PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

22301893Bridge Assembly,cen

Waltham Aircraft Clock Corp · NSN 6645-00-536-1478 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-00-536-1478 — this item is cataloged by the U.S. Government under National Stock Number 6645-00-536-1478. Primary manufacturer part number: 22301893.
Features
  • Bridge Assembly,cen — FSC 6645
  • 4 verified cross-references
  • Primary manufacturer: Waltham Aircraft Clock Corp
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Bridge Assembly,cen, cataloged under National Stock Number 6645-00-536-1478, 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 Aircraft Clock Corp. This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameBridge Assembly,cen
FSC / FSG6645 — No Item Name Available (FSG 66)
ManufacturersWaltham Clock Co Inc (CAGE 79300); Waltham Aircraft Clock Corp (CAGE 0Y4A4)
Technical Specifications
ParameterValue
NSN6645-00-536-1478
Primary Part Number22301893
Item NameBridge Assembly,cen
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerWaltham Aircraft Clock Corp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5945-00-174-68982Z7585-112 INTERCHANGEABLE
Relay,electromagnetic
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
3020-00-920-122123009 INTERCHANGEABLE
Gear,bevel
Pitney Bowes Inc.
3455-01-004-1349 INTERCHANGEABLE
Cutter,milling,end
5342-01-122-8469ADB23009 INTERCHANGEABLE
Ring,safety Hoist
Mjt Holdings Llc
5360-01-177-86042V3457 INTERCHANGEABLE
Spring,helical,compression
Caterpillar Inc Div Caterpillar Defense
5360-01-282-93162-300-P5 INTERCHANGEABLE
Spring,helical,extension
Eastern Co Div Eberhard Manufacturing
8030-01-386-4292 INTERCHANGEABLE
Sealing Compound
5360-01-445-62592-300-9 INTERCHANGEABLE
Spring,helical,compression
Bae Systems Land & Armaments L.p.
5220-01-553-683523009 INTERCHANGEABLE
Gauge,throat Erosion
Charles Reed Knight Jr Dba Knight's Armament Company
5995-01-701-7522230-09 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Jabra
Cross-Reference Index
Part NumberManufacturer
23009 Waltham Clock Co Inc (USA)
23009 Waltham Aircraft Clock Corp (USA)
22301893 Waltham Clock Co Inc (USA)
22301893 PRIMARY Waltham Aircraft Clock Corp (USA)
Related Parts
5945-00-174-6898INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
2Z7585-112
3020-00-920-1221INTERCHANGEABLE
GEAR,BEVEL
23009
3455-01-004-1349INTERCHANGEABLE
CUTTER,MILLING,END
5342-01-122-8469INTERCHANGEABLE
RING,SAFETY HOIST
ADB23009
5360-01-177-8604INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
2V3457
5360-01-282-9316INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
2-300-P5
8030-01-386-4292INTERCHANGEABLE
SEALING COMPOUND
5360-01-445-6259INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
2-300-9
5220-01-553-6835INTERCHANGEABLE
GAUGE,THROAT EROSION
23009
5995-01-701-7522INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
230-09

Frequently Asked Questions

What is NSN 6645-00-536-1478?

NSN 6645-00-536-1478 is a Bridge Assembly,cen, manufactured by Waltham Aircraft Clock Corp, classified under FSC 6645 (No Item Name Available). Status: active.

What are the part numbers for NSN 6645-00-536-1478?

NSN 6645-00-536-1478 has 4 cross-referenced part numbers: 23009 (Waltham Clock Co Inc), 23009 (Waltham Aircraft Clock Corp), 22301893 (Waltham Clock Co Inc), 22301893 (Waltham Aircraft Clock Corp).

What NSN replaces 6645-00-536-1478?

There are 10 known substitutes for 6645-00-536-1478: 5945-00-174-6898, 3020-00-920-1221, 3455-01-004-1349 and 7 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com