6685-00-988-8321

Find complete technical information, availability, and procurement data for: 6685-00-988-8321
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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

6685-00-988-8321

Item Name Code

07424

Assigment Date

11/02/1966 (59 years ago)

A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

0.173 inches nominal mounting hole diameter, 1.880 inches nominal overall depth, 3.560 inches nominal overall diameter, 3 mounting hole quantity, 3.188 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: 1.880 inches nominal
Bolt Circle Diameter: 3.188 inches nominal
Mounting Hole Diameter: 0.173 inches nominal
Mounting Hole Quantity: 3
Overall Diameter: 3.560 inches nominal
Case Material: unable to decode
Graduation Unit: 5.0 inches and 5.0 pounds per square inch
Actuation Type: single bourdon tube
Adjustability: nonadjustable
Scale Range: +0.0 to 30.0 inches of mercury and +0.0 to 30.0 pounds pressure per square inch
Scale Name: pressure and pressure-vacuum
Dial Size: 2-1/2 in. dia
Connection Quantity: 1
Pointer Color: black
Pointer Type: indicating
Scale Type: multiple
Scale Smallest Increment: 1.0 inches and 1.0 pounds per square inch
Connection Type: external
Mounting Method: flush panel
Scale Accuracy: 2 pct middle half of range,3 pct remainder of range
Actuating Element Material: unable to decode
Scale Inscription/Background Color: black figures on white background
Scale Name For Which Pointer Is Designed: pressure and vacuum
Connection Location: back
Bezel Type: thread
Protective Crystal Material: unable to decode
Connection Size: 0.125 in. npt dia
Connector Type Vent: not provided
Material: copper alloy
Surface Treatment: chromium

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
Q80230-14	Di Compound Pressure-Vacuum Gage

FAQs

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

What is the FSCG of the NSN 6685-00-988-8321?

The FSCG of the NSN 6685-00-988-8321 is 6685

Does the NSN 6685-00-988-8321 have a Schedule B code assigned?

Yes, the Schedule B code is 9026200000

Does NSN 6685-00-988-8321 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 6685-00-988-8321 contain precious materials?

Precious metal content is unknown

Does NSN 6685-00-988-8321 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 6685-00-988-8321 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Wed, Nov 2, 1966