PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C500-30V150P2 1-2IN1-4LMGage,compound Pressure-Vacuum,di

Ametek, Inc. Div Aerospace & Defense · NSN 6685-00-202-3966 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-202-3966 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-202-3966. Primary manufacturer part number: C500-30V150P2 1-2IN1-4LM.
Features
  • Gage,compound Pressure-Vacuum,di — FSC 6685
  • Connection Location: BOTTOM
  • Bezel Type: SLIPS-ON
  • Mounting Method: RIGID STEM
  • Connection Size: 0.250 IN. NPT DIA IN
  • Material: PLASTIC PROTECTIVE CRYSTAL
  • Pointer Type: INDICATING
  • Scale Smallest Increment: 10.0 INCHES AND 5.0 POUNDS PER SQUARE INCH (PSI) LBS
Applications
  • Applications requiring Plastic Protective Crystal construction
General Description

The Gage,compound Pressure-Vacuum,di, cataloged under National Stock Number 6685-00-202-3966, 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 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 17 commercial cross-references from 7 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
NSN6685-00-202-3966
Primary Part NumberC500-30V150P2 1-2IN1-4LM
Item NameGage,compound Pressure-Vacuum,di
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAmetek, Inc. Div Aerospace & Defense
StatusCANCELLED
Connection LocationBOTTOM
Bezel TypeSLIPS-ON
Mounting MethodRIGID STEM
Connection Size0.250 IN. NPT DIA IN
MaterialPLASTIC PROTECTIVE CRYSTAL
Pointer TypeINDICATING
Scale Smallest Increment10.0 INCHES AND 5.0 POUNDS PER SQUARE INCH (PSI) LBS
Graduation Unit30.0 INCHES AND 25.0 POUNDS PER SQUARE INCH LBS
Scale Range+0.0 TO 30.0 INCHES AND +0.0 TO 150.0 POUNDS PRESSURE PER SQUARE INCH LBS
MaterialPLASTIC PROTECTIVE CRYSTAL
Nondefinitive Spec/std Data3 CLASS AND 2 1/2 SIZE AND 3 TYPE
Dial Size2 1/2 IN. DIA IN
Connection TypeEXTERNAL
Pointer ColorBLACK
Scale NamePRESSURE-VACUUM
Mounting MethodRIGID STEM
Connection LocationBOTTOM
MaterialCOPPER ALLOY ACTUATING ELEMENT
Connector Type VentNOT PROVIDED
Actuation TypeBOURDON TUBE
Scale Inscription/background ColorBLACK MARKINGS ON WHITE BACKGROUND
Bezel TypeSLIPS-ON
Connection Quantity1
AdjustabilityADJUSTABLE
Surface TreatmentENAMEL
Scale TypeMULTIPLE
Nondefinitive Spec/std Data3 CLASS AND 2 1/2 SIZE AND 3 TYPE
Scale Inscription/background ColorBLACK MARKINGS ON WHITE BACKGROUND
Connection Size0.250 IN. NPT DIA IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6685-00-068-2699J1816 INTERCHANGEABLE
Gage,compound Pressure-Vacuum,di
Bellofram Corporation
6685-00-081-770812293-0 INTERCHANGEABLE
Gage,compound Pressure-Vacuum,di
Ametek, Inc. Div Aerospace & Defense
6685-00-087-6293 INTERCHANGEABLE
Gage,compound Pressure-Vacuum,di
6685-00-104-9625 INTERCHANGEABLE
Gage,compound Pressure-Vacuum,di
2825-00-148-1680800-899-90X INTERCHANGEABLE
Governor with Conve
Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions
5975-00-152-1144 INTERCHANGEABLE
Box Connector,electrical
5331-00-165-1940M83248/1-213 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
6685-00-248-6887047104 INTERCHANGEABLE
Gage,vacuum,indicating
Ametek, Inc. Div Aerospace & Defense
6685-00-248-6975046646A INTERCHANGEABLE
Gage,compound Pressure-Vacuum,di
Ametek, Inc. Div Aerospace & Defense
3020-00-274-60626X1500X1 INTERCHANGEABLE
Gear,spur
David Brown Hydraulics Inc Dba Hydreco
Cross-Reference Index
Part NumberManufacturer
C500-30V150P2 1-2IN1-4LM Ametek, Inc. Div Aerospace & Defense (USA)
504998PC2 Johnson Controls Navy Systems, Llc (USA)
C500 Ametek, Inc. Div Aerospace & Defense (USA)
GGG76 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
3DP Bellofram Corporation (USA)
505022REVAPC18 Johnson Controls Navy Systems, Llc (USA)
26-901 Johnson Controls Navy Systems, Llc (USA)
P201370V Johnson Controls Navy Systems, Llc (USA)
47411-0 Ametek, Inc. Div Aerospace & Defense (USA)
25-1000-2L30V150 Ashcroft Inc Dba Heise (USA)
508856REVAPC18 Johnson Controls Navy Systems, Llc (USA)
ASME B-40.100 The American Society of Mechanical Engineers (USA)
505S30V150P2 1-2IN1-4LM Ametek, Inc. Div Aerospace & Defense (USA)
26-5068PK Johnson Controls Navy Systems, Llc (USA)
496503ITEM18 Johnson Controls Navy Systems, Llc (USA)
505021REVAPC6 Johnson Controls Navy Systems, Llc (USA)
2 1-2 3DP1-4BM30X150R12 Desco Corp Marsh Bellofram Div (USA)
Related Parts
6685-00-068-2699INTERCHANGEABLE
GAGE,COMPOUND PRESSURE-VACUUM,DI
J1816
6685-00-081-7708INTERCHANGEABLE
GAGE,COMPOUND PRESSURE-VACUUM,DI
12293-0
6685-00-087-6293INTERCHANGEABLE
GAGE,COMPOUND PRESSURE-VACUUM,DI
6685-00-104-9625INTERCHANGEABLE
GAGE,COMPOUND PRESSURE-VACUUM,DI
2825-00-148-1680INTERCHANGEABLE
GOVERNOR WITH CONVE
800-899-90X
5975-00-152-1144INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
5331-00-165-1940INTERCHANGEABLE
O-RING
M83248/1-213
6685-00-248-6887INTERCHANGEABLE
GAGE,VACUUM,INDICATING
047104
6685-00-248-6975INTERCHANGEABLE
GAGE,COMPOUND PRESSURE-VACUUM,DI
046646A
3020-00-274-6062INTERCHANGEABLE
GEAR,SPUR
6X1500X1
6130-00-306-3159INTERCHANGEABLE
RECTIFIER,METALLIC
57B41-153
3433-00-399-7037INTERCHANGEABLE
TORCH OUTFIT,OXYHYDROGEN CUTTING
505976

Frequently Asked Questions

What is NSN 6685-00-202-3966?

NSN 6685-00-202-3966 is a Gage,compound Pressure-Vacuum,di, manufactured by Ametek, Inc. Div Aerospace & Defense, classified under FSC 6685 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6685-00-202-3966?

NSN 6685-00-202-3966 has 17 cross-referenced part numbers: C500-30V150P2 1-2IN1-4LM (Ametek, Inc. Div Aerospace & Defense), 504998PC2 (Johnson Controls Navy Systems, Llc), C500 (Ametek, Inc. Div Aerospace & Defense), GGG76 (Federal Specifications Promulgated by General Services Administration Washington DC), 3DP (Bellofram Corporation) and 12 more.

What NSN replaces 6685-00-202-3966?

There are 12 known substitutes for 6685-00-202-3966: 6685-00-068-2699, 6685-00-081-7708, 6685-00-087-6293 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of C500-30V150P2 1-2IN1-4LM?

Key specifications for C500-30V150P2 1-2IN1-4LM: Overall Depth: 1.094 INCHES NOMINAL IN; Connection Location: BOTTOM; Bezel Type: SLIPS-ON; Mounting Method: RIGID STEM. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-202-3966 still in active supply?

NSN 6685-00-202-3966 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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