6685-00-081-3504

Find complete technical information, availability, and procurement data for: 6685-00-081-3504
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Federal Supply Group

Instruments and Laboratory Equipment

Federal Supply Classification

6685 Humidity Measuring and Controlling Instruments, Temperature and Pressure

National Stock Number

6685-00-081-3504

Item Name Code

07428

Assigment Date

01/01/1963 (63 years ago)

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.

0.219 inches nominal mounting hole diameter, 2.187 inches nominal overall depth, 3 mounting hole quantity, 6.062 inches nominal overall diameter, 5.375 inches nominal bolt circle diameter

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Overall Depth: 2.187 inches nominal
Bolt Circle Diameter: 5.375 inches nominal
Mounting Hole Diameter: 0.219 inches nominal
Mounting Hole Quantity: 3
Overall Diameter: 6.062 inches nominal
End Item Identification: support equip.,h-3 helicopter; b-52 aircraft; f-4 aircraft; aircraft,hercules c-130
Graduation Unit: 10.0 pounds
Actuation Type: double bourdon tube
Adjustability: adjustable
Scale Range: +0.0 to 100.0 pounds pressure per square inch
Scale Name: pressure
Dial Size: 4-1/2 in. dia
Connection Quantity: 2
Pointer Color: black and red
Pointer Type: indicating
Scale Type: single
Scale Smallest Increment: 1.0 pounds
Connection Type: external
Mounting Method: flush panel and stud
Scale Accuracy: 1 pct entire range
Scale Inscription/Background Color: black figures on white background
Connection Location: back
Bezel Type: hinge
Connection Size: 0.250 in. npt dia
Mounting Connection Location: back and lower side
Connector Type Vent: not provided
Special Features: rubber safety disc at back of case
Material: aluminum and steel case
Material: bronze actuating element
Material: glass protective crystal
Surface Treatment: enamel case

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
6685-00-829-1968	No Name Available	06/02/1971
6685-00-938-7893	No Name Available	09/01/2023
6685-01-011-0531	No Name Available	11/01/1996

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
1339AXRB	Dial Indicating Pressure Gage
45-1339A02BXRB100	Dial Indicating Pressure Gage

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 6685-00-081-3504?

The FSCG of the NSN 6685-00-081-3504 is 6685

Does the NSN 6685-00-081-3504 have a Schedule B code assigned?

Yes, the Schedule B code is 9026200000

Does NSN 6685-00-081-3504 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 6685-00-081-3504 contain precious materials?

Item does not contain precious metal.

Does NSN 6685-00-081-3504 contain hazardous materials?

Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

When the NSN 6685-00-081-3504 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963