PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

451377-SS02B5000Gage,pressure,dial Indicating

Ashcroft Inc Dba Heise · NSN 6685-00-854-9140 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-854-9140 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-854-9140. Primary manufacturer part number: 451377-SS02B5000.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Color: BLACK CASE
  • Material: GLASS PROTECTIVE CRYSTAL
  • Material Document and Classification: FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR SAE 66 ASSN STD SINGLE MATERIAL RESPONSE ACTUATING ELEMENT
  • Material: ALUMINUM CASE
  • Material: STEEL ACTUATING ELEMENT
  • Surface Treatment: ENAMEL CASE
  • FSC Application Data: GAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
Applications
  • Applications requiring Glass Protective Crystal construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-854-9140, 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 7 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6685-00-854-9140
Primary Part Number451377-SS02B5000
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAshcroft Inc Dba Heise
StatusCANCELLED
ColorBLACK CASE
MaterialGLASS PROTECTIVE CRYSTAL
Material Document and ClassificationFED STD 66 FED STD SINGLE MATERIAL RESPONSE OR SAE 66 ASSN STD SINGLE MATERIAL RESPONSE ACTUATING ELEMENT
MaterialALUMINUM CASE
MaterialSTEEL ACTUATING ELEMENT
Surface TreatmentENAMEL CASE
FSC Application DataGAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
Scale Accuracy1/2 PCT ENITRE RANGE
AdjustabilityADJUSTABLE
Connection TypeEXTERNAL
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND
Graduation Unit500.0 POUNDS PER SQUARE INCH LBS
Connection LocationBACK, LOWER
Pointer ColorBLACK
Scale Smallest Increment50.0 POUNDS PER SQUARE INCH (PSI) LBS
Scale Range+0.0 TO 5000.0 POUNDS PRESSURE PER SQUARE INCH LBS
Connection Quantity1
Dial Size4-1/2 IN.DIA IN
Pointer TypeINDICATING
Actuation TypeSINGLE BOURDON TUBE
Connection Size0.250 IN. NPT DIA IN
Scale TypeSINGLE
Mounting MethodFLUSH
Connector Type VentNOT PROVIDED
Bezel TypeHINGE
Scale NamePRESSURE
Mounting Hole Diameter0.194 INCHES NOMINAL IN
Mounting Hole Quantity3
Bolt Circle Diameter5.375 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
6685-00-854-914145-1377TAS04B10000 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
6685-01-079-419660-1377RS-02B-0-6000 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
Cross-Reference Index
Part NumberManufacturer
45-1377SS-02B-0/5000 Ashcroft Inc Dba Heise (USA)
132269-4 SPG Ametek, Inc. Div Aerospace & Defense (USA)
451377-SS02B5000 PRIMARY Ashcroft Inc Dba Heise (USA)
AA44-6PV4-RWXX Ashcroft Inc Dba Heise (USA)
1077TA Ashcroft Inc Dba Heise (USA)
1377T Ashcroft Inc Dba Heise (USA)
1377TA Ashcroft Inc Dba Heise (USA)
Related Parts
6685-00-854-9141INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
45-1377TAS04B10000
6685-01-079-4196INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
60-1377RS-02B-0-6000

Frequently Asked Questions

What is NSN 6685-00-854-9140?

NSN 6685-00-854-9140 is a Gage,pressure,dial Indicating, manufactured by Ashcroft Inc Dba Heise, classified under FSC 6685 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6685-00-854-9140?

NSN 6685-00-854-9140 has 7 cross-referenced part numbers: 45-1377SS-02B-0/5000 (Ashcroft Inc Dba Heise), 132269-4 SPG (Ametek, Inc. Div Aerospace & Defense), 451377-SS02B5000 (Ashcroft Inc Dba Heise), AA44-6PV4-RWXX (Ashcroft Inc Dba Heise), 1077TA (Ashcroft Inc Dba Heise) and 2 more.

What NSN replaces 6685-00-854-9140?

There are 2 known substitutes for 6685-00-854-9140: 6685-00-854-9141, 6685-01-079-4196. Verify interchangeability with system specifications before substitution.

What are the specifications of 451377-SS02B5000?

Key specifications for 451377-SS02B5000: Color: BLACK CASE; Material: GLASS PROTECTIVE CRYSTAL; Material Document and Classification: FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR SAE 66 ASSN STD SINGLE MATERIAL RESPONSE ACTUATING ELEMENT; Material: ALUMINUM CASE. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-854-9140 still in active supply?

NSN 6685-00-854-9140 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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