Product Details | DIAL INDICATING DIFFERENTIAL GAGE

6685-00-256-6591 An instrument designed to measure air, gas, fluid, and vapor differential by means of a pressure sensitive element(s) which transmits energy, by direct linkage, to the indicating pointer of a scale calibrated to units of pressure. The scale may indicate in units of pressure, quantity, or flow.

Part Alternates: 20JCXXXXXXXE5BBXXX01, 20JCXXXXXXXE5BBXXX03, 20WCXXXXXXXE5BBXXX02, 20WCXXXXXXXXE5BBXXX02, 6685-00-256-6591, 00-256-6591, 6685002566591, 002566591

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

Supply Group (FSG) NSN Assign. NIIN
66 17 MAR 1971 00-256-6591

Demand History | NSN 6685-00-256-6591

Part Number Request Date QTY Origin
6685-00-256-6591 2015-08-224 8 DIBBS
6685-00-256-6591 2015-08-216 8 DIBBS
6685-00-256-6591 2015-07-207 1 DIBBS

Cross Reference | NSN 6685-00-256-6591

Part Number Cage Code Manufacturer
20JCXXXXXXXE5BBXXX01 05991 CAMERON TECHNOLOGIES US, INC. DBA CAMERON'S MEASUREMENT SYSTEMS
20JCXXXXXXXE5BBXXX03 05991 CAMERON TECHNOLOGIES US, INC. DBA CAMERON'S MEASUREMENT SYSTEMS
20WCXXXXXXXE5BBXXX02 05991 CAMERON TECHNOLOGIES US, INC. DBA CAMERON'S MEASUREMENT SYSTEMS
20WCXXXXXXXXE5BBXXX02 05991 CAMERON TECHNOLOGIES US, INC. DBA CAMERON'S MEASUREMENT SYSTEMS

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Technical Data | NSN 6685-00-256-6591

Characteristic Specifications
ACTUATION TYPE BELLOWS
ACTUATING ELEMENT MATERIAL STEEL, CORROSION RESISTING, AISI 316
SCALE TYPE SINGLE
SCALE NAME DIFFERENTIAL PRESSURE
SCALE RANGE 0.0 TO 30.0 INCHES OF WATER
SCALE ACCURACY 1 PCT ENTIRE RANGE
GRADUATION UNIT ANY ACCEPTABLE
SCALE SMALLEST INCREMENT ANY ACCEPTABLE
SCALE INSCRIPTION/BACKGROUND COLOR BLACK MARKINGS ON WHITE BACKGROUND
DIAL SIZE 4-1/2 IN. DIA
SCALE MARKING SHOCKPROOF
POINTER TYPE INDICATING
ADJUSTABILITY ADJUSTABLE
POINTER COLOR BLACK
CASE MATERIAL ALUMINUM, DIE CAST
CASE SURFACE TREATMENT ENAMEL, BAKED
OVERALL DIAMETER 5.594 INCHES NOMINAL
OVERALL DEPTH 2.781 INCHES NOMINAL
BEZEL TYPE ANY ACCEPTABLE
MATERIAL ALUMINUM
SURFACE TREATMENT ANY ACCEPTABLE
PROTECTIVE CRYSTAL MATERIAL GLASS
CONNECTION QUANTITY 2 AND 2
CONNECTION TYPE INTERNAL
CONNECTION LOCATION BOTTOM AND TOP
CONNECTION SIZE 0.438 IN. UNF DIA
MOUNTING METHOD BRACKET AND PANEL
CONNECTOR TYPE VENT NOT PROVIDED
SPECIAL FEATURES NUCLEAR POWER PLANTS;
MANUFACTURERS CODE 05991
DESIGN CONTROL REFERENCE 20WCXXXXXXXE5BBXXX02

Restrictions/Controls & Freight Information | NSN 6685-00-256-6591

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:BMunitions List Item - Mutilation (MUT) to the point of scrap required. (Formerly: Demilitarization not required. Trade Security Controls (TSCs) required at disposition.)
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
NMF Description 121570 GAGES AIR LIQUID LEVEL PRESSURE
Less than car load rating
Less than truck load rating J 100.2
Water commodity Code 651 unknown
Originating Activity Code HD Naval Inventory Control Point
Mechanicsburg, PA 17055-0788
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable

Management | NSN 6685-00-256-6591

Category Code Description
Cognizance Codes3BNavy-owned stocks of field level repairable DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
ReparabilityDField Level Reparables
Acquisition Advice CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each