PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

45-1379AS04L100Gage,pressure,dial Indicating

Ashcroft Inc Dba Heise · NSN 6685-00-988-4425 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-988-4425 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-988-4425. Primary manufacturer part number: 45-1379AS04L100.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Bolt Circle Diameter: 5.375 INCHES NOMINAL IN
  • Mounting Hole Quantity: 3
  • Surface Treatment: ENAMEL CASE
  • Material: ALUMINUM CASE
  • FSC Application Data: GAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
  • Material: GLASS PROTECTIVE CRYSTAL
  • Material: COPPER ALLOY 511 ACTUATING ELEMENT
Applications
  • Applications requiring Aluminum Case construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-988-4425, 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 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6685-00-988-4425
Primary Part Number45-1379AS04L100
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAshcroft Inc Dba Heise
StatusCANCELLED
Bolt Circle Diameter5.375 INCHES NOMINAL IN
Mounting Hole Quantity3
Surface TreatmentENAMEL CASE
MaterialALUMINUM CASE
FSC Application DataGAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
MaterialGLASS PROTECTIVE CRYSTAL
MaterialCOPPER ALLOY 511 ACTUATING ELEMENT
Overall Diameter5.812 INCHES NOMINAL IN
AdjustabilityADJUSTABLE
Connection TypeEXTERNAL
Scale NamePRESSURE
Connection LocationLOWER
Actuation TypeSINGLE BOURDON TUBE
Dial Size4-1/2 IN. DIA IN
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND
Graduation Unit10.0 POUNDS PER SQUARE INCH LBS
Scale TypeSINGLE
Mounting MethodSURFACE WALL
Connection Quantity1
Connector Type VentNOT PROVIDED
Scale Smallest Increment1.0 POUNDS PER SQUARE INCH (PSI) LBS
Scale Accuracy1/2 OF 1 PCT ENTIRE RANGE
Pointer TypeINDICATING
Scale Range+0.0 TO 100.0 POUNDS PRESSURE PER SQUARE INCH LBS
Pointer ColorBLACK
Bezel TypeTHREAD
Connection Size0.500 IN NPT DIA IN
Mounting Hole Diameter0.218 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
6685-00-081-281645-1379A02L200 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
6685-00-726-1911155361 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
6685-00-962-978745-1279SS-02L-300 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
Cross-Reference Index
Part NumberManufacturer
45-1379AS04L100 PRIMARY Ashcroft Inc Dba Heise (USA)
45-1379AS04LXSGUS100 Ashcroft Inc Dba Heise (USA)
1379A Ashcroft Inc Dba Heise (USA)
45-1379A4L100 Ashcroft Inc Dba Heise (USA)
Related Parts
6685-00-081-2816INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
45-1379A02L200
6685-00-726-1911INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
155361
6685-00-962-9787INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
45-1279SS-02L-300

Frequently Asked Questions

What is NSN 6685-00-988-4425?

NSN 6685-00-988-4425 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 6685-00-988-4425?

NSN 6685-00-988-4425 has 4 cross-referenced part numbers: 45-1379AS04L100 (Ashcroft Inc Dba Heise), 45-1379AS04LXSGUS100 (Ashcroft Inc Dba Heise), 1379A (Ashcroft Inc Dba Heise), 45-1379A4L100 (Ashcroft Inc Dba Heise).

What NSN replaces 6685-00-988-4425?

There are 3 known substitutes for 6685-00-988-4425: 6685-00-081-2816, 6685-00-726-1911, 6685-00-962-9787. Verify interchangeability with system specifications before substitution.

What are the specifications of 45-1379AS04L100?

Key specifications for 45-1379AS04L100: Overall Depth: 3.437 INCHES NOMINAL IN; Bolt Circle Diameter: 5.375 INCHES NOMINAL IN; Mounting Hole Quantity: 3; Surface Treatment: ENAMEL CASE. 29 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-988-4425 still in active supply?

NSN 6685-00-988-4425 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.
PartsTable Design LLC · partstable.com