The Block,tackle, cataloged under National Stock Number 3940-01-391-1848, 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 16 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3940-01-391-1848 |
| Primary Part Number | M8006228 |
| 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 | FLATTED LOOSE SWIVEL SAFETY SNAP HOOK |
| Maximum Tackle Diameter Accommodated | 0.750 INCHES IN |
| Load Rating | 60000.0 POUNDS MAXIMUM LBS |
| Tackle Locking Device | NOT INCLUDED |
| Sheave Outside Diameter | 8.120 INCHES NOMINAL IN |
| Tackle Accommodated Type | WIRE ROPE |
| Block Type | SNATCH |
| Center Pin Diameter | 2.000 INCHES NOMINAL IN |
| Style Designator | PULLEY PATTERN |
| Locking Style | DROP LINK |
| Shell Length | 17.620 INCHES NOMINAL IN |
| Bearing Type | PLAIN |
| Sheave Quantity | 1 |
| Material | STEEL OVERALL |
| Material | COPPER ALLOY BEARING |
| 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 |
|---|---|
| M8006228 PRIMARY | The Crosby Group Llc Dba the Crosby Group (USA) |
| 0FW3912378672-002 | Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc (USA) |
| 0FW3912378672-002 | Amz Alabama Inc. (USA) |
| Reference | Meaning |
|---|---|
| 12378672 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
| M929233B | D/9 Drawing number reference only The Crosby Group Llc Dba the Crosby Group |
| 12378672-002 | 7/2 Vendor item drawing reference U S Army Tank Automotive Command Amsta-Im-Mm |
| 8006228 | 5/9 Secondary reference The Crosby Group Llc Dba the Crosby Group |
NSN 3940-01-391-1848 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 3940-01-391-1848 has 3 manufacturer part numbers on file: M8006228 (The Crosby Group Llc Dba the Crosby Group), 0FW3912378672-002 (Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc), 0FW3912378672-002 (Amz Alabama Inc.).
1 possible match (shared part number, not a government interchangeability claim): 3940-01-499-8729. Verify interchangeability with system specifications before substitution.
Key specifications for M8006228: Attachment Style: FLATTED LOOSE SWIVEL SAFETY SNAP HOOK; Maximum Tackle Diameter Accommodated: 0.750 INCHES IN; Load Rating: 60000.0 POUNDS MAXIMUM LBS; Tackle Locking Device: NOT INCLUDED. 16 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.