PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

91810Timer,sequential

L3harris Technologies, Inc Div Space & Airborne Systems · NSN 6645-00-943-9063 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-00-943-9063 — this item is cataloged by the U.S. Government under National Stock Number 6645-00-943-9063. Primary manufacturer part number: 91810.
Features
  • Timer,sequential — FSC 6645
  • Interval Expiration Signalling Device: NOT INCLUDED
  • Automatic Electric Circuit Control Switch: NOT INCLUDED
  • FSC Application Data: TIME MEASURING INSTRUMENTS
  • Independently Operated Clock: NOT INCLUDED
  • Timer Type: ANY ACCEPTABLE
  • 1 verified cross-reference
  • Primary manufacturer: L3harris Technologies, Inc Div Space & Airborne Systems
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Timer,sequential, cataloged under National Stock Number 6645-00-943-9063, is classified within Federal Supply Class 6645 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is L3harris Technologies, Inc Div Space & Airborne Systems. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6645-00-943-9063
Primary Part Number91810
Item NameTimer,sequential
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerL3harris Technologies, Inc Div Space & Airborne Systems
StatusACTIVE
Interval Expiration Signalling DeviceNOT INCLUDED
Automatic Electric Circuit Control SwitchNOT INCLUDED
FSC Application DataTIME MEASURING INSTRUMENTS
Independently Operated ClockNOT INCLUDED
Timer TypeANY ACCEPTABLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5133-00-189-9255 INTERCHANGEABLE
Drill,twist
4730-00-278-429480594 INTERCHANGEABLE
Elbow,pipe
Lawson Products, Inc.
5905-01-077-9703311-1559-00 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
Tektronix, Inc.
4920-01-299-520091810 INTERCHANGEABLE
Test Program Set
Textron Systems Corporation Dba Textron Systems Corp
1005-01-449-9257IP-918-10 INTERCHANGEABLE
Patch,small Cal.
Otis Products, Inc. Dba Otis Technology
Cross-Reference Index
Part NumberManufacturer
91810 PRIMARY L3harris Technologies, Inc Div Space & Airborne Systems (USA)
Related Parts
5133-00-189-9255INTERCHANGEABLE
DRILL,TWIST
4730-00-278-4294INTERCHANGEABLE
ELBOW,PIPE
80594
5905-01-077-9703INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
311-1559-00
4920-01-299-5200INTERCHANGEABLE
TEST PROGRAM SET
91810
1005-01-449-9257INTERCHANGEABLE
PATCH,SMALL CAL.
IP-918-10

Frequently Asked Questions

What is NSN 6645-00-943-9063?

NSN 6645-00-943-9063 is a Timer,sequential, manufactured by L3harris Technologies, Inc Div Space & Airborne Systems, classified under FSC 6645 (No Item Name Available). Status: active.

What are the part numbers for NSN 6645-00-943-9063?

NSN 6645-00-943-9063 has 1 cross-referenced part number: 91810 (L3harris Technologies, Inc Div Space & Airborne Systems).

What NSN replaces 6645-00-943-9063?

There are 5 known substitutes for 6645-00-943-9063: 5133-00-189-9255, 4730-00-278-4294, 5905-01-077-9703 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 91810?

Key specifications for 91810: Interval Expiration Signalling Device: NOT INCLUDED; Overall Height: 1.000 INCHES NOMINAL IN; Overall Width: 7.687 INCHES NOMINAL IN; Automatic Electric Circuit Control Switch: NOT INCLUDED. 8 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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