The Chain Assembly,single Leg, cataloged under National Stock Number 4010-00-640-9187, is classified within Federal Supply Class 4010 (Chain and Wire Rope) of the Rope, Cable, Chain, and Fittings group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4010-00-640-9187 |
| Item Name | Chain Assembly,single Leg |
| FSC / FSG | 4010 / 40 — Chain and Wire Rope |
| Status | ACTIVE |
| Attachment Style | GRAB HOOK TERMINAL ATTACHMENT FIRST END |
| Attachment Style | SLIP HOOK TERMINAL ATTACHMENT SECOND END |
| Attachment Style | EYE AND LINK SWIVEL FIRST INTERMEDIATE ATTACHMENT |
| Style Designator | PROOF COIL |
| Diameter | 0.281 INCHES NOMINAL STOCK IN |
| Safe Operating Load Rating | 1250.000 POUNDS NOMINAL LBS |
| First End to First Fixed Intermediate Attachment Distance | 96.000 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | 1 TYPE AND 4 CLASS |
| Material | STEEL ALL ATTACHMENTS |
| Material | STEEL CHAIN |
| Breaking Strength | ERR-060 |
| End Type | TERMINAL ATTACHMENT CHAIN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| RR-C-271 TY1CL4 | 5/1 Secondary reference U.S. Government activity |
| RR-C-271 | 4/1 Identification reference U.S. Government activity |
| RR-C-271 TY1GRCCL4 | 5/9 Secondary reference U.S. Government activity |
NSN 4010-00-640-9187 is a Chain Assembly,single Leg, classified under FSC 4010, Chain and Wire Rope. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3940-01-110-4432. Verify interchangeability with system specifications before substitution.
Key specifications for 4010-00-640-9187: Attachment Style: GRAB HOOK TERMINAL ATTACHMENT FIRST END; Attachment Style: SLIP HOOK TERMINAL ATTACHMENT SECOND END; Attachment Style: EYE AND LINK SWIVEL FIRST INTERMEDIATE ATTACHMENT; Style Designator: PROOF COIL. 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.