PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

56493Meter,time Totalizing

Maxima Technologies & Systems Llc · NSN 6645-01-253-9725 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-01-253-9725 — this item is cataloged by the U.S. Government under National Stock Number 6645-01-253-9725. Primary manufacturer part number: 56493.
Features
  • Meter,time Totalizing — FSC 6645
  • 1 verified cross-reference
  • Primary manufacturer: Maxima Technologies & Systems Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Meter,time Totalizing, cataloged under National Stock Number 6645-01-253-9725, 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. 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 NameMeter,time Totalizing
FSC / FSG6645 — No Item Name Available (FSG 66)
ManufacturersMaxima Technologies & Systems Llc (CAGE 16476)
Technical Specifications
ParameterValue
NSN6645-01-253-9725
Primary Part Number56493
Item NameMeter,time Totalizing
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerMaxima Technologies & Systems Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4320-00-013-352656493 INTERCHANGEABLE
Valve Head,hydraulic Motor-Pump
Parker Hannifin Corporation Div Hydraulic Systems Division
3110-00-100-0668659 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
1020-00-590-5813293865PC1 INTERCHANGEABLE
Valve Assy,relief
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
4820-01-150-725810282ELJ INTERCHANGEABLE
Valve,regulating,fluid Pressure
Fairchild Industrial Products Company
Cross-Reference Index
Part NumberManufacturer
56493 PRIMARY Maxima Technologies & Systems Llc (USA)
Related Parts
4320-00-013-3526INTERCHANGEABLE
VALVE HEAD,HYDRAULIC MOTOR-PUMP
56493
3110-00-100-0668INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
659
1020-00-590-5813INTERCHANGEABLE
VALVE ASSY,RELIEF
293865PC1
4820-01-150-7258INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
10282ELJ

Frequently Asked Questions

What is NSN 6645-01-253-9725?

NSN 6645-01-253-9725 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 6645-01-253-9725?

NSN 6645-01-253-9725 has 1 cross-referenced part number: 56493 (Maxima Technologies & Systems Llc).

What NSN replaces 6645-01-253-9725?

There are 4 known substitutes for 6645-01-253-9725: 4320-00-013-3526, 3110-00-100-0668, 1020-00-590-5813 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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