PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A658Insulator

Am General Llc · NSN 2990-00-737-1052 · FSC 2990 · No Item Name Available
Verified by PartsTable
NSN 2990-00-737-1052 — this item is cataloged by the U.S. Government under National Stock Number 2990-00-737-1052. Primary manufacturer part number: A658.
Features
  • Insulator — FSC 2990
  • 4 verified cross-references
  • Primary manufacturer: Am General Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Insulator, cataloged under National Stock Number 2990-00-737-1052, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Am General Llc. This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameInsulator
FSC / FSG2990 — No Item Name Available (FSG 29)
ManufacturersU S Army Tank Automotive Command Amsta-Im-Mm (CAGE 19207); Ford Motor Co Ford Parts and Service Div Government Part Sales (CAGE 23040); Ford Motor Company (CAGE 57526); Am General Llc (CAGE 34623)
Technical Specifications
ParameterValue
NSN2990-00-737-1052
Primary Part NumberA658
Item NameInsulator
FSC / FSG2990 / 29 — No Item Name Available
ManufacturerAm General Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5961-00-477-0439A027078162 INTERCHANGEABLE
Semiconductor Device Assembly
Prestolite Electric Inc
Cross-Reference Index
Part NumberManufacturer
7371052 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
GPW5283 Ford Motor Co Ford Parts and Service Div Government Part Sales (USA)
GPW5283 Ford Motor Company (USA)
A658 PRIMARY Am General Llc (USA)
Related Parts
5961-00-477-0439INTERCHANGEABLE
SEMICONDUCTOR DEVICE ASSEMBLY
A027078162

Frequently Asked Questions

What is NSN 2990-00-737-1052?

NSN 2990-00-737-1052 is a Insulator, manufactured by Am General Llc, classified under FSC 2990 (No Item Name Available). Status: active.

What are the part numbers for NSN 2990-00-737-1052?

NSN 2990-00-737-1052 has 4 cross-referenced part numbers: 7371052 (U S Army Tank Automotive Command Amsta-Im-Mm), GPW5283 (Ford Motor Co Ford Parts and Service Div Government Part Sales), GPW5283 (Ford Motor Company), A658 (Am General Llc).

What NSN replaces 2990-00-737-1052?

There is 1 known substitute for 2990-00-737-1052: 5961-00-477-0439. Verify interchangeability with system specifications before substitution.

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