PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-13A-2Clock Paner

Waltham Aircraft Clock Corp · NSN 6645-01-633-0303 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-01-633-0303 — this item is cataloged by the U.S. Government under National Stock Number 6645-01-633-0303. Primary manufacturer part number: A-13A-2.
Features
  • Clock Paner — FSC 6645
  • 1 verified cross-reference
  • Primary manufacturer: Waltham Aircraft Clock Corp
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Clock Paner, cataloged under National Stock Number 6645-01-633-0303, 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 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameClock Paner
FSC / FSG6645 — No Item Name Available (FSG 66)
ManufacturersWaltham Aircraft Clock Corp (CAGE 0Y4A4)
Technical Specifications
ParameterValue
NSN6645-01-633-0303
Primary Part NumberA-13A-2
Item NameClock Paner
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerWaltham Aircraft Clock Corp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6645-00-084-1424 INTERCHANGEABLE
Clock,panel
6645-00-150-6526400202 INTERCHANGEABLE
Clock,panel
Waltham Aircraft Clock Corp
6645-00-880-5927400252 INTERCHANGEABLE
Clock,panel
Waltham Aircraft Clock Corp
6645-01-235-9465 INTERCHANGEABLE
Clock,panel
6645-01-383-7231A13A2 INTERCHANGEABLE
Clock,panel
Wakmann Watch Company Inc
Cross-Reference Index
Part NumberManufacturer
A-13A-2 PRIMARY Waltham Aircraft Clock Corp (USA)
Related Parts
6645-00-084-1424INTERCHANGEABLE
CLOCK,PANEL
6645-00-150-6526INTERCHANGEABLE
CLOCK,PANEL
400202
6645-00-880-5927INTERCHANGEABLE
CLOCK,PANEL
400252
6645-01-235-9465INTERCHANGEABLE
CLOCK,PANEL
6645-01-383-7231INTERCHANGEABLE
CLOCK,PANEL
A13A2

Frequently Asked Questions

What is NSN 6645-01-633-0303?

NSN 6645-01-633-0303 is a Clock Paner, manufactured by Waltham Aircraft Clock Corp, classified under FSC 6645 (No Item Name Available). Status: active.

What are the part numbers for NSN 6645-01-633-0303?

NSN 6645-01-633-0303 has 1 cross-referenced part number: A-13A-2 (Waltham Aircraft Clock Corp).

What NSN replaces 6645-01-633-0303?

There are 5 known substitutes for 6645-01-633-0303: 6645-00-084-1424, 6645-00-150-6526, 6645-00-880-5927 and 2 more. Verify interchangeability with system specifications before substitution.

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