PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SIZE12Gage,pressure,dial Indicating

Ashcroft Inc Dba Heise · NSN 6685-00-849-2254 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-849-2254 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-849-2254. Primary manufacturer part number: SIZE12.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Material: BRONZE ACTUATING ELEMENT
  • Material: GLASS PROTECTIVE CRYSTAL
  • Material: ALUMINUM CASE
  • Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY SCALE TYPE,CONNECTION QUANTITY,CONNECTION TYPE,CONNECTION LOCATION,CONNECTION SIZE,MOUNTING METHOD,BOLT CIRCLE DIAMETER,MOUNTING HOLE QUANTITY,MOUNTING HOLE DIAMETER,W/AUTOMATIC THERMAL COMPENSATOR
  • Color: BLACK CASE
  • Surface Treatment: ENAMEL, WRINKLE FINISH CASE
  • FSC Application Data: GAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
Applications
  • Applications requiring Bronze Actuating Element construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-849-2254, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Ashcroft Inc Dba Heise. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-00-849-2254
Primary Part NumberSIZE12
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAshcroft Inc Dba Heise
StatusACTIVE
MaterialBRONZE ACTUATING ELEMENT
MaterialGLASS PROTECTIVE CRYSTAL
MaterialALUMINUM CASE
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY SCALE TYPE,CONNECTION QUANTITY,CONNECTION TYPE,CONNECTION LOCATION,CONNECTION SIZE,MOUNTING METHOD,BOLT CIRCLE DIAMETER,MOUNTING HOLE QUANTITY,MOUNTING HOLE DIAMETER,W/AUTOMATIC THERMAL COMPENSATOR
ColorBLACK CASE
Surface TreatmentENAMEL, WRINKLE FINISH CASE
FSC Application DataGAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
Connection Size1/8 IN. NPT IN
Connection Quantity1
Scale Range+0.0 TO 160.0 POUNDS PRESSURE PER SQUARE INCH LBS
Scale TypeSINGLE
AdjustabilityADJUSTABLE
Pointer ColorBLACK
Connection TypeINTERNAL
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND
Connector Type VentNOT PROVIDED
Scale Accuracy0.1 OF1 PCT ENTIRE RANGE
Pointer TypeINDICATING
Unable to DecodeUNABLE TO DECODE
Scale Smallest Increment0.2 POUNDS LBS
Dial Size12 IN. DIA IN
Graduation Unit10.0 POUNDS LBS
Connection LocationSIDE
Mounting MethodFLUSH PANEL
Actuation TypeSINGLE BOURDON TUBE
Scale NamePRESSURE
Bezel TypeBAYONET
Overall Diameter13.656 INCHES NOMINAL IN
Mounting Hole Diameter0.250 INCHES NOMINAL IN
Mounting Hole Quantity3
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6685-00-082-1528 INTERCHANGEABLE
Gage,pressure,dial Indicating
6685-00-082-1529 INTERCHANGEABLE
Gage,pressure,dial Indicating
5970-00-221-5269 INTERCHANGEABLE
Insulation Sleeving,electrical
3030-00-242-8661 INTERCHANGEABLE
Pin,belt Lacing
6515-00-299-8066 INTERCHANGEABLE
Support,arch
6685-00-531-2291CCBCGV100CDF INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
6685-00-753-2023B08ATMFAAV00000 INTERCHANGEABLE
Gage,absolute Pressure,dial Indi
Ashcroft Inc Dba Heise
6685-00-753-2024 INTERCHANGEABLE
Gage,absolute Pressure,dial Indi
6685-00-827-8968 INTERCHANGEABLE
Gage,pressure,dial Indicating
6685-00-849-2253 INTERCHANGEABLE
Gage,pressure,dial Indicating
Cross-Reference Index
Part NumberManufacturer
SIZE12 Ashcroft Inc Dba Heise (USA)
Related Parts
6685-00-082-1528INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-00-082-1529INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
5970-00-221-5269INTERCHANGEABLE
INSULATION SLEEVING,ELECTRICAL
3030-00-242-8661INTERCHANGEABLE
PIN,BELT LACING
6515-00-299-8066INTERCHANGEABLE
SUPPORT,ARCH
6685-00-531-2291INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
CCBCGV100CDF
6685-00-753-2023INTERCHANGEABLE
GAGE,ABSOLUTE PRESSURE,DIAL INDI
B08ATMFAAV00000
6685-00-753-2024INTERCHANGEABLE
GAGE,ABSOLUTE PRESSURE,DIAL INDI
6685-00-827-8968INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-00-849-2253INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-00-849-2255INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-00-849-3156INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING

Frequently Asked Questions

What is NSN 6685-00-849-2254?

NSN 6685-00-849-2254 is a Gage,pressure,dial Indicating, manufactured by Ashcroft Inc Dba Heise, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-849-2254?

NSN 6685-00-849-2254 has 1 cross-referenced part number: SIZE12 (Ashcroft Inc Dba Heise).

What NSN replaces 6685-00-849-2254?

There are 12 known substitutes for 6685-00-849-2254: 6685-00-082-1528, 6685-00-082-1529, 5970-00-221-5269 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SIZE12?

Key specifications for SIZE12: Material: BRONZE ACTUATING ELEMENT; Material: GLASS PROTECTIVE CRYSTAL; Material: ALUMINUM CASE; Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY SCALE TYPE,CONNECTION QUANTITY,CONNECTION TYPE,CONNECTION LOCATION,CONNECTION SIZE,MOUNTING METHOD,BOLT CIRCLE DIAMETER,MOUNTING HOLE QUANTITY,MOUNTING HOLE DIAMETER,W/AUTOMATIC THERMAL COMPENSATOR. 30 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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