PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

300519Plate Assy,pillar

Waltham Aircraft Clock Corp · NSN 6645-00-535-4374 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-00-535-4374 — this item is cataloged by the U.S. Government under National Stock Number 6645-00-535-4374. Primary manufacturer part number: 300519.
Features
  • Plate Assy,pillar — FSC 6645
  • 5 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 Plate Assy,pillar, cataloged under National Stock Number 6645-00-535-4374, 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 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NamePlate Assy,pillar
FSC / FSG6645 — No Item Name Available (FSG 66)
ManufacturersWaltham Aircraft Clock Corp (CAGE 0Y4A4); Waltham Clock Co Inc (CAGE 79300)
Technical Specifications
ParameterValue
NSN6645-00-535-4374
Primary Part Number300519
Item NamePlate Assy,pillar
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerWaltham Aircraft Clock Corp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-00-054-5636 INTERCHANGEABLE
Screw,machine
5330-00-066-220623001 INTERCHANGEABLE
Packing,preformed
Curtiss-Wright Electro-Mechanical Corporation Div Epd
5355-00-160-6096SCB105817 INTERCHANGEABLE
Knob
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6850-00-281-183723001 INTERCHANGEABLE
Desiccant,activated
W.a. Hammond Drierite Co, Limited
5961-00-436-3948 INTERCHANGEABLE
Semiconductor Device,diode
5935-00-552-7660REB49028 INTERCHANGEABLE
Connector,receptacle,electrical
Naval Ship Systems Command
5945-01-008-4674230-01 INTERCHANGEABLE
Relay,electromagnetic
Hose-Mccann Telephone Co, Inc
4730-01-060-99143005-19 INTERCHANGEABLE
Restrictor,fluid Flow
Pentair Filtration Solutions, Llc
5962-01-124-347423001 INTERCHANGEABLE
Microcircuit
Smiths Aerospace, Inc., Electronic Systems-Grand Rapids
6695-01-216-87762300-1 INTERCHANGEABLE
Transducer,motional Pickup
Phaostron Instrument and Electronic Company
Cross-Reference Index
Part NumberManufacturer
300519 PRIMARY Waltham Aircraft Clock Corp (USA)
300519 Waltham Clock Co Inc (USA)
23001 Waltham Clock Co Inc (USA)
22300889 Waltham Clock Co Inc (USA)
400193 Waltham Clock Co Inc (USA)
Related Parts
5305-00-054-5636INTERCHANGEABLE
SCREW,MACHINE
5330-00-066-2206INTERCHANGEABLE
PACKING,PREFORMED
23001
5355-00-160-6096INTERCHANGEABLE
KNOB
SCB105817
6850-00-281-1837INTERCHANGEABLE
DESICCANT,ACTIVATED
23001
5961-00-436-3948INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5935-00-552-7660INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
REB49028
5945-01-008-4674INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
230-01
4730-01-060-9914INTERCHANGEABLE
RESTRICTOR,FLUID FLOW
3005-19
5962-01-124-3474INTERCHANGEABLE
MICROCIRCUIT
23001
6695-01-216-8776INTERCHANGEABLE
TRANSDUCER,MOTIONAL PICKUP
2300-1
4820-01-258-2161INTERCHANGEABLE
VALVE,BLEEDER,HYDRAULIC SYSTEM
SS-4P-6M
2530-01-314-4415INTERCHANGEABLE
WHEEL SEGMENT,PNEUMATIC TIRE
300-519

Frequently Asked Questions

What is NSN 6645-00-535-4374?

NSN 6645-00-535-4374 is a Plate Assy,pillar, manufactured by Waltham Aircraft Clock Corp, classified under FSC 6645 (No Item Name Available). Status: active.

What are the part numbers for NSN 6645-00-535-4374?

NSN 6645-00-535-4374 has 5 cross-referenced part numbers: 300519 (Waltham Aircraft Clock Corp), 300519 (Waltham Clock Co Inc), 23001 (Waltham Clock Co Inc), 22300889 (Waltham Clock Co Inc), 400193 (Waltham Clock Co Inc).

What NSN replaces 6645-00-535-4374?

There are 12 known substitutes for 6645-00-535-4374: 5305-00-054-5636, 5330-00-066-2206, 5355-00-160-6096 and 9 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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