Product Details | DIAL INDICATING PRESSURE GAGE

6685-01-027-5903 An instrument designed to measure air, gas, fluid, and vapor pressure by means of an internal pressure sensitive element (bellows, bourdon tube, transducer/transmitter and the like) which transmits energy, by direct linkage, to the indicating pointer of a scale or a digital display, calibrated in units of pressure. It may include a temperature equivalent scale. For items that do not have an internal pressure sensitive element see INDICATOR, PRESSURE.205138600004220000042400027Safety and Rescue Equipment66200018Engine Instruments66850073Pressure, Temperature, and Humidity Measuring and Controlling Instruments

Part Alternates: 1RBF23330ATC002, 1-RBF-23330-ATC-002, 1RBF23370ATC001, 1-RBF-23370-ATC-001, 4 1-2 1FMSU 1-4LBM600, 4121FMSU14LBM600, 65166, 68427, 6685-01-027-5903, 01-027-5903, 6685010275903, 010275903

Instruments and Laboratory Equipment | Pressure, Temperature, and Humidity Measuring and Controlling Instruments

Supply Group (FSG) NSN Assign. NIIN
66 19 SEP 1976 01-027-5903

Demand History | NSN 6685-01-027-5903

Part Number Request Date QTY Origin
65166 2025-09-262 1 Thailand
65166 2025-09-261 1 Thailand
6685-01-027-5903 2019-02-51 1 us
6685-01-027-5903 2010-04-120 23 DIBBS
6685-01-027-5903 2010-03-89 46 DIBBS
6685-01-027-5903 2009-06-163 44 DIBBS
6685-01-027-5903 2009-06-160 20 DIBBS

Cross Reference | NSN 6685-01-027-5903

Part Number Cage Code Manufacturer
1-RBF-23330-ATC-002 38508 DESCO CORP MARSH BELLOFRAM DIV
1-RBF-23370-ATC-001 01170 BELLOFRAM CORPORATION DBA MARSH-BELLOFRAM
1-RBF-23370-ATC-001 38508 DESCO CORP MARSH BELLOFRAM DIV
4 1-2 1FMSU 1-4LBM600 38508 DESCO CORP MARSH BELLOFRAM DIV
65166 16004 DAVEY COMPRESSOR CO DIV OF KECO INDUSTRIES INC
65166 5RQL2 DRS ENVIRONMENTAL SYSTEMS, INC. DBA D R S
68427 16004 DAVEY COMPRESSOR CO DIV OF KECO INDUSTRIES INC

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Technical Data | NSN 6685-01-027-5903

Characteristic Specifications
ACTUATION TYPE BOURDON TUBE
ACTUATING ELEMENT MATERIAL BRASS
SCALE TYPE SINGLE
SCALE NAME PRESSURE
SCALE RANGE 0.0 TO 600.0 POUNDS PRESSURE PER SQUARE INCH
SCALE ACCURACY PORM 1 PCT FULL RANGE
GRADUATION UNIT 50.0 POUNDS PER SQUARE INCH
SCALE SMALLEST INCREMENT 5.0 POUNDS PER SQUARE INCH
SCALE INSCRIPTION/BACKGROUND COLOR BLACK MARKINGS ON WHITE BACKGROUND
DIAL SIZE 4-1/2 IN. DIA
POINTER TYPE INDICATING
ADJUSTABILITY ADJUSTABLE
POINTER COLOR BLACK
CASE MATERIAL STEEL
CASE SURFACE TREATMENT ENAMEL, BLACK
OVERALL DIAMETER 6.188 INCHES NOMINAL
OVERALL DEPTH 1.765 INCHES NOMINAL
BEZEL TYPE SLIPS-ON
MATERIAL STEEL
SURFACE TREATMENT ENAMEL, BLACK
PROTECTIVE CRYSTAL MATERIAL PLASTIC, ACRYLIC
CONNECTION QUANTITY 1
CONNECTION TYPE EXTERNAL
CONNECTION LOCATION LOWER BACK
CONNECTION SIZE 0.250 IN. NPT DIA
MOUNTING METHOD CLAMP AND FLUSH PANEL AND STUD
STUD QUANTITY 2
STUD LOCATION BACK
CONNECTOR TYPE VENT NOT PROVIDED

Restrictions/Controls & Freight Information | NSN 6685-01-027-5903

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodePThere is no information in the HMIS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
No Freight Information