The Block,tackle, cataloged under National Stock Number 3940-01-348-4760, is classified within Federal Supply Class 3940 (Blocks, Tackle, Rigging, and Slings) of the Materials Handling Equipment group. The manufacturer of record is Crosby Group Inc the Mckissick Plant Div. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3940-01-348-4760 |
| Primary Part Number | 2-0023-45 |
| Item Name | Block,tackle |
| FSC / FSG | 3940 / 39 — Blocks, Tackle, Rigging, and Slings |
| Manufacturer | Crosby Group Inc the Mckissick Plant Div |
| Status | ACTIVE |
| Tackle Accommodated Type | FIBROUS ROPE |
| Block Type | REGULAR |
| Sheave Quantity | 2 |
| 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 |
|---|---|
| 2-0023-45 PRIMARY | Crosby Group Inc the Mckissick Plant Div (USA) |
| Reference | Meaning |
|---|---|
| 6609866ITEM26 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3940-01-348-4760 is a Block,tackle, manufactured by Crosby Group Inc the Mckissick Plant Div, classified under FSC 3940, Blocks, Tackle, Rigging, and Slings. Status: active.
NSN 3940-01-348-4760 has 1 manufacturer part number on file: 2-0023-45 (Crosby Group Inc the Mckissick Plant Div).
2 possible matches (shared part number, not a government interchangeability claim): 6210-01-384-7096, 7690-01-564-6499. Verify interchangeability with system specifications before substitution.
Key specifications for 2-0023-45: Tackle Accommodated Type: FIBROUS ROPE; Block Type: REGULAR; Special Features: FRONT EYE SAFETY HOOK; WITHOUT BECKET; Sheave Quantity: 2. 3 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.