PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

400235Case Assembly

Waltham Clock Co Inc · NSN 6645-00-083-6642 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-00-083-6642 — this item is cataloged by the U.S. Government under National Stock Number 6645-00-083-6642. Primary manufacturer part number: 400235.
Features
  • Case Assembly — FSC 6645
  • General Characteristics Item Description: W/BEZEL; LIGHTING; CONNECTOR; WIND AND SET ARBORS; LESS CRYSTAL
  • 2 verified cross-references
  • Primary manufacturer: Waltham Clock Co Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Case Assembly, cataloged under National Stock Number 6645-00-083-6642, 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. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references 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.

Technical Specifications
ParameterValue
NSN6645-00-083-6642
Primary Part Number400235
Item NameCase Assembly
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerWaltham Clock Co Inc
StatusACTIVE
General Characteristics Item DescriptionW/BEZEL; LIGHTING; CONNECTOR; WIND AND SET ARBORS; LESS CRYSTAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5930-00-259-4646 INTERCHANGEABLE
Switch,rotary
6105-00-655-2522802021-017 INTERCHANGEABLE
Motor,alternating Current
Reliance Electric Co
1650-00-955-1569400235 INTERCHANGEABLE
Parts Kit,turbine Overhaul
Triumph Thermal Systems - Maryland, Inc.
3120-01-191-2873400235 INTERCHANGEABLE
Bushing
Racine Tool and Machine Co Div of Burge Machine Inc
6695-01-442-2376 INTERCHANGEABLE
Panel,indicator
6515-01-499-6656400.335 INTERCHANGEABLE
Screw,cortex,mandibular
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
5945-01-543-953620-0373 INTERCHANGEABLE
Relay,overhead
Parker Hannifin Corporation Div Village Marine Tech
Cross-Reference Index
Part NumberManufacturer
400235 Waltham Clock Co Inc (USA)
200373 Waltham Clock Co Inc (USA)
Related Parts
5930-00-259-4646INTERCHANGEABLE
SWITCH,ROTARY
6105-00-655-2522INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
802021-017
1650-00-955-1569INTERCHANGEABLE
PARTS KIT,TURBINE OVERHAUL
400235
3120-01-191-2873INTERCHANGEABLE
BUSHING
400235
6695-01-442-2376INTERCHANGEABLE
PANEL,INDICATOR
6515-01-499-6656INTERCHANGEABLE
SCREW,CORTEX,MANDIBULAR
400.335
5945-01-543-9536INTERCHANGEABLE
RELAY,OVERHEAD
20-0373

Frequently Asked Questions

What is NSN 6645-00-083-6642?

NSN 6645-00-083-6642 is a Case Assembly, manufactured by Waltham Clock Co Inc, classified under FSC 6645 (No Item Name Available). Status: active.

What are the part numbers for NSN 6645-00-083-6642?

NSN 6645-00-083-6642 has 2 cross-referenced part numbers: 400235 (Waltham Clock Co Inc), 200373 (Waltham Clock Co Inc).

What NSN replaces 6645-00-083-6642?

There are 7 known substitutes for 6645-00-083-6642: 5930-00-259-4646, 6105-00-655-2522, 1650-00-955-1569 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 400235?

Key specifications for 400235: General Characteristics Item Description: W/BEZEL; LIGHTING; CONNECTOR; WIND AND SET ARBORS; LESS CRYSTAL. 1 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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