PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

635-10186KMeter,time Totalizing

Cramer Co Division of Chestnut Group Inc · NSN 6645-01-241-4300 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-01-241-4300 — this item is cataloged by the U.S. Government under National Stock Number 6645-01-241-4300. Primary manufacturer part number: 635-10186K.
Features
  • Meter,time Totalizing — FSC 6645
  • Terminal Type: WIRE LEAD
  • Body Depth: 2.125 INCHES NOMINAL IN
  • Material: PLASTIC CASE
  • Movement Type: ELECTRICAL
  • Flange Height: 2.250 INCHES NOMINAL IN
  • Reset Feature: NOT PROVIDED
  • Unit Type: MOUNTED
Applications
  • Applications requiring Plastic Case construction
General Description

The Meter,time Totalizing, cataloged under National Stock Number 6645-01-241-4300, is classified within Federal Supply Class 6645 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Cramer Co Division of Chestnut Group Inc. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6645-01-241-4300
Primary Part Number635-10186K
Item NameMeter,time Totalizing
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerCramer Co Division of Chestnut Group Inc
StatusACTIVE
Terminal TypeWIRE LEAD
Body Depth2.125 INCHES NOMINAL IN
MaterialPLASTIC CASE
Movement TypeELECTRICAL
Flange Height2.250 INCHES NOMINAL IN
Reset FeatureNOT PROVIDED
Unit TypeMOUNTED
Hermetic ProtectionPROVIDED
Mounting Flange Diameter2.312 INCHES NOMINAL IN
Mounting MethodSEMIFLUSH
Body Length2.625 INCHES NOMINAL IN
Body Width2.125 INCHES NOMINAL IN
Mounting Flange Width2.250 INCHES NOMINAL IN
Body Diameter2.000 INCHES NOMINAL IN
Mounting TypePANEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5315-00-011-3782 INTERCHANGEABLE
Key,woodruff
6135-00-274-4035 INTERCHANGEABLE
Battery,nonrechargeable
5305-00-655-9358 INTERCHANGEABLE
Screw,machine
5977-00-895-351410186 INTERCHANGEABLE
Brush,electrical Contact
Miraj Corp
5962-01-008-256410186 INTERCHANGEABLE
Microcircuit,linear
Microsemi Corp Analog Mixed Signal Group
6645-01-230-5073182823-001 INTERCHANGEABLE
Meter,time Totalizing
U S Dept of Transportation Federal Aviation Administration
6645-01-244-484910186 INTERCHANGEABLE
Meter,time Totalizing
Capewell Aerial Systems Llc
6520-01-353-172110186 INTERCHANGEABLE
File,pulp Canal,dental
Moyco Industries Inc Union Broach Div
4820-01-416-682710186 INTERCHANGEABLE
Repair Kit,valve
Itw Food Equipment Group Llc Dba Gaylord Industries
6640-01-629-603110186 INTERCHANGEABLE
Syringe,laboratory
Quicksilver Analytics Inc
Cross-Reference Index
Part NumberManufacturer
635-10186K Cramer Co Division of Chestnut Group Inc (USA)
D6645000001 Astronics Dme Llc Dba Astronics Dme (USA)
10186 Cramer Co Division of Chestnut Group Inc (USA)
635-10186K Cramer Products Co (USA)
Related Parts
5315-00-011-3782INTERCHANGEABLE
KEY,WOODRUFF
6135-00-274-4035INTERCHANGEABLE
BATTERY,NONRECHARGEABLE
5305-00-655-9358INTERCHANGEABLE
SCREW,MACHINE
5977-00-895-3514INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
10186
5962-01-008-2564INTERCHANGEABLE
MICROCIRCUIT,LINEAR
10186
6645-01-230-5073INTERCHANGEABLE
METER,TIME TOTALIZING
182823-001
6645-01-244-4849INTERCHANGEABLE
METER,TIME TOTALIZING
10186
6520-01-353-1721INTERCHANGEABLE
FILE,PULP CANAL,DENTAL
10186
4820-01-416-6827INTERCHANGEABLE
REPAIR KIT,VALVE
10186
6640-01-629-6031INTERCHANGEABLE
SYRINGE,LABORATORY
10186

Frequently Asked Questions

What is NSN 6645-01-241-4300?

NSN 6645-01-241-4300 is a Meter,time Totalizing, manufactured by Cramer Co Division of Chestnut Group Inc, classified under FSC 6645 (No Item Name Available). Status: active.

What are the part numbers for NSN 6645-01-241-4300?

NSN 6645-01-241-4300 has 4 cross-referenced part numbers: 635-10186K (Cramer Co Division of Chestnut Group Inc), D6645000001 (Astronics Dme Llc Dba Astronics Dme), 10186 (Cramer Co Division of Chestnut Group Inc), 635-10186K (Cramer Products Co).

What NSN replaces 6645-01-241-4300?

There are 10 known substitutes for 6645-01-241-4300: 5315-00-011-3782, 6135-00-274-4035, 5305-00-655-9358 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 635-10186K?

Key specifications for 635-10186K: Terminal Type: WIRE LEAD; Body Depth: 2.125 INCHES NOMINAL IN; Material: PLASTIC CASE; Movement Type: ELECTRICAL. 15 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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