The Sling,endless, cataloged under National Stock Number 3940-01-601-9441, is classified within Federal Supply Class 3940 (Blocks, Tackle, Rigging, and Slings) of the Materials Handling Equipment group. The manufacturer of record is I & I Sling, Llc. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Sling,endless |
| FSC / FSG | 3940 — Blocks, Tackle, Rigging, and Slings (FSG 39) |
| Manufacturers | I & I Sling, Llc (CAGE 8D865); Lockheed Martin Corporation Div Rotary and Mission Systems (CAGE 16331) |
| Parameter | Value |
|---|---|
| NSN | 3940-01-601-9441 |
| Primary Part Number | TPXC-1000X3 |
| Item Name | Sling,endless |
| FSC / FSG | 3940 / 39 — Blocks, Tackle, Rigging, and Slings |
| Manufacturer | I & I Sling, Llc |
| Status | ACTIVE |
| 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 |
|---|---|
| TPXC-1000X3 PRIMARY | I & I Sling, Llc (USA) |
| M12D0123-001 | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
| Reference | Meaning |
|---|---|
| TPFXO-1000X3 | 5/9 Secondary reference I & I Sling, Llc |
NSN 3940-01-601-9441 is a Sling,endless, manufactured by I & I Sling, Llc, classified under FSC 3940, Blocks, Tackle, Rigging, and Slings. Status: active.
NSN 3940-01-601-9441 has 2 manufacturer part numbers on file: TPXC-1000X3 (I & I Sling, Llc), M12D0123-001 (Lockheed Martin Corporation Div Rotary and Mission Systems).
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.