The Elbow,tube to Boss, cataloged under National Stock Number 4730-01-110-4059, 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 14 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 | 4730-01-110-4059 |
| Primary Part Number | 12256456-4 |
| Item Name | Elbow,tube to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 LOCKNUT AND 1 LOCK WASHER |
| Surface Treatment Document and Classification | SPECQQ-Z-325 TYPE II,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Material Document and Classification | MIL-C-13351 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Size | 1.062 INCHES FIRST END IN |
| Nominal Thread Size | 0.875 INCHES SECOND END IN |
| Specification/standard Data | 19207-12256456 GOVERNMENT SPECIFICATION |
| Surface Treatment | CADMIUM OR PHOSPHATE OVERALL |
| Thread Class | 2A ALL ENDS A |
| Thread Quantity Per Inch | 12 FIRST END |
| Thread Quantity Per Inch | 14 SECOND END |
| Material | COPPER ALLOY 377 OR STEEL OVERALL |
| Thread Series Designator | UN 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 |
|---|---|
| 12256456-4 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 4730-01-110-4059 is a Elbow,tube to Boss, 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 4730-01-110-4059 has 1 manufacturer part number on file: 12256456-4 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12256456-4: Furnished Items and Quantity: 1 LOCKNUT AND 1 LOCK WASHER; Surface Treatment Document and Classification: SPECQQ-Z-325 TYPE II,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Connection Style: PLAIN (PIPE) ALL ENDS; Connection Type: THREADED EXTERNAL TUBE ALL ENDS. 14 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.