Maximum Tackle Diameter Accommodated: 0.375 INCHES IN
Load Rating: 4000.0 POUNDS MAXIMUM LBS
Becket Quantity: 1
Tackle Accommodated Type: WIRE ROPE
Style Designator: PULLEY PATTERN
Identification
NSN: 3940-01-321-1425
NIIN: 013211425
FSC: 3940 — Blocks, Tackle, Rigging, and Slings
FSG: 39 — Materials Handling Equipment
General Description
The Block,tackle, cataloged under National Stock Number 3940-01-321-1425, is classified within Federal Supply Class 3940 (Blocks, Tackle, Rigging, and Slings) of the Materials Handling Equipment group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
3940-01-321-1425
Item Name
Block,tackle
FSC / FSG
3940 / 39 — Blocks, Tackle, Rigging, and Slings
Status
ACTIVE
Attachment Style
ROUND SWIVEL EYE
Becket Type
SWIVEL EYE
Maximum Tackle Diameter Accommodated
0.375 INCHES IN
Load Rating
4000.0 POUNDS MAXIMUM LBS
Becket Quantity
1
Tackle Accommodated Type
WIRE ROPE
Style Designator
PULLEY PATTERN
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
SB2S3BE
3/9Design control — primary reference
U.S. Government activity
No interchangeability data on file.
Other items in FSC 3940 — Blocks, Tackle, Rigging, and Slings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3940-00-000-0169
3940-00-000-0169 · Item name not on file
3940-00-003-0706
BLOCK-WD12IN SNATCH
3940-00-004-3568
3940-00-004-3568 · Item name not on file
3940-00-004-9175
SLING,PALLET
3940-00-005-1366
3940-00-005-1366 · Item name not on file
3940-00-005-1367
3940-00-005-1367 · Item name not on file
3940-00-006-3256
3940-00-006-3256 · Item name not on file
3940-00-007-2801
ADAPTER,HOISTING
Frequently Asked Questions
What is NSN 3940-01-321-1425?
NSN 3940-01-321-1425 is a Block,tackle, classified under FSC 3940, Blocks, Tackle, Rigging, and Slings. Status: active.
What are the specifications of 3940-01-321-1425?
Key specifications for 3940-01-321-1425: Attachment Style: ROUND SWIVEL EYE; Becket Type: SWIVEL EYE; Maximum Tackle Diameter Accommodated: 0.375 INCHES IN; Load Rating: 4000.0 POUNDS MAXIMUM LBS. 7 specifications are documented in the U.S. Government catalog.
Is NSN 3940-01-321-1425 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.