PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20992Clock,wall

The Chelsea Clock Llc · NSN 6645-01-586-4337 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-01-586-4337 — this item is cataloged by the U.S. Government under National Stock Number 6645-01-586-4337. Primary manufacturer part number: 20992.
Features
  • Clock,wall — FSC 6645
  • Dial Quantity: 1
  • Second Hand Type: SWEEP
  • Material: PLASTIC POLYAMIDE NYLON CASE
  • Shape: ROUND
  • Movement Type: ELECTRICAL
  • 1 verified cross-reference
  • Primary manufacturer: The Chelsea Clock Llc
Applications
  • Applications requiring Plastic Polyamide Nylon Case construction
General Description

The Clock,wall, cataloged under National Stock Number 6645-01-586-4337, is classified within Federal Supply Class 6645 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is The Chelsea Clock Llc. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6645-01-586-4337
Primary Part Number20992
Item NameClock,wall
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerThe Chelsea Clock Llc
StatusACTIVE
Dial Quantity1
Second Hand TypeSWEEP
MaterialPLASTIC POLYAMIDE NYLON CASE
ShapeROUND
Movement TypeELECTRICAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5930-00-242-8438X665 INTERCHANGEABLE
Switch,toggle
Meggitt (new Hampshire), Inc
5325-00-527-46721259246-30 INTERCHANGEABLE
Eyelet,metallic
Honeywell Intl Inc Defense Avionics Systems
5826-00-762-030520992 INTERCHANGEABLE
Tuned Circuit Assy
Torotel, Inc. Div Torotel Products, Inc.
5910-00-920-3879020099-002 INTERCHANGEABLE
Capacitor,fixed,metallized,paper
Asco Power Services Inc Dba Asco Emergency Power Maintenance Incorporated
7510-01-251-2097 INTERCHANGEABLE
Binder,loose-Leaf
5310-01-261-285720992 INTERCHANGEABLE
Washer,spring Tension
Ciba Corning Diagnostics Corp a Joint Venture
5120-01-346-144120992 INTERCHANGEABLE
Remover,shut Off Cam
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
Cross-Reference Index
Part NumberManufacturer
20992 PRIMARY The Chelsea Clock Llc (USA)
Related Parts
5930-00-242-8438INTERCHANGEABLE
SWITCH,TOGGLE
X665
5325-00-527-4672INTERCHANGEABLE
EYELET,METALLIC
1259246-30
5826-00-762-0305INTERCHANGEABLE
TUNED CIRCUIT ASSY
20992
5910-00-920-3879INTERCHANGEABLE
CAPACITOR,FIXED,METALLIZED,PAPER
020099-002
7510-01-251-2097INTERCHANGEABLE
BINDER,LOOSE-LEAF
5310-01-261-2857INTERCHANGEABLE
WASHER,SPRING TENSION
20992
5120-01-346-1441INTERCHANGEABLE
REMOVER,SHUT OFF CAM
20992

Frequently Asked Questions

What is NSN 6645-01-586-4337?

NSN 6645-01-586-4337 is a Clock,wall, manufactured by The Chelsea Clock Llc, classified under FSC 6645 (No Item Name Available). Status: active.

What are the part numbers for NSN 6645-01-586-4337?

NSN 6645-01-586-4337 has 1 cross-referenced part number: 20992 (The Chelsea Clock Llc).

What NSN replaces 6645-01-586-4337?

There are 7 known substitutes for 6645-01-586-4337: 5930-00-242-8438, 5325-00-527-4672, 5826-00-762-0305 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20992?

Key specifications for 20992: Dial Quantity: 1; Second Hand Type: SWEEP; Material: PLASTIC POLYAMIDE NYLON CASE; Shape: ROUND. 6 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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