The Block,tackle, cataloged under National Stock Number 3940-01-475-6638, is classified within Federal Supply Class 3940 (Blocks, Tackle, Rigging, and Slings) of the Materials Handling Equipment group. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Block,tackle |
| FSC / FSG | 3940 — Blocks, Tackle, Rigging, and Slings (FSG 39) |
| Parameter | Value |
|---|---|
| NSN | 3940-01-475-6638 |
| Item Name | Block,tackle |
| FSC / FSG | 3940 / 39 — Blocks, Tackle, Rigging, and Slings |
| 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 |
| Reference | Meaning |
|---|---|
| 15662118-1 | 5/2 Secondary reference U.S. Government activity |
| 15661023 FN 7 | 5/2 Secondary reference U.S. Government activity |
| 177203 | 5/9 Secondary reference Crosby Group Inc the Lebus Mfg Div |
| 15661023 FN 7 | 5/9 Secondary reference Gulf Coast Holdings, Inc Dba Unidynamics |
| 15662118-1 | 3/9 Design control — primary reference Gulf Coast Holdings, Inc Dba Unidynamics |
NSN 3940-01-475-6638 is a Block,tackle, classified under FSC 3940, Blocks, Tackle, Rigging, and Slings. Status: active.
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.