PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

266291AGage,pressure,dial Indicating

Ametek, Inc. Div Aerospace & Defense · NSN 6685-00-104-9626 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-104-9626 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-104-9626. Primary manufacturer part number: 266291A.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Mounting Method: RIGID STEM
  • Connection Size: 0.125 IN. NPT DIA IN
  • Adjustability: NONADJUSTABLE
  • Scale Name: PRESSURE
  • Overall Diameter: 1.700 INCHES NOMINAL IN
  • Actuation Type: SINGLE BOURDON TUBE
  • Scale Type: SINGLE
Applications
  • Applications requiring Copper Alloy Actuating Element construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-104-9626, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Ametek, Inc. Div Aerospace & Defense. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6685-00-104-9626
Primary Part Number266291A
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAmetek, Inc. Div Aerospace & Defense
StatusCANCELLED
Mounting MethodRIGID STEM
Connection Size0.125 IN. NPT DIA IN
AdjustabilityNONADJUSTABLE
Scale NamePRESSURE
Overall Diameter1.700 INCHES NOMINAL IN
Actuation TypeSINGLE BOURDON TUBE
Scale TypeSINGLE
Scale Range+0.0 TO 3000.0 POUNDS PRESSURE PER SQUARE INCH LBS
MaterialCOPPER ALLOY ACTUATING ELEMENT
Dial Size1-1/2 IN. DIA IN
Pointer TypeINDICATING
Connection Quantity1
Scale Smallest Increment100.0 POUNDS PER SQUARE INCH (PSI) LBS
Pointer ColorBLACK
Graduation Unit500.0 POUNDS PER SQUARE INCH LBS
Scale Accuracy2 PCT ACCURACY RATING MIDDLE HALF OF RANGE
MaterialPLASTIC PROTECTIVE CRYSTAL
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND,DIAL MARKED W/RED LINE AT 1800 PSI
Connection LocationBACK, CENTER
Bezel TypeTHREAD
FSC Application DataGAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
MaterialBRASS CASE
Connector Type VentNOT PROVIDED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
6685-00-068-8073148074A INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
2930-00-071-3172218150R95 INTERCHANGEABLE
Pump,cooling System,engine
Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
5930-00-086-9980 INTERCHANGEABLE
Switch,rotary
6685-00-117-5490136772A INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
6515-00-340-670006-3175 INTERCHANGEABLE
Hammer,reflex Testing
Sklar Corporation Dba Sklar Instruments
5360-00-476-5550P60-1 INTERCHANGEABLE
Spring,helical,compression
Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc
4320-00-496-6963 INTERCHANGEABLE
Pump,hydraulic Ram,hand Driven
6685-00-526-9283A3670 INTERCHANGEABLE
Gage,pressure,dial Indicating
Metadure Parts & Sales, Inc.
6685-00-628-4205100106 INTERCHANGEABLE
Gage,pressure,dial Indicating
Metadure Parts & Sales, Inc.
6685-01-287-6181144203A INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
Cross-Reference Index
Part NumberManufacturer
140749 Ametek, Inc. Div Aerospace & Defense (USA)
WRL1-5P500-3000CBMSP Texsteam Inc Dba Txt or Rcs or Texsteam (USA)
516-0-3000 Ametek, Inc. Div Aerospace & Defense (USA)
273453-2 Honeywell International Inc. Div Aerospace - Torrance (USA)
P601-0-3000 Ametek, Inc. Div Aerospace & Defense (USA)
P601 Ametek, Inc. Div Aerospace & Defense (USA)
266291A PRIMARY Ametek, Inc. Div Aerospace & Defense (USA)
Related Parts
6685-00-068-8073INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
148074A
2930-00-071-3172INTERCHANGEABLE
PUMP,COOLING SYSTEM,ENGINE
218150R95
5930-00-086-9980INTERCHANGEABLE
SWITCH,ROTARY
6685-00-117-5490INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
136772A
6515-00-340-6700INTERCHANGEABLE
HAMMER,REFLEX TESTING
06-3175
5360-00-476-5550INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
P60-1
4320-00-496-6963INTERCHANGEABLE
PUMP,HYDRAULIC RAM,HAND DRIVEN
6685-00-526-9283INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
A3670
6685-00-628-4205INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
100106
6685-01-287-6181INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
144203A
5980-01-618-9748INTERCHANGEABLE
LIGHT EMITTING DIODE
P-601

Frequently Asked Questions

What is NSN 6685-00-104-9626?

NSN 6685-00-104-9626 is a Gage,pressure,dial Indicating, manufactured by Ametek, Inc. Div Aerospace & Defense, classified under FSC 6685 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6685-00-104-9626?

NSN 6685-00-104-9626 has 7 cross-referenced part numbers: 140749 (Ametek, Inc. Div Aerospace & Defense), WRL1-5P500-3000CBMSP (Texsteam Inc Dba Txt or Rcs or Texsteam), 516-0-3000 (Ametek, Inc. Div Aerospace & Defense), 273453-2 (Honeywell International Inc. Div Aerospace - Torrance), P601-0-3000 (Ametek, Inc. Div Aerospace & Defense) and 2 more.

What NSN replaces 6685-00-104-9626?

There are 11 known substitutes for 6685-00-104-9626: 6685-00-068-8073, 2930-00-071-3172, 5930-00-086-9980 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 266291A?

Key specifications for 266291A: Mounting Method: RIGID STEM; Special Features: W/RESTRICTOR FOR GASEOUS HELIUM,3/16 IN. DIA HOLE IN REAR OF CASE COVERED W/ADHESIVE BACKED TAPE THAT WILL RELEASE IF THE PRESSURE ELEMENT IN THE GAGE SHOULD FAIL IN; Connection Size: 0.125 IN. NPT DIA IN; Adjustability: NONADJUSTABLE. 26 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-104-9626 still in active supply?

NSN 6685-00-104-9626 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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