The Shackle,top, cataloged under National Stock Number 3940-00-272-9987, is classified within Federal Supply Class 3940 (Blocks, Tackle, Rigging, and Slings) of the Materials Handling Equipment group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3940-00-272-9987 |
| Item Name | Shackle,top |
| FSC / FSG | 3940 / 39 — Blocks, Tackle, Rigging, and Slings |
| Status | ACTIVE |
| Reference Number Differentiating Characteristics | FOR SINGLE BLOCKS,7/8 IN. SIZE IN |
| 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 |
|---|---|
| S1801-770375PC27T029 | 5/1 Secondary reference U.S. Government activity |
| S1801-770374PC24 | 3/1 Design control — primary reference U.S. Government activity |
NSN 3940-00-272-9987 is a Shackle,top, classified under FSC 3940, Blocks, Tackle, Rigging, and Slings. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 3940-00-272-9990, 3940-00-272-9991. Verify interchangeability with system specifications before substitution.
Key specifications for 3940-00-272-9987: Reference Number Differentiating Characteristics: FOR SINGLE BLOCKS,7/8 IN. SIZE IN. 1 specification is 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.