PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

22018Balance,aircraft Cl

Waltham Clock Co Inc · NSN 6645-00-166-6677 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-00-166-6677 — this item is cataloged by the U.S. Government under National Stock Number 6645-00-166-6677. Primary manufacturer part number: 22018.
Features
  • Balance,aircraft Cl — FSC 6645
  • 1 verified cross-reference
  • Primary manufacturer: Waltham Clock Co Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Balance,aircraft Cl, cataloged under National Stock Number 6645-00-166-6677, is classified within Federal Supply Class 6645 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Waltham Clock Co Inc. This item has 1 commercial cross-reference from 1 manufacturer, 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 NameBalance,aircraft Cl
FSC / FSG6645 — No Item Name Available (FSG 66)
ManufacturersWaltham Clock Co Inc (CAGE 79300)
Technical Specifications
ParameterValue
NSN6645-00-166-6677
Primary Part Number22018
Item NameBalance,aircraft Cl
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerWaltham Clock Co Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5360-00-083-4249 INTERCHANGEABLE
Spring,helical,compression
5935-00-163-9505578R696H05 INTERCHANGEABLE
Guide,electrical Connector
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5305-00-282-6232NAS220-18 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
4730-00-348-5619 INTERCHANGEABLE
Plug,tube Repair
5940-00-983-6113 INTERCHANGEABLE
Terminal Board
5330-01-605-063922018 INTERCHANGEABLE
Gasket
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
5845-01-642-866222018 INTERCHANGEABLE
Window,sonar
Naval Air Development Center Warminster Navairsyscom Hq
Cross-Reference Index
Part NumberManufacturer
22018 Waltham Clock Co Inc (USA)
Related Parts
5360-00-083-4249INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5935-00-163-9505INTERCHANGEABLE
GUIDE,ELECTRICAL CONNECTOR
578R696H05
5305-00-282-6232INTERCHANGEABLE
SCREW,MACHINE
NAS220-18
4730-00-348-5619INTERCHANGEABLE
PLUG,TUBE REPAIR
5940-00-983-6113INTERCHANGEABLE
TERMINAL BOARD
5330-01-605-0639INTERCHANGEABLE
GASKET
22018
5845-01-642-8662INTERCHANGEABLE
WINDOW,SONAR
22018

Frequently Asked Questions

What is NSN 6645-00-166-6677?

NSN 6645-00-166-6677 is a Balance,aircraft Cl, manufactured by Waltham Clock Co Inc, classified under FSC 6645 (No Item Name Available). Status: active.

What are the part numbers for NSN 6645-00-166-6677?

NSN 6645-00-166-6677 has 1 cross-referenced part number: 22018 (Waltham Clock Co Inc).

What NSN replaces 6645-00-166-6677?

There are 7 known substitutes for 6645-00-166-6677: 5360-00-083-4249, 5935-00-163-9505, 5305-00-282-6232 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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