PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1125AGage,pressure,dial Indicating

Ashcroft Inc Dba Heise · NSN 6685-00-951-8385 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-951-8385 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-951-8385. Primary manufacturer part number: 1125A.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Mounting Hole Diameter: 0.219 INCHES NOMINAL IN
  • Bolt Circle Diameter: 5.375 INCHES NOMINAL IN
  • Color: BLACK CASE
  • FSC Application Data: GAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
  • Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY SCALE TYPE,DIAL SIZE,SCALE MARKING,CASE MATERIAL,CASE SURFACE TREATMENT,OVERALL DIAMETER,OVERALL DEPTH,BEZEL TYPE,MATERIAL,SURFACE TREATMENT,CONNECTION QUANTITY,CONNECTION TYPE,CONNECTION LOCATION,CONNECTION SIZE,MOUNTING METHOD,BOLT CIRCLE DIAMETER,MOUNTING HOLE QUANTITY,AND MOUNTING HOLE DIAMETER
  • Material: GLASS PROTECTIVE CRYSTAL
  • Material: BRONZE ACTUATING ELEMENT
Applications
  • Applications requiring Glass Protective Crystal construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-951-8385, 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 29 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-00-951-8385
Primary Part Number1125A
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAshcroft Inc Dba Heise
StatusACTIVE
Mounting Hole Diameter0.219 INCHES NOMINAL IN
Bolt Circle Diameter5.375 INCHES NOMINAL IN
ColorBLACK CASE
FSC Application DataGAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY SCALE TYPE,DIAL SIZE,SCALE MARKING,CASE MATERIAL,CASE SURFACE TREATMENT,OVERALL DIAMETER,OVERALL DEPTH,BEZEL TYPE,MATERIAL,SURFACE TREATMENT,CONNECTION QUANTITY,CONNECTION TYPE,CONNECTION LOCATION,CONNECTION SIZE,MOUNTING METHOD,BOLT CIRCLE DIAMETER,MOUNTING HOLE QUANTITY,AND MOUNTING HOLE DIAMETER
MaterialGLASS PROTECTIVE CRYSTAL
MaterialBRONZE ACTUATING ELEMENT
Surface TreatmentPAINT EPOXY CASE
MaterialBRASS CASE
Mounting Hole Quantity3
Scale Smallest Increment1.000 POUNDS LBS
Pointer ColorBLACK
Mounting MethodFLUSH PANEL
Graduation Unit10.000 POUNDS LBS
Connector Type VentNOT PROVIDED
Connection LocationBACK
Scale Name for Which Pointer Is DesignedHIGH PRESSURE AND LOW PRESSURE
Scale Accuracy1 PCT ENTIRE RANGE
Scale NamePRESSURE
Connection TypeEXTERNAL
Unable to DecodeUNABLE TO DECODE
Actuation TypeDOUBLE BOURDON TUBE
Bezel TypeTHREAD
Connection Size1/4 IN. NPT IN
Dial Size4-1/2 IN. DIA IN
Scale TypeMULTIPLE
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND
Connection Quantity2
Scale Range+0.000 TO 50.000 POUNDS PRESSURE PER SQUARE INCH LBS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
6685-00-052-492445-1125A02B100-0-100 INTERCHANGEABLE
Gage,differential,dial Indicatin
Ashcroft Inc Dba Heise
6685-00-282-8918BC24-PDD4-RWX9,OPT:SH,PD,RB INTERCHANGEABLE
Gage,differential,dial Indicatin
Ashcroft Inc Dba Heise
4510-00-463-37501125-A INTERCHANGEABLE
Faucet,double
The Central Brass Manufacturing Company
5975-00-903-8858TWAD125 INTERCHANGEABLE
Adapter,electrical Conduit
Egs Electrical Group Appleton Div
Cross-Reference Index
Part NumberManufacturer
1125A Ashcroft Inc Dba Heise (USA)
Related Parts
6685-00-052-4924INTERCHANGEABLE
GAGE,DIFFERENTIAL,DIAL INDICATIN
45-1125A02B100-0-100
6685-00-282-8918INTERCHANGEABLE
GAGE,DIFFERENTIAL,DIAL INDICATIN
BC24-PDD4-RWX9,OPT:SH,PD,RB
4510-00-463-3750INTERCHANGEABLE
FAUCET,DOUBLE
1125-A
5975-00-903-8858INTERCHANGEABLE
ADAPTER,ELECTRICAL CONDUIT
TWAD125

Frequently Asked Questions

What is NSN 6685-00-951-8385?

NSN 6685-00-951-8385 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 6685-00-951-8385?

NSN 6685-00-951-8385 has 1 cross-referenced part number: 1125A (Ashcroft Inc Dba Heise).

What NSN replaces 6685-00-951-8385?

There are 4 known substitutes for 6685-00-951-8385: 6685-00-052-4924, 6685-00-282-8918, 4510-00-463-3750 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1125A?

Key specifications for 1125A: Mounting Hole Diameter: 0.219 INCHES NOMINAL IN; Bolt Circle Diameter: 5.375 INCHES NOMINAL IN; Color: BLACK CASE; FSC Application Data: GAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE. 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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