PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

200880Jewel Assembly

Waltham Aircraft Clock Corp · NSN 6645-00-536-1501 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-00-536-1501 — this item is cataloged by the U.S. Government under National Stock Number 6645-00-536-1501. Primary manufacturer part number: 200880.
Features
  • Jewel Assembly — FSC 6645
  • 3 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 Jewel Assembly, cataloged under National Stock Number 6645-00-536-1501, 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 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6645-00-536-1501
Primary Part Number200880
Item NameJewel Assembly
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerWaltham Aircraft Clock Corp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5305-00-054-6657 INTERCHANGEABLE
Screw,machine
5136-00-239-2770400104 INTERCHANGEABLE
Die,thread Cutting
Greenfield Industries Inc
1650-00-758-7985 INTERCHANGEABLE
Collar,piston
4220-01-241-0936200-880 INTERCHANGEABLE
Band,snap Holder
Biomarine Inc
Cross-Reference Index
Part NumberManufacturer
200880 PRIMARY Waltham Aircraft Clock Corp (USA)
23049 Waltham Clock Co Inc (USA)
200880 Waltham Clock Co Inc (USA)
Related Parts
5305-00-054-6657INTERCHANGEABLE
SCREW,MACHINE
5136-00-239-2770INTERCHANGEABLE
DIE,THREAD CUTTING
400104
1650-00-758-7985INTERCHANGEABLE
COLLAR,PISTON
4220-01-241-0936INTERCHANGEABLE
BAND,SNAP HOLDER
200-880

Frequently Asked Questions

What is NSN 6645-00-536-1501?

NSN 6645-00-536-1501 is a Jewel Assembly, manufactured by Waltham Aircraft Clock Corp, classified under FSC 6645 (No Item Name Available). Status: active.

What are the part numbers for NSN 6645-00-536-1501?

NSN 6645-00-536-1501 has 3 cross-referenced part numbers: 200880 (Waltham Aircraft Clock Corp), 23049 (Waltham Clock Co Inc), 200880 (Waltham Clock Co Inc).

What NSN replaces 6645-00-536-1501?

There are 4 known substitutes for 6645-00-536-1501: 5305-00-054-6657, 5136-00-239-2770, 1650-00-758-7985 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 200880?

Key specifications for 200880: End Item Identification: NHA CLOCK,AIRCRAFT,MECHANICAL. 1 total characteristics are documented in the Federal Logistics Information System.

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