PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

100223Meter,time Totalizing

Maxima Technologies & Systems Llc · NSN 6645-01-426-3378 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-01-426-3378 — this item is cataloged by the U.S. Government under National Stock Number 6645-01-426-3378. Primary manufacturer part number: 100223.
Features
  • Meter,time Totalizing — FSC 6645
  • Unit Type: MOUNTED
  • Dial Diameter: 2.300 INCHES NOMINAL IN
  • Material: PLASTIC CASE
  • Body Diameter: 2.040 INCHES NOMINAL IN
  • Mounting Type: PANEL
  • Body Length: 2.100 INCHES MAXIMUM IN
  • 3 verified cross-references
Applications
  • Applications requiring Plastic Case construction
General Description

The Meter,time Totalizing, cataloged under National Stock Number 6645-01-426-3378, is classified within Federal Supply Class 6645 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Maxima Technologies & Systems Llc. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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
NSN6645-01-426-3378
Primary Part Number100223
Item NameMeter,time Totalizing
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerMaxima Technologies & Systems Llc
StatusACTIVE
Unit TypeMOUNTED
Dial Diameter2.300 INCHES NOMINAL IN
MaterialPLASTIC CASE
Body Diameter2.040 INCHES NOMINAL IN
Mounting TypePANEL
Body Length2.100 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5998-00-175-7801100223 INTERCHANGEABLE
Circuit Card Assembly
Logimetrics Inc
5975-00-581-9862100223 INTERCHANGEABLE
Chassis,electrical-Electronic Eq
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
2510-00-741-36427413642 INTERCHANGEABLE
Bolt Front Spring
U S Army Tank Automotive Command Amsta-Im-Mm
5999-01-026-87972450156-1 INTERCHANGEABLE
Mounting Pad,electrical-Electron
Caes Systems Llc
5331-01-285-3945100223 INTERCHANGEABLE
O-Ring
American Metal Bearing Co Dba Amb Engineering & Machining Solutions
5340-01-361-7657100223 INTERCHANGEABLE
Stop,mechanical
Hayden Inc
4820-01-417-237010022-3 INTERCHANGEABLE
Valve,angle
Morpac Industries, Inc Div Actuator
5305-01-480-22251002-23 INTERCHANGEABLE
Setscrew
Aqualung Usa, Inc
5998-01-547-9261100.223 INTERCHANGEABLE
Printed Circuit Board
International Met Systems Inc Dba Intermet Systems
8470-01-609-3873 INTERCHANGEABLE
Insert,fragmentation Protective
Cross-Reference Index
Part NumberManufacturer
100223 PRIMARY Maxima Technologies & Systems Llc (USA)
3000137-001 PRIMARY Hdt Expeditionary Systems Inc (USA)
3000137-001 Hdt Tactical Power, Inc. (USA)
Related Parts
5998-00-175-7801INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
100223
5975-00-581-9862INTERCHANGEABLE
CHASSIS,ELECTRICAL-ELECTRONIC EQ
100223
2510-00-741-3642INTERCHANGEABLE
BOLT FRONT SPRING
7413642
5999-01-026-8797INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
2450156-1
5331-01-285-3945INTERCHANGEABLE
O-RING
100223
5340-01-361-7657INTERCHANGEABLE
STOP,MECHANICAL
100223
4820-01-417-2370INTERCHANGEABLE
VALVE,ANGLE
10022-3
5305-01-480-2225INTERCHANGEABLE
SETSCREW
1002-23
5998-01-547-9261INTERCHANGEABLE
PRINTED CIRCUIT BOARD
100.223
8470-01-609-3873INTERCHANGEABLE
INSERT,FRAGMENTATION PROTECTIVE

Frequently Asked Questions

What is NSN 6645-01-426-3378?

NSN 6645-01-426-3378 is a Meter,time Totalizing, manufactured by Maxima Technologies & Systems Llc, classified under FSC 6645 (No Item Name Available). Status: active.

What are the part numbers for NSN 6645-01-426-3378?

NSN 6645-01-426-3378 has 3 cross-referenced part numbers: 100223 (Maxima Technologies & Systems Llc), 3000137-001 (Hdt Expeditionary Systems Inc), 3000137-001 (Hdt Tactical Power, Inc.).

What NSN replaces 6645-01-426-3378?

There are 10 known substitutes for 6645-01-426-3378: 5998-00-175-7801, 5975-00-581-9862, 2510-00-741-3642 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 100223?

Key specifications for 100223: Special Features: BRASS PLATED TERMINALS;PLUS/MINUS1 PERCENT ACCURACY AT ROOM TEMPERATURE; Part Name Assigned by Controlling Agency: HOURMETER 12/24; Unit Type: MOUNTED; Dial Diameter: 2.300 INCHES NOMINAL IN. 9 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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