PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21C1533-026Indicator,electrical Tachometer

General Electric Company · NSN 6620-00-925-7767 · FSC 6620 · No Item Name Available
Verified by PartsTable
NSN 6620-00-925-7767 — this item is cataloged by the U.S. Government under National Stock Number 6620-00-925-7767. Primary manufacturer part number: 21C1533-026.
Features
  • Indicator,electrical Tachometer — FSC 6620
  • 4 verified cross-references
  • Primary manufacturer: General Electric Company
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Indicator,electrical Tachometer, cataloged under National Stock Number 6620-00-925-7767, is classified within Federal Supply Class 6620 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is General Electric Company. This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameIndicator,electrical Tachometer
FSC / FSG6620 — No Item Name Available (FSG 66)
ManufacturersGeneral Electric Company (CAGE 07482); Gilmore Industries Inc (CAGE 98202)
Technical Specifications
ParameterValue
NSN6620-00-925-7767
Primary Part Number21C1533-026
Item NameIndicator,electrical Tachometer
FSC / FSG6620 / 66 — No Item Name Available
ManufacturerGeneral Electric Company
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5945-00-052-698810374 INTERCHANGEABLE
Flasher,thermal
Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc
5935-00-149-2857491664 INTERCHANGEABLE
Connector,receptacle,electrical
Naval Ship Systems Command
9390-00-706-12787061278 INTERCHANGEABLE
Bellows,protection
U S Army Tank Automotive Command Amsta-Im-Mm
5845-00-969-98674831 INTERCHANGEABLE
Drive,shaft
Eaton Aerospace, Llc Dba Jackson South
6115-01-288-4959 INTERCHANGEABLE
Generator,alternating Current
6685-01-385-39624831 INTERCHANGEABLE
Probe,humidity-Temperature
Newport Scientific Inc Hygrodynamic Products Div
5315-01-498-52224831 INTERCHANGEABLE
Pin,straight,headed
Amw Cuyuna Engine Co. Inc Dba Two Stroke International
Cross-Reference Index
Part NumberManufacturer
21C1533-026 General Electric Company (USA)
483-1 Gilmore Industries Inc (USA)
334 Gilmore Industries Inc (USA)
B10374 Gilmore Industries Inc (USA)
Related Parts
5945-00-052-6988INTERCHANGEABLE
FLASHER,THERMAL
10374
5935-00-149-2857INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
491664
9390-00-706-1278INTERCHANGEABLE
BELLOWS,PROTECTION
7061278
5845-00-969-9867INTERCHANGEABLE
DRIVE,SHAFT
4831
6115-01-288-4959INTERCHANGEABLE
GENERATOR,ALTERNATING CURRENT
6685-01-385-3962INTERCHANGEABLE
PROBE,HUMIDITY-TEMPERATURE
4831
5315-01-498-5222INTERCHANGEABLE
PIN,STRAIGHT,HEADED
4831

Frequently Asked Questions

What is NSN 6620-00-925-7767?

NSN 6620-00-925-7767 is a Indicator,electrical Tachometer, manufactured by General Electric Company, classified under FSC 6620 (No Item Name Available). Status: active.

What are the part numbers for NSN 6620-00-925-7767?

NSN 6620-00-925-7767 has 4 cross-referenced part numbers: 21C1533-026 (General Electric Company), 483-1 (Gilmore Industries Inc), 334 (Gilmore Industries Inc), B10374 (Gilmore Industries Inc).

What NSN replaces 6620-00-925-7767?

There are 7 known substitutes for 6620-00-925-7767: 5945-00-052-6988, 5935-00-149-2857, 9390-00-706-1278 and 4 more. Verify interchangeability with system specifications before substitution.

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