The Block,tackle, cataloged under National Stock Number 3940-01-373-2737, is classified within Federal Supply Class 3940 (Blocks, Tackle, Rigging, and Slings) of the Materials Handling Equipment group. The manufacturer of record is The Crosby Group Llc Dba the Crosby Group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 3940-01-373-2737 |
| Primary Part Number | 696243 |
| Item Name | Block,tackle |
| FSC / FSG | 3940 / 39 — Blocks, Tackle, Rigging, and Slings |
| Manufacturer | The Crosby Group Llc Dba the Crosby Group |
| Status | ACTIVE |
| Attachment Style | SIDE SHACKLE IN LINK |
| Becket Type | THIMBLE |
| 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 |
| Becket Quantity | 1 |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 696243 PRIMARY | The Crosby Group Llc Dba the Crosby Group (USA) |
| Reference | Meaning |
|---|---|
| MILB24220TYICL3 SZ8RIG1 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| MIL-B-24220 | 5/9 Secondary reference U.S. Government activity |
NSN 3940-01-373-2737 is a Block,tackle, manufactured by The Crosby Group Llc Dba the Crosby Group, classified under FSC 3940, Blocks, Tackle, Rigging, and Slings. Status: active.
NSN 3940-01-373-2737 has 1 manufacturer part number on file: 696243 (The Crosby Group Llc Dba the Crosby Group).
4 possible matches (shared part number, not a government interchangeability claim): 3940-01-373-2738, 3940-01-386-9355, 3940-01-386-9364. Verify interchangeability with system specifications before substitution.
Key specifications for 696243: Attachment Style: SIDE SHACKLE IN LINK; Becket Type: THIMBLE; Maximum Tackle Diameter Accommodated: 0.875 INCHES IN; Load Rating: 9000.0 POUNDS MAXIMUM LBS. 17 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.