PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AT1668Fixture,aircraft Maintenance

Triumph Engine Control Systems Llc · NSN 4920-00-651-3952 · FSC 4920 · No Item Name Available
Verified by PartsTable
NSN 4920-00-651-3952 — this item is cataloged by the U.S. Government under National Stock Number 4920-00-651-3952. Primary manufacturer part number: AT1668.
Features
  • Fixture,aircraft Maintenance — FSC 4920
  • 2 verified cross-references
  • Primary manufacturer: Triumph Engine Control Systems Llc
Applications
  • Maintenance depot operations
  • Field repair and servicing
  • Vehicle maintenance facilities
General Description

The Fixture,aircraft Maintenance, cataloged under National Stock Number 4920-00-651-3952, is classified within Federal Supply Class 4920 (No Item Name Available) of the Maintenance and Repair Shop Equipment group. The primary manufacturer of record is Triumph Engine Control Systems Llc. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4920-00-651-3952
Primary Part NumberAT1668
Item NameFixture,aircraft Maintenance
FSC / FSG4920 / 49 — No Item Name Available
ManufacturerTriumph Engine Control Systems Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5950-01-028-6693SM-B-542572 INTERCHANGEABLE
Transformer,audio Frequency
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
Cross-Reference Index
Part NumberManufacturer
AT1668 PRIMARY Triumph Engine Control Systems Llc (USA)
AT1668 Colt Industries Inc Holley Automotive Div (USA)
Related Parts
5950-01-028-6693INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
SM-B-542572

Frequently Asked Questions

What is NSN 4920-00-651-3952?

NSN 4920-00-651-3952 is a Fixture,aircraft Maintenance, manufactured by Triumph Engine Control Systems Llc, classified under FSC 4920 (No Item Name Available). Status: active.

What are the part numbers for NSN 4920-00-651-3952?

NSN 4920-00-651-3952 has 2 cross-referenced part numbers: AT1668 (Triumph Engine Control Systems Llc), AT1668 (Colt Industries Inc Holley Automotive Div).

What NSN replaces 4920-00-651-3952?

There is 1 known substitute for 4920-00-651-3952: 5950-01-028-6693. Verify interchangeability with system specifications before substitution.

What are the specifications of AT1668?

Key specifications for AT1668: Special Features: COMPANY ITEM NAME-STAND, CHECKING FIXTURE. 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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