-Z-325,TYPE 2,CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL. 24 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.