PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-A-59808Block,tackle

Federal Commercial Item Description Promulgated by General Services Administration Washington DC · NSN 3940-00-926-3716 · FSC 3940 · No Item Name Available
Verified by PartsTable
NSN 3940-00-926-3716 — this item is cataloged by the U.S. Government under National Stock Number 3940-00-926-3716. Primary manufacturer part number: A-A-59808.
Features
  • Block,tackle — FSC 3940
  • Sheave Outside Diameter: 4.500 INCHES NOMINAL IN
  • Bearing Type: PLAIN
  • Load Rating: 5100.0 POUNDS MAXIMUM LBS
  • Material: IRON AND STEEL SHELL
  • Material: IRON AND STEEL SHEAVE
  • Nondefinitive Spec/std Data: 2 TYPE
  • Style Designator: ROUND PATTERN
Applications
  • Applications requiring Iron and Steel Shell construction
General Description

The Block,tackle, cataloged under National Stock Number 3940-00-926-3716, is classified within Federal Supply Class 3940 (No Item Name Available) of the Materials Handling Equipment group. The primary manufacturer of record is Federal Commercial Item Description Promulgated by General Services Administration Washington DC. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3940-00-926-3716
Primary Part NumberA-A-59808
Item NameBlock,tackle
FSC / FSG3940 / 39 — No Item Name Available
ManufacturerFederal Commercial Item Description Promulgated by General Services Administration Washington DC
StatusCANCELLED
Sheave Outside Diameter4.500 INCHES NOMINAL IN
Bearing TypePLAIN
Load Rating5100.0 POUNDS MAXIMUM LBS
MaterialIRON AND STEEL SHELL
MaterialIRON AND STEEL SHEAVE
Nondefinitive Spec/std Data2 TYPE
Style DesignatorROUND PATTERN
MaterialSTEEL CENTER PIN
MaterialCOPPER ALLOY BEARING
Sheave Bearing Lubrication MethodSELF-LUBRICATED
Antitoppling DeviceNOT INCLUDED
Tackle Accommodated TypeFIBROUS ROPE
Unable to DecodeUNABLE TO DECODE
Block TypeREGULAR
Maximum Tackle Diameter Accommodated1.000 INCHES IN
Tackle Locking DeviceNOT INCLUDED
Sheave Quantity2
Shell Length8.000 INCHES NOMINAL IN
Becket TypeTHIMBLE
Center Pin Diameter0.625 INCHES NOMINAL IN
Becket Quantity1
Attachment StyleUPSET SCREW PIN ANCHOR SHACKLE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
3940-00-059-5995 INTERCHANGEABLE
Block,tackle
3940-00-059-5996 INTERCHANGEABLE
Block,tackle
3940-00-068-9173 INTERCHANGEABLE
Block,tackle
3940-00-072-0331 INTERCHANGEABLE
Block,tackle
3940-00-879-2128 INTERCHANGEABLE
Block,tackle
3940-00-926-3713 INTERCHANGEABLE
Block,tackle
3940-00-926-3719 INTERCHANGEABLE
Block,tackle
3940-00-950-2955 INTERCHANGEABLE
Block,tackle
Cross-Reference Index
Part NumberManufacturer
A-A-59808 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
AA59808-62D Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
GGG-B-490 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
3940-00-059-5995INTERCHANGEABLE
BLOCK,TACKLE
3940-00-059-5996INTERCHANGEABLE
BLOCK,TACKLE
3940-00-068-9173INTERCHANGEABLE
BLOCK,TACKLE
3940-00-072-0331INTERCHANGEABLE
BLOCK,TACKLE
3940-00-879-2128INTERCHANGEABLE
BLOCK,TACKLE
3940-00-926-3713INTERCHANGEABLE
BLOCK,TACKLE
3940-00-926-3719INTERCHANGEABLE
BLOCK,TACKLE
3940-00-950-2955INTERCHANGEABLE
BLOCK,TACKLE

Frequently Asked Questions

What is NSN 3940-00-926-3716?

NSN 3940-00-926-3716 is a Block,tackle, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 3940 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3940-00-926-3716?

NSN 3940-00-926-3716 has 3 cross-referenced part numbers: A-A-59808 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), AA59808-62D (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), GGG-B-490 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 3940-00-926-3716?

There are 8 known substitutes for 3940-00-926-3716: 3940-00-059-5995, 3940-00-059-5996, 3940-00-068-9173 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A-A-59808?

Key specifications for A-A-59808: Sheave Outside Diameter: 4.500 INCHES NOMINAL IN; Bearing Type: PLAIN; Special Features: SHEAVE THICKNESS AT RIM MIN 1.375 IN. IN; Load Rating: 5100.0 POUNDS MAXIMUM LBS. 23 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3940-00-926-3716 still in active supply?

NSN 3940-00-926-3716 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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