PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2-5020Gage,differential,dial Indicatin

Dwyer Instruments Inc · NSN 6685-01-174-8417 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-01-174-8417 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-174-8417. Primary manufacturer part number: 2-5020.
Features
  • Gage,differential,dial Indicatin — FSC 6685
  • Overall Diameter: 3.500 INCHES NOMINAL IN
  • Connection Quantity: 2
  • Scale Type: SINGLE
  • Scale Range: +0.0 TO 20.0 INCHES OF WATER IN
  • Graduation Unit: 1.0 POUNDS PER SQUARE INCH LBS
  • Connector Type Vent: NOT PROVIDED
  • Connection Location: BOTTOM
Applications
  • Applications requiring Rubber Silicone Class Q Actuating Element construction
General Description

The Gage,differential,dial Indicatin, cataloged under National Stock Number 6685-01-174-8417, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Dwyer Instruments Inc. Government technical data includes 23 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-01-174-8417
Primary Part Number2-5020
Item NameGage,differential,dial Indicatin
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerDwyer Instruments Inc
StatusACTIVE
Overall Diameter3.500 INCHES NOMINAL IN
Connection Quantity2
Scale TypeSINGLE
Scale Range+0.0 TO 20.0 INCHES OF WATER IN
Graduation Unit1.0 POUNDS PER SQUARE INCH LBS
Connector Type VentNOT PROVIDED
Connection LocationBOTTOM
Scale AccuracyPORM 5 PCT FULL RANGE
Dial Size3-1/2 IN. DIA IN
Mounting MethodSURFACE
Connection Size0.125 IN. NPT DIA IN
Scale Inscription/background ColorBLACK MARKINGS ON WHITE BACKGROUND
Scale Smallest Increment0.01 POUNDS PER SQUARE INCH (PSI) LBS
Connection TypeEXTERNAL
Pointer TypeINDICATING
Actuation TypeDIAPHRAGM
Scale NameDIFFERENTIAL PRESSURE
Pointer ColorBLACK
AdjustabilityADJUSTABLE
Surface TreatmentPLASTIC POLYCARBONATE CASE
MaterialRUBBER SILICONE CLASS Q ACTUATING ELEMENT
MaterialSTEEL CASE
MaterialPLASTIC PROTECTIVE CRYSTAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5360-00-300-753625020 INTERCHANGEABLE
Spring,valve
Hdt Expeditionary Systems Inc
4730-00-569-9649250-20 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Lenz Inc Dba the Lenz Company
2935-00-622-7640 INTERCHANGEABLE
Cooler,lubricating Oil,engine
6125-00-635-3770 INTERCHANGEABLE
Dynamotor-Power Supply
5905-00-853-3904 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
5120-01-074-5211THD420L INTERCHANGEABLE
Inserter,screw Thread Insert
Howmet Global Fastening Systems Inc. Div Tridair Products
4730-01-178-0297 INTERCHANGEABLE
Coupling,pipe
4710-01-185-44808J4875 INTERCHANGEABLE
Tube Assembly,metal
Caterpillar Inc Div Caterpillar Defense
4730-01-323-508925020-1-TN INTERCHANGEABLE
Coupling,pipe
Rhba Acquisitions, Llc Dba Red Head Brass
5998-01-345-1547 INTERCHANGEABLE
Circuit Card Assembly
Cross-Reference Index
Part NumberManufacturer
2-5020 PRIMARY Dwyer Instruments Inc (USA)
Related Parts
5360-00-300-7536INTERCHANGEABLE
SPRING,VALVE
25020
4730-00-569-9649INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
250-20
2935-00-622-7640INTERCHANGEABLE
COOLER,LUBRICATING OIL,ENGINE
6125-00-635-3770INTERCHANGEABLE
DYNAMOTOR-POWER SUPPLY
5905-00-853-3904INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
5120-01-074-5211INTERCHANGEABLE
INSERTER,SCREW THREAD INSERT
THD420L
4730-01-178-0297INTERCHANGEABLE
COUPLING,PIPE
4710-01-185-4480INTERCHANGEABLE
TUBE ASSEMBLY,METAL
8J4875
4730-01-323-5089INTERCHANGEABLE
COUPLING,PIPE
25020-1-TN
5998-01-345-1547INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
6515-01-348-8208INTERCHANGEABLE
OTOSCOPE
238-3
6650-01-459-1708INTERCHANGEABLE
FIXTURE,TEST,OPTICAL EQUIPMENT
25020

Frequently Asked Questions

What is NSN 6685-01-174-8417?

NSN 6685-01-174-8417 is a Gage,differential,dial Indicatin, manufactured by Dwyer Instruments Inc, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-01-174-8417?

NSN 6685-01-174-8417 has 1 cross-referenced part number: 2-5020 (Dwyer Instruments Inc).

What NSN replaces 6685-01-174-8417?

There are 12 known substitutes for 6685-01-174-8417: 5360-00-300-7536, 4730-00-569-9649, 2935-00-622-7640 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2-5020?

Key specifications for 2-5020: Overall Diameter: 3.500 INCHES NOMINAL IN; Connection Quantity: 2; Scale Type: SINGLE; Scale Range: +0.0 TO 20.0 INCHES OF WATER IN. 25 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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