PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

22803Hand-Sweep Second

Waltham Clock Co Inc · NSN 6645-00-487-8027 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-00-487-8027 — this item is cataloged by the U.S. Government under National Stock Number 6645-00-487-8027. Primary manufacturer part number: 22803.
Features
  • Hand-Sweep Second — 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 Hand-Sweep Second, cataloged under National Stock Number 6645-00-487-8027, 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameHand-Sweep Second
FSC / FSG6645 — No Item Name Available (FSG 66)
ManufacturersWaltham Clock Co Inc (CAGE 79300)
Technical Specifications
ParameterValue
NSN6645-00-487-8027
Primary Part Number22803
Item NameHand-Sweep Second
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerWaltham Clock Co Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5110-00-222-2117 INTERCHANGEABLE
Chisel,half Round Nose,hand
2805-00-306-503222803 INTERCHANGEABLE
Coil,heater,oil Pan
Briggs and Stratton Corp
4720-01-047-5986NW22803 INTERCHANGEABLE
Hose,preformed
Tld Wollard Llc
7035-01-136-688322803 INTERCHANGEABLE
Decommutator,signal
Smiths Aerospace, Inc., Electronic Systems-Grand Rapids
Cross-Reference Index
Part NumberManufacturer
22803 Waltham Clock Co Inc (USA)
Related Parts
5110-00-222-2117INTERCHANGEABLE
CHISEL,HALF ROUND NOSE,HAND
2805-00-306-5032INTERCHANGEABLE
COIL,HEATER,OIL PAN
22803
4720-01-047-5986INTERCHANGEABLE
HOSE,PREFORMED
NW22803
7035-01-136-6883INTERCHANGEABLE
DECOMMUTATOR,SIGNAL
22803

Frequently Asked Questions

What is NSN 6645-00-487-8027?

NSN 6645-00-487-8027 is a Hand-Sweep Second, manufactured by Waltham Clock Co Inc, classified under FSC 6645 (No Item Name Available). Status: active.

What are the part numbers for NSN 6645-00-487-8027?

NSN 6645-00-487-8027 has 1 cross-referenced part number: 22803 (Waltham Clock Co Inc).

What NSN replaces 6645-00-487-8027?

There are 4 known substitutes for 6645-00-487-8027: 5110-00-222-2117, 2805-00-306-5032, 4720-01-047-5986 and 1 more. Verify interchangeability with system specifications before substitution.

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