The Block,tackle, cataloged under National Stock Number 3940-01-373-2738, is classified within Federal Supply Class 3940 (Blocks, Tackle, Rigging, and Slings) of the Materials Handling Equipment group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 3940-01-373-2738 |
| Item Name | Block,tackle |
| FSC / FSG | 3940 / 39 — Blocks, Tackle, Rigging, and Slings |
| Status | ACTIVE |
| Attachment Style | SIDE SHACKLE IN LINK |
| Maximum Tackle Diameter Accommodated | 0.875 INCHES IN |
| Load Rating | 9000.0 POUNDS MAXIMUM LBS |
| Tackle Locking Device | NOT INCLUDED |
| Sheave Outside Diameter | 4.500 INCHES MINIMUM IN |
| Tackle Accommodated Type | FIBROUS ROPE |
| Block Type | REGULAR |
| Center Pin Diameter | 0.750 INCHES MINIMUM IN |
| Style Designator | OVAL PATTERN |
| Nondefinitive Spec/std Data | 1 TYPE AND 3 CLASS AND 8 SIZE |
| Shell Length | 8.000 INCHES MINIMUM IN |
| Surface Treatment | ZINC OVERALL |
| Sheave Quantity | 3 |
| Material | STEEL OVERALL |
| Antitoppling Device | NOT INCLUDED |
| 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 |
|---|---|
| MILB24220TYICL3 SZ8RIG1W/O BECK | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| MIL-B-24220 | 4/1 Identification reference U.S. Government activity |
NSN 3940-01-373-2738 is a Block,tackle, classified under FSC 3940, Blocks, Tackle, Rigging, and Slings. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 3940-01-386-9355, 3940-01-386-9364, 3940-01-386-9455. Verify interchangeability with system specifications before substitution.
Key specifications for 3940-01-373-2738: Attachment Style: SIDE SHACKLE IN LINK; Maximum Tackle Diameter Accommodated: 0.875 INCHES IN; Load Rating: 9000.0 POUNDS MAXIMUM LBS; Tackle Locking Device: NOT INCLUDED. 15 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.