The Sling,endless, cataloged under National Stock Number 3940-01-689-4244, is classified within Federal Supply Class 3940 (Blocks, Tackle, Rigging, and Slings) of the Materials Handling Equipment group. The manufacturer of record is Lift-All Company, Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Sling,endless |
| FSC / FSG | 3940 — Blocks, Tackle, Rigging, and Slings (FSG 39) |
| Manufacturers | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (CAGE 30003); Lift-All Company, Inc (CAGE 23755) |
| Parameter | Value |
|---|---|
| NSN | 3940-01-689-4244 |
| Primary Part Number | EN30X4.5 |
| Item Name | Sling,endless |
| FSC / FSG | 3940 / 39 — Blocks, Tackle, Rigging, and Slings |
| Manufacturer | Lift-All Company, Inc |
| 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 |
|---|---|
| 3596AS734-2 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| EN30X4.5 PRIMARY | Lift-All Company, Inc (USA) |
| Reference | Meaning |
|---|---|
| 3596AS734 | 7/2 Vendor item drawing reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 3940-01-689-4244 is a Sling,endless, manufactured by Lift-All Company, Inc, classified under FSC 3940, Blocks, Tackle, Rigging, and Slings. Status: active.
NSN 3940-01-689-4244 has 2 manufacturer part numbers on file: 3596AS734-2 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), EN30X4.5 (Lift-All Company, Inc).
1 possible match (shared part number, not a government interchangeability claim): 3940-01-689-4247. Verify interchangeability with system specifications before substitution.
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.