PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

91261Cap,reagent Bottle

Mine Safety Appliances Company · NSN 6665-00-455-3167 · FSC 6665 · No Item Name Available
Verified by PartsTable
NSN 6665-00-455-3167 — this item is cataloged by the U.S. Government under National Stock Number 6665-00-455-3167. Primary manufacturer part number: 91261.
Features
  • Cap,reagent Bottle — FSC 6665
  • 1 verified cross-reference
  • Primary manufacturer: Mine Safety Appliances Company
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Cap,reagent Bottle, cataloged under National Stock Number 6665-00-455-3167, is classified within Federal Supply Class 6665 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Mine Safety Appliances Company. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameCap,reagent Bottle
FSC / FSG6665 — No Item Name Available (FSG 66)
ManufacturersMine Safety Appliances Company (CAGE 55799)
Technical Specifications
ParameterValue
NSN6665-00-455-3167
Primary Part Number91261
Item NameCap,reagent Bottle
FSC / FSG6665 / 66 — No Item Name Available
ManufacturerMine Safety Appliances Company
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
2825-00-591-813991261-001 INTERCHANGEABLE
Packing Assembly,la
Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions
5305-01-031-6620 INTERCHANGEABLE
Screw,machine
5930-01-045-7304 INTERCHANGEABLE
Switch,pressure
5930-01-257-2071 INTERCHANGEABLE
Switch,thermostatic
5940-01-722-770798-6186 INTERCHANGEABLE
Cover,terminal
Market Forge Industries Inc
Cross-Reference Index
Part NumberManufacturer
91261 PRIMARY Mine Safety Appliances Company (USA)
Related Parts
2825-00-591-8139INTERCHANGEABLE
PACKING ASSEMBLY,LA
91261-001
5305-01-031-6620INTERCHANGEABLE
SCREW,MACHINE
5930-01-045-7304INTERCHANGEABLE
SWITCH,PRESSURE
5930-01-257-2071INTERCHANGEABLE
SWITCH,THERMOSTATIC
5940-01-722-7707INTERCHANGEABLE
COVER,TERMINAL
98-6186

Frequently Asked Questions

What is NSN 6665-00-455-3167?

NSN 6665-00-455-3167 is a Cap,reagent Bottle, manufactured by Mine Safety Appliances Company, classified under FSC 6665 (No Item Name Available). Status: active.

What are the part numbers for NSN 6665-00-455-3167?

NSN 6665-00-455-3167 has 1 cross-referenced part number: 91261 (Mine Safety Appliances Company).

What NSN replaces 6665-00-455-3167?

There are 5 known substitutes for 6665-00-455-3167: 2825-00-591-8139, 5305-01-031-6620, 5930-01-045-7304 and 2 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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