PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-3994Gear,spur

Iwc Llc Dba Ideal Windlass Company · NSN 3020-01-238-7058 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-01-238-7058 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-238-7058. Primary manufacturer part number: A-3994.
Features
  • Gear,spur — FSC 3020
  • Material: STEEL CORROSION RESISTING OVERALL
  • 5 verified cross-references
  • Primary manufacturer: Iwc Llc Dba Ideal Windlass Company
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-01-238-7058, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Iwc Llc Dba Ideal Windlass Company. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-01-238-7058
Primary Part NumberA-3994
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerIwc Llc Dba Ideal Windlass Company
StatusACTIVE
MaterialSTEEL CORROSION RESISTING OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5985-00-419-537110672282 INTERCHANGEABLE
Attenuator,variable
Us Army Aviation and Missile Command
6810-01-344-0332A-399-4 INTERCHANGEABLE
Butyl Alcohol
Fisher Scientific Co Chemical Mfg Div
Cross-Reference Index
Part NumberManufacturer
EL-263-1 PIECE 64 Iwc Llc Dba Ideal Windlass Company (USA)
3131475 PIECE 64 Naval Ship Systems Command (USA)
CR10M-64 Iwc Llc Dba Ideal Windlass Company (USA)
EL-263-1 Iwc Llc Dba Ideal Windlass Company (USA)
A-3994 PRIMARY Iwc Llc Dba Ideal Windlass Company (USA)
Related Parts
5985-00-419-5371INTERCHANGEABLE
ATTENUATOR,VARIABLE
10672282
6810-01-344-0332INTERCHANGEABLE
BUTYL ALCOHOL
A-399-4

Frequently Asked Questions

What is NSN 3020-01-238-7058?

NSN 3020-01-238-7058 is a Gear,spur, manufactured by Iwc Llc Dba Ideal Windlass Company, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-01-238-7058?

NSN 3020-01-238-7058 has 5 cross-referenced part numbers: EL-263-1 PIECE 64 (Iwc Llc Dba Ideal Windlass Company), 3131475 PIECE 64 (Naval Ship Systems Command), CR10M-64 (Iwc Llc Dba Ideal Windlass Company), EL-263-1 (Iwc Llc Dba Ideal Windlass Company), A-3994 (Iwc Llc Dba Ideal Windlass Company).

What NSN replaces 3020-01-238-7058?

There are 2 known substitutes for 3020-01-238-7058: 5985-00-419-5371, 6810-01-344-0332. Verify interchangeability with system specifications before substitution.

What are the specifications of A-3994?

Key specifications for A-3994: Material: STEEL CORROSION RESISTING OVERALL. 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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