PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

22053Dome Assembly,aircr

Waltham Clock Co Inc · NSN 6645-00-144-4545 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-00-144-4545 — this item is cataloged by the U.S. Government under National Stock Number 6645-00-144-4545. Primary manufacturer part number: 22053.
Features
  • Dome Assembly,aircr — FSC 6645
  • 1 verified cross-reference
  • Primary manufacturer: Waltham Clock Co Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Dome Assembly,aircr, cataloged under National Stock Number 6645-00-144-4545, 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 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: Cancelled.

Catalog Facts
Item NameDome Assembly,aircr
FSC / FSG6645 — No Item Name Available (FSG 66)
ManufacturersWaltham Clock Co Inc (CAGE 79300)
Technical Specifications
ParameterValue
NSN6645-00-144-4545
Primary Part Number22053
Item NameDome Assembly,aircr
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerWaltham Clock Co Inc
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
6520-00-000-0071 INTERCHANGEABLE
Excavator,dental
5950-00-088-172010106065-21 INTERCHANGEABLE
Coil,radio Frequency
Us Army Aviation and Missile Command
5315-00-282-150122053 INTERCHANGEABLE
Pin,straight,headless
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
6625-00-542-1394 INTERCHANGEABLE
Ammeter
2995-00-909-120922053 INTERCHANGEABLE
Plate,piston
United Technologies Corp Hamilton Sundstrand Corp
Cross-Reference Index
Part NumberManufacturer
22053 Waltham Clock Co Inc (USA)
Related Parts
6520-00-000-0071INTERCHANGEABLE
EXCAVATOR,DENTAL
5950-00-088-1720INTERCHANGEABLE
COIL,RADIO FREQUENCY
10106065-21
5315-00-282-1501INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
22053
6625-00-542-1394INTERCHANGEABLE
AMMETER
2995-00-909-1209INTERCHANGEABLE
PLATE,PISTON
22053

Frequently Asked Questions

What is NSN 6645-00-144-4545?

NSN 6645-00-144-4545 is a Dome Assembly,aircr, manufactured by Waltham Clock Co Inc, classified under FSC 6645 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6645-00-144-4545?

NSN 6645-00-144-4545 has 1 cross-referenced part number: 22053 (Waltham Clock Co Inc).

What NSN replaces 6645-00-144-4545?

There are 5 known substitutes for 6645-00-144-4545: 6520-00-000-0071, 5950-00-088-1720, 5315-00-282-1501 and 2 more. Verify interchangeability with system specifications before substitution.

Is NSN 6645-00-144-4545 still in active supply?

NSN 6645-00-144-4545 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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