PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

590AMSpeedom

Stewart-Warner Corporation · NSN 6680-00-620-8454 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-00-620-8454 — this item is cataloged by the U.S. Government under National Stock Number 6680-00-620-8454. Primary manufacturer part number: 590AM.
Features
  • Speedom — FSC 6680
  • 11 verified cross-references
  • Primary manufacturer: Stewart-Warner Corporation
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Speedom, cataloged under National Stock Number 6680-00-620-8454, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Stewart-Warner Corporation. This item has 11 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSpeedom
FSC / FSG6680 — No Item Name Available (FSG 66)
ManufacturersStewart-Warner Corporation (CAGE 57733); Allis-Chalmers Corp (CAGE 92392); General Motors Llc Dba General Motors (CAGE 70040); General Motors Llc Dba General Motors Llc (CAGE 7X677); Chrysler Corp Introl Div (CAGE 75300)
Technical Specifications
ParameterValue
NSN6680-00-620-8454
Primary Part Number590AM
Item NameSpeedom
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerStewart-Warner Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
6110-00-152-0277803-1197050 INTERCHANGEABLE
Panel,power Distribution
Naval Ship Systems Command
4210-00-473-597340454 INTERCHANGEABLE
Dual Pull Mechanism
Tyco Fire Products Lp
4820-01-075-5042 INTERCHANGEABLE
Valve,angle
5962-01-079-017840460 INTERCHANGEABLE
Microcircuit,digital
Raytheon Company Div Rmd Strategic
6625-01-301-562240460 INTERCHANGEABLE
Interconnecting Box
Acterna Llc Dba Jdsu
2930-01-564-4004245034 INTERCHANGEABLE
Radiator,engine Coolant
Miller Electric Mfg. Llc
Cross-Reference Index
Part NumberManufacturer
590AM Stewart-Warner Corporation (USA)
D3305 Allis-Chalmers Corp (USA)
590AR Stewart-Warner Corporation (USA)
1567470 General Motors Llc Dba General Motors (USA)
40460 General Motors Llc Dba General Motors Llc (USA)
40460 Chrysler Corp Introl Div (USA)
216588 Allis-Chalmers Corp (USA)
40460 General Motors Corp (USA)
1567470 General Motors Corp (USA)
0216588 Allis-Chalmers Corp (USA)
1567470 General Motors Llc Dba General Motors Llc (USA)
Related Parts
6110-00-152-0277INTERCHANGEABLE
PANEL,POWER DISTRIBUTION
803-1197050
4210-00-473-5973INTERCHANGEABLE
DUAL PULL MECHANISM
40454
4820-01-075-5042INTERCHANGEABLE
VALVE,ANGLE
5962-01-079-0178INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
40460
6625-01-301-5622INTERCHANGEABLE
INTERCONNECTING BOX
40460
2930-01-564-4004INTERCHANGEABLE
RADIATOR,ENGINE COOLANT
245034

Frequently Asked Questions

What is NSN 6680-00-620-8454?

NSN 6680-00-620-8454 is a Speedom, manufactured by Stewart-Warner Corporation, classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-00-620-8454?

NSN 6680-00-620-8454 has 11 cross-referenced part numbers: 590AM (Stewart-Warner Corporation), D3305 (Allis-Chalmers Corp), 590AR (Stewart-Warner Corporation), 1567470 (General Motors Llc Dba General Motors), 40460 (General Motors Llc Dba General Motors Llc) and 6 more.

What NSN replaces 6680-00-620-8454?

There are 6 known substitutes for 6680-00-620-8454: 6110-00-152-0277, 4210-00-473-5973, 4820-01-075-5042 and 3 more. Verify interchangeability with system specifications before substitution.

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