The Chain Fastener,angle, cataloged under National Stock Number 4030-01-439-0059, is classified within Federal Supply Class 4030 (Fittings for Rope, Cable, and Chain) of the Rope, Cable, Chain, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4030-01-439-0059 |
| Primary Part Number | 12421455 |
| Item Name | Chain Fastener,angle |
| FSC / FSG | 4030 / 40 — Fittings for Rope, Cable, and Chain |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Flat End Radius | 15.000 MILLIMETERS NOMINAL MM |
| Elevated End Radius | 5.000 MILLIMETERS NOMINAL MM |
| Hole Center to Elevated End Length | 5.000 MILLIMETERS NOMINAL MM |
| First Flat Length | 20.500 MILLIMETERS NOMINAL MM |
| First Hole Diameter | 10.600 MILLIMETERS MINIMUM AND 11.400 MILLIMETERS MAXIMUM MM |
| Overall Thickness | 0.0598 INCHES NOMINAL IN |
| Second Flat Length | 12.000 MILLIMETERS NOMINAL MM |
| Style Designator | TAPERED |
| Material Document and Classification | ASTM A569 ASSN STD SINGLE MATERIAL RESPONSE AND ASTM A366 ASSN STD SINGLE MATERIAL RESPONSE |
| Second Hole Diameter | 4.600 MILLIMETERS MINIMUM AND 5.000 MILLIMETERS MAXIMUM MM |
| Hole Center to Flat End Length | 15.000 MILLIMETERS NOMINAL MM |
| Angle | 25.0 DEGREES NOMINAL |
| Material | STEEL COMP 1009 |
| 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 |
|---|---|
| 12421455 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 12421455 | 5/1 Secondary reference Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc |
NSN 4030-01-439-0059 is a Chain Fastener,angle, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 4030, Fittings for Rope, Cable, and Chain. Status: active.
NSN 4030-01-439-0059 has 1 manufacturer part number on file: 12421455 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12421455: Flat End Radius: 15.000 MILLIMETERS NOMINAL MM; Elevated End Radius: 5.000 MILLIMETERS NOMINAL MM; Hole Center to Elevated End Length: 5.000 MILLIMETERS NOMINAL MM; First Flat Length: 20.500 MILLIMETERS NOMINAL MM. 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.