PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1381773Timer,stop

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 6645-00-171-9639 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-00-171-9639 — this item is cataloged by the U.S. Government under National Stock Number 6645-00-171-9639. Primary manufacturer part number: 1381773.
Features
  • Timer,stop — FSC 6645
  • Hand Color: BLACK
  • Fast Hand Speed: 1 REVOLUTION PER 10 SEC
  • Control Type: SWITCH
  • Illuminated Feature: NOT INCLUDED
  • Luminous Hand: NOT INCLUDED
  • Hand Designation and Quantity: 1 SWEEP SECOND HAND AND 1 SECOND HAND
  • Fast Hand Speed: 1 REVOLUTION PER 10 SEC
Applications
  • Applications requiring Plastic Case construction
General Description

The Timer,stop, cataloged under National Stock Number 6645-00-171-9639, is classified within Federal Supply Class 6645 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6645-00-171-9639
Primary Part Number1381773
Item NameTimer,stop
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Hand ColorBLACK
Fast Hand Speed1 REVOLUTION PER 10 SEC
Control TypeSWITCH
Illuminated FeatureNOT INCLUDED
Luminous HandNOT INCLUDED
Hand Designation and Quantity1 SWEEP SECOND HAND AND 1 SECOND HAND
Fast Hand Speed1 REVOLUTION PER 10 SEC
Dial Background ColorWHITE
Voltage in Volts115.0
MaterialPLASTIC CASE
Luminous NumeralNOT INCLUDED
Time Indicator Total Capacity1000 SEC
Timer TypeELECTRICAL
Hand Designation and Quantity1 SWEEP SECOND HAND AND 1 SECOND HAND
Dial Size3-15/16 IN. DIA IN
Dial Minimum Graduation1 SEC
Reset TypeMANUAL
Operation MethodSYNCHRONOUS MOTOR
Inscription ColorBLACK
Luminous HandNOT INCLUDED
DC Operated ClutchNOT INCLUDED
Dial Size3-15/16 IN. DIA IN
Timer TypeELECTRICAL
Time Indicator Total Capacity1000 SEC
Mounting MethodPANEL
Surface TreatmentSMOOTH FINISH CASE
ColorGREEN
DC Operated ClutchNOT INCLUDED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4730-00-231-3961 INTERCHANGEABLE
Elbow,pipe to Tube
6645-01-240-5499STD-11-2 INTERCHANGEABLE
Timer,stop
Standard Electric Time Corp
Cross-Reference Index
Part NumberManufacturer
S10 Standard Electric Time Corp (USA)
STD-11-2 Applied Technical Systems Inc Dba Ats (USA)
1381773 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
4730-00-231-3961INTERCHANGEABLE
ELBOW,PIPE TO TUBE
6645-01-240-5499INTERCHANGEABLE
TIMER,STOP
STD-11-2

Frequently Asked Questions

What is NSN 6645-00-171-9639?

NSN 6645-00-171-9639 is a Timer,stop, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 6645 (No Item Name Available). Status: active.

What are the part numbers for NSN 6645-00-171-9639?

NSN 6645-00-171-9639 has 3 cross-referenced part numbers: S10 (Standard Electric Time Corp), STD-11-2 (Applied Technical Systems Inc Dba Ats), 1381773 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 6645-00-171-9639?

There are 2 known substitutes for 6645-00-171-9639: 4730-00-231-3961, 6645-01-240-5499. Verify interchangeability with system specifications before substitution.

What are the specifications of 1381773?

Key specifications for 1381773: Hand Color: BLACK; Fast Hand Speed: 1 REVOLUTION PER 10 SEC; Control Type: SWITCH; Illuminated Feature: NOT INCLUDED. 30 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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