The Chain Assembly,single Leg, cataloged under National Stock Number 4010-01-255-7979, is classified within Federal Supply Class 4010 (Chain and Wire Rope) of the Rope, Cable, Chain, and Fittings group. The manufacturer of record is Army, United States Department of the Dba Rock Island Arsenal Jmtc. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4010-01-255-7979 |
| Primary Part Number | 900412 |
| Item Name | Chain Assembly,single Leg |
| FSC / FSG | 4010 / 40 — Chain and Wire Rope |
| Manufacturer | Army, United States Department of the Dba Rock Island Arsenal Jmtc |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 S HOOK |
| Attachment Style | S HOOK FIRST END |
| Supplementary Features | REF DATA ASTM A466,CLASS DL AND FED SPEC RR-C-271,TYPE 2,CLASS 2,MATL SIZE 0.072 IN. (1.83 MM) MM |
| Style Designator | DOUBLE LOOP 1 |
| Material Document and Classification | STM A466,UNS K02501 ASSN STD SINGLE MATERIAL RESPONSE OR RR-C-271,TABLE 1,UNS K03505 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 0.072 INCHES NOMINAL STOCK IN |
| Quantity Per Unit of Measure | 12 PER FOOT |
| Material | STEEL OVERALL |
| Fabrication Method | FORMED |
| Breaking Strength | 80.0 HARNESS GROUP 2 |
| End Type | PLAIN SECOND END |
| End Type | TERMINAL ATTACHMENT FIRST END |
| 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 |
|---|---|
| 900412 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
| Reference | Meaning |
|---|---|
| 500412 | 5/9 Secondary reference Army Weapons Command Attn Amswe-Ree-S |
| SDBX2BB | 5/9 Secondary reference Army, United States Department of the Dba Rock Island Arsenal Jmtc |
NSN 4010-01-255-7979 is a Chain Assembly,single Leg, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 4010, Chain and Wire Rope. Status: active.
NSN 4010-01-255-7979 has 1 manufacturer part number on file: 900412 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
3 possible matches (shared part number, not a government interchangeability claim): 5330-01-265-9340, 1630-01-306-1790, 5930-01-340-9972. Verify interchangeability with system specifications before substitution.
Key specifications for 900412: Furnished Items and Quantity: 1 S HOOK; Attachment Style: S HOOK FIRST END; Supplementary Features: REF DATA ASTM A466,CLASS DL AND FED SPEC RR-C-271,TYPE 2,CLASS 2,MATL SIZE 0.072 IN. (1.83 MM) MM; Style Designator: DOUBLE LOOP 1. 12 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.