PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

083Block,tackle

Harken Inc · NSN 3940-01-458-4429 · FSC 3940 · No Item Name Available
Verified by PartsTable
NSN 3940-01-458-4429 — this item is cataloged by the U.S. Government under National Stock Number 3940-01-458-4429. Primary manufacturer part number: 083.
Features
  • Block,tackle — FSC 3940
  • 1 verified cross-reference
  • Primary manufacturer: Harken Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Block,tackle, cataloged under National Stock Number 3940-01-458-4429, is classified within Federal Supply Class 3940 (No Item Name Available) of the Materials Handling Equipment group. The primary manufacturer of record is Harken Inc. This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN3940-01-458-4429
Primary Part Number083
Item NameBlock,tackle
FSC / FSG3940 / 39 — No Item Name Available
ManufacturerHarken Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
8030-00-081-2330 INTERCHANGEABLE
Sealing Compound
4130-00-572-4709 INTERCHANGEABLE
Filter-Drier,refrigerant
5120-01-256-9198 INTERCHANGEABLE
Inserter,seal
Cross-Reference Index
Part NumberManufacturer
083 PRIMARY Harken Inc (USA)
Related Parts
8030-00-081-2330INTERCHANGEABLE
SEALING COMPOUND
4130-00-572-4709INTERCHANGEABLE
FILTER-DRIER,REFRIGERANT
5120-01-256-9198INTERCHANGEABLE
INSERTER,SEAL

Frequently Asked Questions

What is NSN 3940-01-458-4429?

NSN 3940-01-458-4429 is a Block,tackle, manufactured by Harken Inc, classified under FSC 3940 (No Item Name Available). Status: active.

What are the part numbers for NSN 3940-01-458-4429?

NSN 3940-01-458-4429 has 1 cross-referenced part number: 083 (Harken Inc).

What NSN replaces 3940-01-458-4429?

There are 3 known substitutes for 3940-01-458-4429: 8030-00-081-2330, 4130-00-572-4709, 5120-01-256-9198. Verify interchangeability with system specifications before substitution.

What are the specifications of 083?

Key specifications for 083: End Item Identification: USED ON SAILBOAT. 1 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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