PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

P004668Block,tackle

Crosby Group Inc the Mckissick Plant Div · NSN 3940-01-349-1516 · FSC 3940 · No Item Name Available
Verified by PartsTable
NSN 3940-01-349-1516 — this item is cataloged by the U.S. Government under National Stock Number 3940-01-349-1516. Primary manufacturer part number: P004668.
Features
  • Block,tackle — FSC 3940
  • Block Type: REGULAR
  • Sheave Quantity: 1
  • Tackle Accommodated Type: WIRE ROPE
  • Material: IRON OR STEEL SHEAVE
  • Style Designator: HALF-OVAL PATTERN
  • Load Rating: 5000.0 POUNDS MAXIMUM LBS
  • Bearing Type: ROLLER
Applications
  • Applications requiring Iron or Steel Sheave construction
General Description

The Block,tackle, cataloged under National Stock Number 3940-01-349-1516, is classified within Federal Supply Class 3940 (No Item Name Available) of the Materials Handling Equipment group. The primary manufacturer of record is Crosby Group Inc the Mckissick Plant Div. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3940-01-349-1516
Primary Part NumberP004668
Item NameBlock,tackle
FSC / FSG3940 / 39 — No Item Name Available
ManufacturerCrosby Group Inc the Mckissick Plant Div
StatusACTIVE
Block TypeREGULAR
Sheave Quantity1
Tackle Accommodated TypeWIRE ROPE
MaterialIRON OR STEEL SHEAVE
Style DesignatorHALF-OVAL PATTERN
Load Rating5000.0 POUNDS MAXIMUM LBS
Bearing TypeROLLER
Tackle Locking DeviceNOT INCLUDED
Center Pin Diameter0.875 INCHES NOMINAL IN
Shell Length10.750 INCHES NOMINAL IN
Sheave Outside Diameter8.000 INCHES NOMINAL IN
Sheave Bearing Lubrication MethodSELF-LUBRICATED
Antitoppling DeviceNOT INCLUDED
Maximum Tackle Diameter Accommodated0.625 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5920-00-846-4114 INTERCHANGEABLE
Fuseholder,block
3020-01-479-474641528 INTERCHANGEABLE
Gear Rack
Moog Inc. Dba Ampac-Isp Corp
7045-01-562-8998 INTERCHANGEABLE
Disk,flexible
Cross-Reference Index
Part NumberManufacturer
P004668 PRIMARY Crosby Group Inc the Mckissick Plant Div (USA)
4152-8 Mazzella Lifting Technologies, Inc. (USA)
Related Parts
5920-00-846-4114INTERCHANGEABLE
FUSEHOLDER,BLOCK
3020-01-479-4746INTERCHANGEABLE
GEAR RACK
41528
7045-01-562-8998INTERCHANGEABLE
DISK,FLEXIBLE

Frequently Asked Questions

What is NSN 3940-01-349-1516?

NSN 3940-01-349-1516 is a Block,tackle, manufactured by Crosby Group Inc the Mckissick Plant Div, classified under FSC 3940 (No Item Name Available). Status: active.

What are the part numbers for NSN 3940-01-349-1516?

NSN 3940-01-349-1516 has 2 cross-referenced part numbers: P004668 (Crosby Group Inc the Mckissick Plant Div), 4152-8 (Mazzella Lifting Technologies, Inc.).

What NSN replaces 3940-01-349-1516?

There are 3 known substitutes for 3940-01-349-1516: 5920-00-846-4114, 3020-01-479-4746, 7045-01-562-8998. Verify interchangeability with system specifications before substitution.

What are the specifications of P004668?

Key specifications for P004668: Block Type: REGULAR; Sheave Quantity: 1; Tackle Accommodated Type: WIRE ROPE; Material: IRON OR STEEL SHEAVE. 15 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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