PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

300433Case Assembly,clock

Waltham Clock Co Inc · NSN 6645-00-536-1488 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-00-536-1488 — this item is cataloged by the U.S. Government under National Stock Number 6645-00-536-1488. Primary manufacturer part number: 300433.
Features
  • Case Assembly,clock — FSC 6645
  • 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,clock, cataloged under National Stock Number 6645-00-536-1488, 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 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6645-00-536-1488
Primary Part Number300433
Item NameCase Assembly,clock
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerWaltham Clock Co Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5305-00-054-5650 INTERCHANGEABLE
Screw,machine
5935-00-175-6953300433 INTERCHANGEABLE
Connector Body,plug,electrical
Lucent Technologies Inc Corporate Headquarters
5136-00-239-27643507 INTERCHANGEABLE
Die,thread Cutting
Stanley Tools Div of Stanley Works
5330-01-083-9386 INTERCHANGEABLE
Seal,plain
4820-01-202-773223025 INTERCHANGEABLE
Valve,angle
Tld Ace Corp Div Tld Ace
4320-01-302-2543300433 INTERCHANGEABLE
Parts Kit,hydraulic Pump
Spx Fluid Power
5325-01-567-816930-0433 INTERCHANGEABLE
Ring,retaining
Parker Hannifin Corporation Div Village Marine Tech
8130-01-615-8387300433 INTERCHANGEABLE
Reel,cable
Mastsystem Int'l Oy
5340-01-698-9131300433 INTERCHANGEABLE
Bracket,mounting
Heil Trailer International Llc
6850-01-710-6488 INTERCHANGEABLE
Desiccant,activated
Cross-Reference Index
Part NumberManufacturer
300433 Waltham Clock Co Inc (USA)
23025 Waltham Clock Co Inc (USA)
Related Parts
5305-00-054-5650INTERCHANGEABLE
SCREW,MACHINE
5935-00-175-6953INTERCHANGEABLE
CONNECTOR BODY,PLUG,ELECTRICAL
300433
5136-00-239-2764INTERCHANGEABLE
DIE,THREAD CUTTING
3507
5330-01-083-9386INTERCHANGEABLE
SEAL,PLAIN
4820-01-202-7732INTERCHANGEABLE
VALVE,ANGLE
23025
4320-01-302-2543INTERCHANGEABLE
PARTS KIT,HYDRAULIC PUMP
300433
5325-01-567-8169INTERCHANGEABLE
RING,RETAINING
30-0433
8130-01-615-8387INTERCHANGEABLE
REEL,CABLE
300433
5340-01-698-9131INTERCHANGEABLE
BRACKET,MOUNTING
300433
6850-01-710-6488INTERCHANGEABLE
DESICCANT,ACTIVATED

Frequently Asked Questions

What is NSN 6645-00-536-1488?

NSN 6645-00-536-1488 is a Case Assembly,clock, manufactured by Waltham Clock Co Inc, classified under FSC 6645 (No Item Name Available). Status: active.

What are the part numbers for NSN 6645-00-536-1488?

NSN 6645-00-536-1488 has 2 cross-referenced part numbers: 300433 (Waltham Clock Co Inc), 23025 (Waltham Clock Co Inc).

What NSN replaces 6645-00-536-1488?

There are 10 known substitutes for 6645-00-536-1488: 5305-00-054-5650, 5935-00-175-6953, 5136-00-239-2764 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 300433?

Key specifications for 300433: End Item Identification: WALTHAM PRECISION INSTRUMENTS INCORPORATED MECHANICAL AIRCRAFT CLOCK MODEL A13A2-C. 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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