PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

172294AGage,pressure,dial Indicating

Ametek, Inc. Div Aerospace & Defense · NSN 6685-00-845-4656 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-845-4656 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-845-4656. Primary manufacturer part number: 172294A.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Material: STEEL CASE
  • Material: GLASS PROTECTIVE CRYSTAL
  • Material: BRONZE ACTUATING ELEMENT
  • Surface Treatment: ENAMEL CASE
  • FSC Application Data: GAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
  • Bezel Type: SLIPS-ON
  • Connector Type Vent: NOT PROVIDED
Applications
  • Applications requiring Steel Case construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-845-4656, 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 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6685-00-845-4656
Primary Part Number172294A
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAmetek, Inc. Div Aerospace & Defense
StatusCANCELLED
MaterialSTEEL CASE
MaterialGLASS PROTECTIVE CRYSTAL
MaterialBRONZE ACTUATING ELEMENT
Surface TreatmentENAMEL CASE
FSC Application DataGAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
Bezel TypeSLIPS-ON
Connector Type VentNOT PROVIDED
Pointer TypeINDICATING
Connection Size0.250 IN. NPT IN
Connection Quantity1
Scale TypeSINGLE
Graduation Unit5.0 MILLIMETERS AND 2.0 OUNCES OZ
Dial Size2-1/2 IN. DIA IN
Scale Smallest Increment1.0 INCHES AND 0.5 OUNCES PER SQUARE INCH OZ
Scale NamePRESSURE
AdjustabilityADJUSTABLE
Mounting Connection LocationBACK, CENTER
Scale Range+0.0 TO 35.0 INCHES OF WATER AND +0.0 TO 20.0 OUNCES PER SQUARE INCH OZ
Connection TypeEXTERNAL
Connection LocationBACK, CENTER
Pointer ColorBLACK
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND,RED FIGURES ON WHITE BACKGROUND
Mounting MethodRIGID STEM
Actuation TypeDIAPHRAGM
Overall Diameter2.625 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6685-00-069-1598G11246 INTERCHANGEABLE
Gage,pressure,dial Indicating
Bellofram Corporation
5930-00-080-5801633S INTERCHANGEABLE
Switch,foot
Linemaster Switch Corporation Dba Linemaster Switch Corp
6760-00-219-5828 INTERCHANGEABLE
Retainer,spring
5910-00-284-4501P633 INTERCHANGEABLE
Capacitor,variable,air Dielectri
Viking Technologies, Ltd.
6685-00-469-2540 INTERCHANGEABLE
Gage,pressure,dial Indicating
6685-00-953-9090G29036 INTERCHANGEABLE
Gage,pressure,dial Indicating
Bellofram Corporation
2930-01-047-53048633 INTERCHANGEABLE
Pump,cooling System,engine
Elgin Industries Inc. Dba
5315-01-260-0584850-109 INTERCHANGEABLE
Key,woodruff
The Raymond Corp Dba Raymond Sales Corp Div the Raymond Corporation
6685-01-260-7933161969A INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
5950-01-294-8525850109 INTERCHANGEABLE
Transformer,power
Crane Electronics, Inc.
Cross-Reference Index
Part NumberManufacturer
850-109 Aqua-Chem Inc Cleaver-Brooks Div (USA)
P633 Ametek, Inc. Div Aerospace & Defense (USA)
P733 1/4CBM2 1/2-35INH2O20PSI Ametek, Inc. Div Aerospace & Defense (USA)
633S Ametek, Inc. Div Aerospace & Defense (USA)
P733 Ametek, Inc. Div Aerospace & Defense (USA)
172294A PRIMARY Ametek, Inc. Div Aerospace & Defense (USA)
G22709-83K/GLASS LENS Liftec Inc Div Liftec, Inc. (USA)
B15265-1 Spx Corporation Dba Dielectric Communications Div Spx Communication Technologies (USA)
75992 Ametek, Inc. Div Aerospace & Defense (USA)
005467 Ametek, Inc. Div Aerospace & Defense (USA)
83GE Liftec Inc Div Liftec, Inc. (USA)
Related Parts
6685-00-069-1598INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
G11246
5930-00-080-5801INTERCHANGEABLE
SWITCH,FOOT
633S
6760-00-219-5828INTERCHANGEABLE
RETAINER,SPRING
5910-00-284-4501INTERCHANGEABLE
CAPACITOR,VARIABLE,AIR DIELECTRI
P633
6685-00-469-2540INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-00-953-9090INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
G29036
2930-01-047-5304INTERCHANGEABLE
PUMP,COOLING SYSTEM,ENGINE
8633
5315-01-260-0584INTERCHANGEABLE
KEY,WOODRUFF
850-109
6685-01-260-7933INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
161969A
5950-01-294-8525INTERCHANGEABLE
TRANSFORMER,POWER
850109
6130-01-458-4295INTERCHANGEABLE
COVER,POWER SUPPLY
63-3S
5340-01-543-0318INTERCHANGEABLE
BRACKET,MOUNTING
005467

Frequently Asked Questions

What is NSN 6685-00-845-4656?

NSN 6685-00-845-4656 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 6685-00-845-4656?

NSN 6685-00-845-4656 has 11 cross-referenced part numbers: 850-109 (Aqua-Chem Inc Cleaver-Brooks Div), P633 (Ametek, Inc. Div Aerospace & Defense), P733 1/4CBM2 1/2-35INH2O20PSI (Ametek, Inc. Div Aerospace & Defense), 633S (Ametek, Inc. Div Aerospace & Defense), P733 (Ametek, Inc. Div Aerospace & Defense) and 6 more.

What NSN replaces 6685-00-845-4656?

There are 12 known substitutes for 6685-00-845-4656: 6685-00-069-1598, 5930-00-080-5801, 6760-00-219-5828 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 172294A?

Key specifications for 172294A: Overall Depth: 1.250 INCHES NOMINAL IN; Material: STEEL CASE; Material: GLASS PROTECTIVE CRYSTAL; Material: BRONZE ACTUATING ELEMENT. 26 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-845-4656 still in active supply?

NSN 6685-00-845-4656 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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