PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

41166MACalibration Kit,gas Indicators a

Rosemount Analytical Inc · NSN 6665-00-136-7971 · FSC 6665 · No Item Name Available
Verified by PartsTable
NSN 6665-00-136-7971 — this item is cataloged by the U.S. Government under National Stock Number 6665-00-136-7971. Primary manufacturer part number: 41166MA.
Features
  • Calibration Kit,gas Indicators a — FSC 6665
  • Functional Description: CHECKS THE ACCURACY OF COMBUSTIBLE GAS INDICATORS
  • 5 verified cross-references
  • Primary manufacturer: Rosemount Analytical Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Calibration Kit,gas Indicators a, cataloged under National Stock Number 6665-00-136-7971, is classified within Federal Supply Class 6665 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Rosemount Analytical Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, 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
NSN6665-00-136-7971
Primary Part Number41166MA
Item NameCalibration Kit,gas Indicators a
FSC / FSG6665 / 66 — No Item Name Available
ManufacturerRosemount Analytical Inc
StatusACTIVE
Functional DescriptionCHECKS THE ACCURACY OF COMBUSTIBLE GAS INDICATORS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5920-00-238-3087 INTERCHANGEABLE
Fuse,cartridge
5950-00-824-065839701 INTERCHANGEABLE
Transformer,power
Freed Transformer Co
5820-01-071-9189 INTERCHANGEABLE
Corrector,digital T
5342-01-373-6712C3970-1 INTERCHANGEABLE
Mount,resilient,weapon System
Vibration Mountings & Controls Inc Div Vmc Group
5930-01-460-8725 INTERCHANGEABLE
Switch,push
5305-01-557-083539701 INTERCHANGEABLE
Screw,cap,socket Head
Fastenal Company Dba Fastenal Co
5998-01-681-6827TBC-1 INTERCHANGEABLE
Circuit Card Assembly
Automated Systems Engineering, Inc. Dba Automated Systems Engineering Inc
Cross-Reference Index
Part NumberManufacturer
41166MA Rosemount Analytical Inc (USA)
TBC1 Rosemount Analytical Inc (USA)
41166MA Emerson Electric Co (USA)
C39701 Rosemount Analytical Inc (USA)
39701 Rosemount Analytical Inc (USA)
Related Parts
5920-00-238-3087INTERCHANGEABLE
FUSE,CARTRIDGE
5950-00-824-0658INTERCHANGEABLE
TRANSFORMER,POWER
39701
5820-01-071-9189INTERCHANGEABLE
CORRECTOR,DIGITAL T
5342-01-373-6712INTERCHANGEABLE
MOUNT,RESILIENT,WEAPON SYSTEM
C3970-1
5930-01-460-8725INTERCHANGEABLE
SWITCH,PUSH
5305-01-557-0835INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
39701
5998-01-681-6827INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
TBC-1

Frequently Asked Questions

What is NSN 6665-00-136-7971?

NSN 6665-00-136-7971 is a Calibration Kit,gas Indicators a, manufactured by Rosemount Analytical Inc, classified under FSC 6665 (No Item Name Available). Status: active.

What are the part numbers for NSN 6665-00-136-7971?

NSN 6665-00-136-7971 has 5 cross-referenced part numbers: 41166MA (Rosemount Analytical Inc), TBC1 (Rosemount Analytical Inc), 41166MA (Emerson Electric Co), C39701 (Rosemount Analytical Inc), 39701 (Rosemount Analytical Inc).

What NSN replaces 6665-00-136-7971?

There are 7 known substitutes for 6665-00-136-7971: 5920-00-238-3087, 5950-00-824-0658, 5820-01-071-9189 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 41166MA?

Key specifications for 41166MA: Functional Description: CHECKS THE ACCURACY OF COMBUSTIBLE GAS INDICATORS; Part Name Assigned by Controlling Agency: FIELD CALIBRATION UNIT. 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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