PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

88703Gage,compound Pressure-Vacuum-Te

Ametek, Inc. Div Aerospace & Defense · NSN 6685-00-601-3973 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-601-3973 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-601-3973. Primary manufacturer part number: 88703.
Features
  • Gage,compound Pressure-Vacuum-Te — FSC 6685
  • Pointer Type: INDICATING
  • Connection Size: 0.125 IN. NPT DIA IN
  • Connection Location: LOWER
  • Connector Type Vent: NOT PROVIDED
  • Mounting Method: RIGID STEM
  • Material: COPPER ALLOY 511 ACTUATING ELEMENT
  • Scale Name: PRESSURE-VACUUM AND TEMPERATURE
Applications
  • Applications requiring Copper Alloy 511 Actuating Element construction
General Description

The Gage,compound Pressure-Vacuum-Te, cataloged under National Stock Number 6685-00-601-3973, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Ametek, Inc. Div Aerospace & Defense. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6685-00-601-3973
Primary Part Number88703
Item NameGage,compound Pressure-Vacuum-Te
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAmetek, Inc. Div Aerospace & Defense
StatusCANCELLED
Pointer TypeINDICATING
Connection Size0.125 IN. NPT DIA IN
Connection LocationLOWER
Connector Type VentNOT PROVIDED
Mounting MethodRIGID STEM
MaterialCOPPER ALLOY 511 ACTUATING ELEMENT
Scale NamePRESSURE-VACUUM AND TEMPERATURE
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND; BLACK FIGURES ON WHITE BACKGROUND; RED FIGURES ON WHITE BACKGROUND; RED FIGURES ON WHITE BACKGROUND
Scale Accuracy2 PCT MIDDLE HALF; 3 PCT REMAINDER OF RANGE; 2 PCT MIDDLE HALF; 3 PCT REMAINDER RANGE; 2 PCT MIDDLE HALF; 3 PCT REMAINDER OF RANGE; 2 PCT MIDDLE HALF; 3 PCT REMAINDER OF RANGE; 2 PCT MIDDLE HALF; 3 PCT REMAINDER OF RANGE
Scale Range-80.0 TO 116.0 DEG FAHRENHEIT AND +0.0 TO 30.0 INCHES OF MERCURY AND +0.0 TO 150.0 POUNDS PRESSURE PER SQUARE INCH LBS
MaterialGLASS PROTECTIVE CRYSTAL
MaterialSTEEL CASE
Connection Quantity1
Scale Name for Which Pointer Is DesignedPRESSURE-VACUUM AND TEMPERATURE
Connection TypeEXTERNAL
Scale Smallest Increment5.0 DEG FAHRENHEIT AND 5.0 INCHES OF MERCURY (INHG) AND 5.0 POUNDS PER SQUARE INCH (PSI) LBS
Dial Size2-1/2 IN. DIA IN
Surface TreatmentENAMEL
AdjustabilityADJUSTABLE
Pointer ColorBLACK
Graduation Unit20.0 DEG FAHRENHEIT AND 30.0 INCHES OF MERCURY AND 25.0 POUNDS PER SQUARE INCH LBS
Bezel TypeSNAP-ON
Unable to DecodeUNABLE TO DECODE
Actuation TypeSINGLE BOURDON TUBE
Scale TypeMULTIPLE
Overall Diameter2.710 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5815-00-356-3400SC-B-69523 INTERCHANGEABLE
Lever
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5895-00-868-96755-0756 INTERCHANGEABLE
Guide Bar
L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications
5950-00-953-1570SMB528667 INTERCHANGEABLE
Reactor
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5905-00-969-582188703 INTERCHANGEABLE
Resistor,variable,wire Wound,pre
Cae Usa Inc.
4730-01-179-880731053 INTERCHANGEABLE
Coupling Half,quick Disconnect
Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group
5998-01-369-0556 INTERCHANGEABLE
Electronic Components Assembly
Cross-Reference Index
Part NumberManufacturer
50756 Ametek, Inc. Div Aerospace & Defense (USA)
C1780 Ametek, Inc. Div Aerospace & Defense (USA)
505ST Ametek, Inc. Div Aerospace & Defense (USA)
88703 PRIMARY Ametek, Inc. Div Aerospace & Defense (USA)
088703 Ametek, Inc. Div Aerospace & Defense (USA)
Related Parts
5815-00-356-3400INTERCHANGEABLE
LEVER
SC-B-69523
5895-00-868-9675INTERCHANGEABLE
GUIDE BAR
5-0756
5950-00-953-1570INTERCHANGEABLE
REACTOR
SMB528667
5905-00-969-5821INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
88703
4730-01-179-8807INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
31053
5998-01-369-0556INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY

Frequently Asked Questions

What is NSN 6685-00-601-3973?

NSN 6685-00-601-3973 is a Gage,compound Pressure-Vacuum-Te, manufactured by Ametek, Inc. Div Aerospace & Defense, classified under FSC 6685 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6685-00-601-3973?

NSN 6685-00-601-3973 has 5 cross-referenced part numbers: 50756 (Ametek, Inc. Div Aerospace & Defense), C1780 (Ametek, Inc. Div Aerospace & Defense), 505ST (Ametek, Inc. Div Aerospace & Defense), 88703 (Ametek, Inc. Div Aerospace & Defense), 088703 (Ametek, Inc. Div Aerospace & Defense).

What NSN replaces 6685-00-601-3973?

There are 6 known substitutes for 6685-00-601-3973: 5815-00-356-3400, 5895-00-868-9675, 5950-00-953-1570 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 88703?

Key specifications for 88703: Pointer Type: INDICATING; Connection Size: 0.125 IN. NPT DIA IN; Connection Location: LOWER; Connector Type Vent: NOT PROVIDED. 27 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-601-3973 still in active supply?

NSN 6685-00-601-3973 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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