PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12126Gage,compound Pressure-Vacuum,di

John Reiner & Co. Inc. · NSN 6685-00-252-3023 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-252-3023 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-252-3023. Primary manufacturer part number: 12126.
Features
  • Gage,compound Pressure-Vacuum,di — FSC 6685
  • Overall Diameter: 5.813 INCHES NOMINAL IN
  • Pointer Color: BLACK AND RED
  • Bezel Type: SLIPS-ON
  • Material: PLASTIC CASE
  • Adjustability: ADJUSTABLE
  • Scale Name: PRESSURE-VACUUM
  • Dial Size: 4-1/2 IN. DIA IN
Applications
  • Applications requiring Plastic Case construction
General Description

The Gage,compound Pressure-Vacuum,di, cataloged under National Stock Number 6685-00-252-3023, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is John Reiner & Co. Inc.. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6685-00-252-3023
Primary Part Number12126
Item NameGage,compound Pressure-Vacuum,di
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerJohn Reiner & Co. Inc.
StatusCANCELLED
Overall Diameter5.813 INCHES NOMINAL IN
Pointer ColorBLACK AND RED
Bezel TypeSLIPS-ON
MaterialPLASTIC CASE
AdjustabilityADJUSTABLE
Scale NamePRESSURE-VACUUM
Dial Size4-1/2 IN. DIA IN
MaterialPLASTIC PROTECTIVE CRYSTAL
Scale Smallest Increment5.0 INCHES OF MERCURY (INHG) AND 1.0 POUNDS PER SQUARE INCH (PSI) LBS
Scale Name for Which Pointer Is DesignedPRESSURE-VACUUM
MaterialCOPPER ALLOY 511 ACTUATING ELEMENT
Pointer TypeINDICATING AND REFERENCE
Mounting MethodSURFACE WALL
Scale Inscription/background ColorBLACK MARKINGS ON WHITE OR SILVERED BACKGROUND
Scale Accuracy1/2 IN. FROM 5 IN. TO 30 IN.; 1/2 PERCENT ENTIRE RANGE IN
Connection Size0.250 IN. NPT DIA IN
Connector Type VentNOT PROVIDED
Scale TypeMULTIPLE
Connection LocationBOTTOM
Graduation Unit30.0 INCHES OF MERCURY AND 10.0 POUNDS PER SQUARE INCH LBS
Connection TypeEXTERNAL
Connection Quantity1
Scale Range+0.0 TO 30.0 INCHES OF MERCURY AND +0.0 TO 100.0 POUNDS PRESSURE PER SQUARE INCH LBS
Actuation TypeSINGLE BOURDON TUBE
Bolt Circle Diameter5.375 INCHES NOMINAL IN
Mounting Hole Diameter0.219 INCHES NOMINAL IN
Mounting Hole Quantity3
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3040-00-448-073812126 INTERCHANGEABLE
Coupling,adjustable
Cummins Power Generation Inc.
3040-00-822-5145 INTERCHANGEABLE
Disc,brake
5950-01-028-341512126 INTERCHANGEABLE
Transformer,power
Standex Electronics, Inc.
5355-01-086-7911RB-67-3 SK-7-M INTERCHANGEABLE
Knob
Rogan Corporation
6540-01-139-761112126 INTERCHANGEABLE
Occluder,eye
Gulden Ophthalmics Inc.
3455-01-219-435212126 INTERCHANGEABLE
Trepanning Tool,machine
Hougen Manufacturing, Inc
5325-01-424-661912126 INTERCHANGEABLE
Insert,panel Fastener
Spx Fluid Power
5915-01-474-6191 INTERCHANGEABLE
Filter,radio Frequency Interfere
5810-01-549-054712126 INTERCHANGEABLE
Plug,code
Teledyne Flir Unmanned Ground Systems, Inc
5120-01-578-3610 INTERCHANGEABLE
Socket,socket Wrench
Cross-Reference Index
Part NumberManufacturer
12126 PRIMARY John Reiner & Co. Inc. (USA)
45-1870-30X100 Ametek, Inc. Div Aerospace & Defense (USA)
Related Parts
3040-00-448-0738INTERCHANGEABLE
COUPLING,ADJUSTABLE
12126
3040-00-822-5145INTERCHANGEABLE
DISC,BRAKE
5950-01-028-3415INTERCHANGEABLE
TRANSFORMER,POWER
12126
5355-01-086-7911INTERCHANGEABLE
KNOB
RB-67-3 SK-7-M
6540-01-139-7611INTERCHANGEABLE
OCCLUDER,EYE
12126
3455-01-219-4352INTERCHANGEABLE
TREPANNING TOOL,MACHINE
12126
5325-01-424-6619INTERCHANGEABLE
INSERT,PANEL FASTENER
12126
5915-01-474-6191INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
5810-01-549-0547INTERCHANGEABLE
PLUG,CODE
12126
5120-01-578-3610INTERCHANGEABLE
SOCKET,SOCKET WRENCH
6530-01-580-8421INTERCHANGEABLE
TRAY,DRAWER,MEDICAL CART
12126
6115-01-609-5681INTERCHANGEABLE
THERMAL ASSEMBLY,EL
12126

Frequently Asked Questions

What is NSN 6685-00-252-3023?

NSN 6685-00-252-3023 is a Gage,compound Pressure-Vacuum,di, manufactured by John Reiner & Co. Inc., classified under FSC 6685 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6685-00-252-3023?

NSN 6685-00-252-3023 has 2 cross-referenced part numbers: 12126 (John Reiner & Co. Inc.), 45-1870-30X100 (Ametek, Inc. Div Aerospace & Defense).

What NSN replaces 6685-00-252-3023?

There are 12 known substitutes for 6685-00-252-3023: 3040-00-448-0738, 3040-00-822-5145, 5950-01-028-3415 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12126?

Key specifications for 12126: Overall Diameter: 5.813 INCHES NOMINAL IN; Pointer Color: BLACK AND RED; Bezel Type: SLIPS-ON; Material: PLASTIC CASE. 28 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-252-3023 still in active supply?

NSN 6685-00-252-3023 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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