The Adapter,hoisting, cataloged under National Stock Number 3940-01-421-3688, is classified within Federal Supply Class 3940 (Blocks, Tackle, Rigging, and Slings) of the Materials Handling Equipment group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3940-01-421-3688 |
| Item Name | Adapter,hoisting |
| FSC / FSG | 3940 / 39 — Blocks, Tackle, Rigging, and Slings |
| Status | ACTIVE |
| Usage Design | WEAPONS SYSTEM COMPONENT |
| Overall Diameter | 1.985 INCHES MINIMUM AND 2.015 INCHES MAXIMUM IN |
| Material | STEEL |
| Attachment Method | HOLE |
| 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 |
|---|---|
| 525C977-H01 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
| 525C977-H01 | 3/2 Design control — primary reference U.S. Government activity |
| 1135E48 FIND NO 22 | 5/1 Secondary reference U.S. Government activity |
NSN 3940-01-421-3688 is a Adapter,hoisting, classified under FSC 3940, Blocks, Tackle, Rigging, and Slings. Status: active.
Key specifications for 3940-01-421-3688: Usage Design: WEAPONS SYSTEM COMPONENT; Overall Diameter: 1.985 INCHES MINIMUM AND 2.015 INCHES MAXIMUM IN; Overall Length: 0.600 INCHES NOMINAL IN; Special Features: SLING ADAPTER. 4 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.