PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

LM-HH2MS-H21Meter,time Totalizing

Honeywell International Inc. Dba Honeyweel Sensing & Controls · NSN 6645-01-458-7278 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-01-458-7278 — this item is cataloged by the U.S. Government under National Stock Number 6645-01-458-7278. Primary manufacturer part number: LM-HH2MS-H21.
Features
  • Meter,time Totalizing — FSC 6645
  • 3 verified cross-references
  • Primary manufacturer: Honeywell International Inc. Dba Honeyweel Sensing & Controls
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Meter,time Totalizing, cataloged under National Stock Number 6645-01-458-7278, is classified within Federal Supply Class 6645 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Honeywell International Inc. Dba Honeyweel Sensing & Controls. 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
NSN6645-01-458-7278
Primary Part NumberLM-HH2MS-H21
Item NameMeter,time Totalizing
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerHoneywell International Inc. Dba Honeyweel Sensing & Controls
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5935-00-187-063130691142Z INTERCHANGEABLE
Connector,plug,electrical
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
3030-00-970-3952180XL037 INTERCHANGEABLE
Belt,positive Drive
Emerson Electric Co Browning Mfg Div
5985-01-448-59508531-1 INTERCHANGEABLE
Radome
Cpi Essco Inc
6630-01-617-382485311 INTERCHANGEABLE
Code Standard Astm
Petroleum Analyzer Co L.p
Cross-Reference Index
Part NumberManufacturer
LM-HH2MS-H21 PRIMARY Honeywell International Inc. Dba Honeyweel Sensing & Controls (USA)
85311-12 Honeywell International Inc. Dba Honeyweel Sensing & Controls (USA)
85311 Hobbs Corp (USA)
Related Parts
5935-00-187-0631INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
30691142Z
3030-00-970-3952INTERCHANGEABLE
BELT,POSITIVE DRIVE
180XL037
5985-01-448-5950INTERCHANGEABLE
RADOME
8531-1
6630-01-617-3824INTERCHANGEABLE
CODE STANDARD ASTM
85311

Frequently Asked Questions

What is NSN 6645-01-458-7278?

NSN 6645-01-458-7278 is a Meter,time Totalizing, manufactured by Honeywell International Inc. Dba Honeyweel Sensing & Controls, classified under FSC 6645 (No Item Name Available). Status: active.

What are the part numbers for NSN 6645-01-458-7278?

NSN 6645-01-458-7278 has 3 cross-referenced part numbers: LM-HH2MS-H21 (Honeywell International Inc. Dba Honeyweel Sensing & Controls), 85311-12 (Honeywell International Inc. Dba Honeyweel Sensing & Controls), 85311 (Hobbs Corp).

What NSN replaces 6645-01-458-7278?

There are 4 known substitutes for 6645-01-458-7278: 5935-00-187-0631, 3030-00-970-3952, 5985-01-448-5950 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of LM-HH2MS-H21?

Key specifications for LM-HH2MS-H21: Special Features: 10-40 VDC, 10,000 HRS RANGE, 2 SCREW FLANGE VDC; End Item Identification: 6115-01-435-1565. 2 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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