PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

EE23-3CDF-RWBOGage,pressure,dial Indicating

Ashcroft Inc Dba Heise · NSN 6685-01-501-1312 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-01-501-1312 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-501-1312. Primary manufacturer part number: EE23-3CDF-RWBO.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Material: STEEL CORROSION RESISTING ACTUATING ELEMENT
  • Connection Type: EXTERNAL
  • Scale Name: POUNDS PRESSURE
  • Connector Type Vent: NOT PROVIDED
  • Connection Size: 7/16-20UNF FLARELESS
  • Connection Location: BACK
  • Actuation Type: BOURDON TUBE
Applications
  • Applications requiring Steel Corrosion Resisting Actuating Element construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-501-1312, 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 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 6 manufacturers, 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
NSN6685-01-501-1312
Primary Part NumberEE23-3CDF-RWBO
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAshcroft Inc Dba Heise
StatusACTIVE
MaterialSTEEL CORROSION RESISTING ACTUATING ELEMENT
Connection TypeEXTERNAL
Scale NamePOUNDS PRESSURE
Connector Type VentNOT PROVIDED
Connection Size7/16-20UNF FLARELESS
Connection LocationBACK
Actuation TypeBOURDON TUBE
Graduation Unit10.0 POUNDS PER SQUARE INCH LBS
Scale TypeDIAL
Scale Smallest Increment2.0 POUNDS PER SQUARE INCH (PSI) LBS
Dial Size3.5INCH IN
Pointer ColorANY ACCEPTABLE
Scale Range+0.0 TO 100.0 POUNDS PRESSURE PER SQUARE INCH AND +0.0 TO 30.0 INCHES OF VACUUM LBS
Mounting MethodFLUSH
AdjustabilityNONADJUSTABLE
Connection Quantity1
Pointer TypeINDICATING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
1075-01-027-061162735-1 INTERCHANGEABLE
Standoff,strut
L3harris Technologies, Inc. Div Space and Airborne Systems
6685-01-087-9079EA24-3CYF-RWB0 INTERCHANGEABLE
Gage,compound Pressure-Vacuum,di
Ashcroft Inc Dba Heise
6685-01-418-4754EA24-3CUF-LWBO INTERCHANGEABLE
Gage,pressure,dial Indicating
Mmc Metrology Lab, Inc. Dba Mmc Metrology Lab Inc
5999-01-457-2266 INTERCHANGEABLE
Parts Kit,electronic Equipment
6685-01-475-0097 INTERCHANGEABLE
Gage,pressure,dial Indicating
6685-01-481-2073 INTERCHANGEABLE
Thermometer,indicating,capillary
6685-01-490-3189 INTERCHANGEABLE
Gage,pressure,dial Indicating
6685-01-491-0468 INTERCHANGEABLE
Gage,pressure,dial Indicating
6685-01-491-0471 INTERCHANGEABLE
Gage,pressure,dial Indicating
6685-01-493-1692 INTERCHANGEABLE
Gage,pressure,dial Indicating
Cross-Reference Index
Part NumberManufacturer
EE23-3CDF-RWBO Ashcroft Inc Dba Heise (USA)
627-351 Ashcroft Inc Dba Heise (USA)
G27-351 Ashcroft Inc Dba Heise (USA)
EA233CDFRWBO Mmc Metrology Lab, Inc. Dba Mmc Metrology Lab Inc (USA)
531-7015135-GA-103 Naval Sea Systems Command (USA)
H728-4401-GA-203 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
SC3MC1HCWCANA Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
SC3MC1HCWCANAG Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
531-7015135 Naval Sea Systems Command (USA)
MIL-G-18997 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
H728-4401 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
531-7015135-GA-106 Naval Sea Systems Command (USA)
19-07-3083E Unimasco Inc (USA)
531-7015135-GA-206 Naval Sea Systems Command (USA)
Related Parts
1075-01-027-0611INTERCHANGEABLE
STANDOFF,STRUT
62735-1
6685-01-087-9079INTERCHANGEABLE
GAGE,COMPOUND PRESSURE-VACUUM,DI
EA24-3CYF-RWB0
6685-01-418-4754INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
EA24-3CUF-LWBO
5999-01-457-2266INTERCHANGEABLE
PARTS KIT,ELECTRONIC EQUIPMENT
6685-01-475-0097INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-01-481-2073INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
6685-01-490-3189INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-01-491-0468INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-01-491-0471INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-01-493-1692INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-01-501-0899INTERCHANGEABLE
DAMPENER,FLUID PRESSURE
6685-01-501-1204INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING

Frequently Asked Questions

What is NSN 6685-01-501-1312?

NSN 6685-01-501-1312 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 6685-01-501-1312?

NSN 6685-01-501-1312 has 14 cross-referenced part numbers: EE23-3CDF-RWBO (Ashcroft Inc Dba Heise), 627-351 (Ashcroft Inc Dba Heise), G27-351 (Ashcroft Inc Dba Heise), EA233CDFRWBO (Mmc Metrology Lab, Inc. Dba Mmc Metrology Lab Inc), 531-7015135-GA-103 (Naval Sea Systems Command) and 9 more.

What NSN replaces 6685-01-501-1312?

There are 12 known substitutes for 6685-01-501-1312: 1075-01-027-0611, 6685-01-087-9079, 6685-01-418-4754 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of EE23-3CDF-RWBO?

Key specifications for EE23-3CDF-RWBO: Material: STEEL CORROSION RESISTING ACTUATING ELEMENT; Connection Type: EXTERNAL; Scale Name: POUNDS PRESSURE; Connector Type Vent: NOT PROVIDED. 17 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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