The Chain,welded, cataloged under National Stock Number 4010-00-702-5003, is classified within Federal Supply Class 4010 (Chain and Wire Rope) of the Rope, Cable, Chain, and Fittings group. The manufacturer of record is The Crosby Group Llc Dba the Crosby Group. Government technical data includes 9 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4010-00-702-5003 |
| Primary Part Number | SPECTRUM 4 |
| Item Name | Chain,welded |
| FSC / FSG | 4010 / 40 — Chain and Wire Rope |
| Manufacturer | The Crosby Group Llc Dba the Crosby Group |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-P-17545 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | CLOSE LINK |
| Material Document and Classification | QQ-S-630 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 0.281 INCHES NOMINAL STOCK IN |
| Safe Operating Load Rating | 2050.000 POUNDS NOMINAL LBS |
| Nondefinitive Spec/std Data | I TYPE AND C GRADE AND 2 CLASS |
| Surface Treatment | PRIMER OVERALL |
| Material | STEEL OVERALL |
| Breaking Strength | ERR-060 |
| 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 |
|---|---|
| SPECTRUM 4 PRIMARY | The Crosby Group Llc Dba the Crosby Group (USA) |
| Reference | Meaning |
|---|---|
| RR-C-271 | 4/1 Identification reference U.S. Government activity |
| 019-0911 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 6138982-95 | 3/2 Design control — primary reference U.S. Government activity |
| 74027-1 | C/1 Advisory reference — outside the item-of-supply concept Simco Inc |
NSN 4010-00-702-5003 is a Chain,welded, manufactured by The Crosby Group Llc Dba the Crosby Group, classified under FSC 4010, Chain and Wire Rope. Status: active.
NSN 4010-00-702-5003 has 1 manufacturer part number on file: SPECTRUM 4 (The Crosby Group Llc Dba the Crosby Group).
1 possible match (shared part number, not a government interchangeability claim): 2840-01-173-5489. Verify interchangeability with system specifications before substitution.
Key specifications for SPECTRUM 4: Surface Treatment Document and Classification: MIL-P-17545 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Style Designator: CLOSE LINK; Material Document and Classification: QQ-S-630 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Diameter: 0.281 INCHES NOMINAL STOCK IN. 9 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.