The Block,tackle, cataloged under National Stock Number 3940-01-228-9612, 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and Slings) of the Materials Handling Equipment group. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Block,tackle |
| FSC / FSG | 3940 — Blocks, Tackle, Rigging, and Slings (FSG 39) |
| Parameter | Value |
|---|---|
| NSN | 3940-01-228-9612 |
| 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 |
|---|---|
| 521-478864 ITEM 180 | 5/9 Secondary reference U.S. Government activity |
| 87917-9901 ITEM 180 | 5/9 Secondary reference U.S. Government activity |
| 4788614-0180 | 3/2 Design control — primary reference U.S. Government activity |
| 850-0342 | C/1 Advisory reference — outside the item-of-supply concept Western Reserve Electronics Inc |
| 404 4 TON | 5/9 Secondary reference Crosby Group Inc the Mckissick Plant Div |
NSN 3940-01-228-9612 is a Block,tackle, classified under FSC 3940, Blocks, Tackle, Rigging, and Slings. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5210-01-560-3409. 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.