The Block,tackle, cataloged under National Stock Number 3940-00-295-0495, 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 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3940-00-295-0495 |
| Primary Part Number | SB1023 |
| Item Name | Block,tackle |
| FSC / FSG | 3940 / 39 — Blocks, Tackle, Rigging, and Slings |
| Manufacturer | Crosby Group Inc the Mckissick Plant Div |
| Status | ACTIVE |
| Attachment Style | FRONT EYE FLATTED LOOSE HOOK |
| Maximum Tackle Diameter Accommodated | 0.750 INCHES IN |
| Surface Treatment Document and Classification | CLASS F,TYPE 1 PER DWG 80064/2584542 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Load Rating | 97000.0 POUNDS MAXIMUM LBS |
| Tackle Locking Device | NOT INCLUDED |
| Sheave Outside Diameter | 8.125 INCHES MAXIMUM IN |
| Sheave Outside Diameter | 7.875 INCHES MINIMUM IN |
| Tackle Accommodated Type | WIRE ROPE |
| Block Type | SNATCH |
| Style Designator | OVAL PATTERN |
| Material Document and Classification | SAE 4140 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Shell Length | 11.625 INCHES MINIMUM IN |
| Shell Length | 11.875 INCHES MAXIMUM IN |
| Bearing Type | PLAIN |
| Surface Treatment | ENAMEL OVERALL |
| Sheave Quantity | 1 |
| Material | STEEL COMP 4140 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 |
|---|---|
| SB1023 | Crosby Group Inc the Mckissick Plant Div (USA) |
| Reference | Meaning |
|---|---|
| 2624746 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3940-00-295-0495 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 3940-00-295-0495 has 1 manufacturer part number on file: SB1023 (Crosby Group Inc the Mckissick Plant Div).
Key specifications for SB1023: Attachment Style: FRONT EYE FLATTED LOOSE HOOK; Maximum Tackle Diameter Accommodated: 0.750 INCHES IN; Surface Treatment Document and Classification: CLASS F,TYPE 1 PER DWG 80064/2584542 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Load Rating: 97000.0 POUNDS MAXIMUM LBS. 18 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.