PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6749-180Gage,absolute Pressure,dial Indi

Ashcroft Inc Dba Heise · NSN 6685-00-514-6184 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-514-6184 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-514-6184. Primary manufacturer part number: 6749-180.
Features
  • Gage,absolute Pressure,dial Indi — FSC 6685
  • Mounting Hole Quantity: 4
  • Surface Treatment: PAINT CASE
  • Material: GLASS PROTECTIVE CRYSTAL
  • Material: PLASTIC PHENOLIC CASE
  • Reference Number Differentiating Characteristics: GREEN PHOSPHORESCENT PAINT
  • Departure From Cited Document: AS MODIFIED BY SCALE INCRIPTION/BACKGROUND COLOR,POINTER COLOR
  • Connection Quantity: 1
Applications
  • Applications requiring Glass Protective Crystal construction
General Description

The Gage,absolute Pressure,dial Indi, cataloged under National Stock Number 6685-00-514-6184, 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 27 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-00-514-6184
Primary Part Number6749-180
Item NameGage,absolute Pressure,dial Indi
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAshcroft Inc Dba Heise
StatusACTIVE
Mounting Hole Quantity4
Surface TreatmentPAINT CASE
MaterialGLASS PROTECTIVE CRYSTAL
MaterialPLASTIC PHENOLIC CASE
Reference Number Differentiating CharacteristicsGREEN PHOSPHORESCENT PAINT
Departure From Cited DocumentAS MODIFIED BY SCALE INCRIPTION/BACKGROUND COLOR,POINTER COLOR
Connection Quantity1
Dial Size2-3/4 IN. DIA IN
Pointer ColorBLACK, FLUORESCENT
Graduation Unit10.0 INCHES IN
AdjustabilityNONADJUSTABLE
Connection LocationBACK
Scale NamePRESSURE
Unable to DecodeUNABLE TO DECODE
Mounting MethodFLUSH PANEL
Scale Accuracy1 PCT ENTIRE RANGE
Scale Range+10.0 TO 75.0 INCHES OF MERCURY IN
Actuation TypeDIAPHRAGM
Scale TypeSINGLE
Connection Size1/8 NPT
Connector Type VentNOT PROVIDED
Scale Smallest Increment1.0 INCHES IN
Pointer TypeINDICATING
Connection TypeINTERNAL
Scale Inscription/background ColorPHOSPHORESCENT FIGURES ON BLACK BACKGROUND
Bolt Circle Diameter3.500 INCHES NOMINAL IN
Mounting Hole Diameter0.170 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
6685-00-663-5491 INTERCHANGEABLE
Gage,absolute Pressure,dial Indi
Cross-Reference Index
Part NumberManufacturer
6749-180 Ashcroft Inc Dba Heise (USA)
Related Parts
6685-00-663-5491INTERCHANGEABLE
GAGE,ABSOLUTE PRESSURE,DIAL INDI

Frequently Asked Questions

What is NSN 6685-00-514-6184?

NSN 6685-00-514-6184 is a Gage,absolute Pressure,dial Indi, manufactured by Ashcroft Inc Dba Heise, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-514-6184?

NSN 6685-00-514-6184 has 1 cross-referenced part number: 6749-180 (Ashcroft Inc Dba Heise).

What NSN replaces 6685-00-514-6184?

There is 1 known substitute for 6685-00-514-6184: 6685-00-663-5491. Verify interchangeability with system specifications before substitution.

What are the specifications of 6749-180?

Key specifications for 6749-180: Mounting Hole Quantity: 4; Overall Width: 3.250 INCHES NOMINAL IN; Surface Treatment: PAINT CASE; Material: GLASS PROTECTIVE CRYSTAL. 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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