6685-00-684-1338

Find complete technical information, availability, and procurement data for: 6685-00-684-1338
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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

6685-00-684-1338

Item Name Code

07420

Assigment Date

01/01/1963 (63 years ago)

A valve designed to automatically maintain within close limits a predetermined outlet pressure which may be adjustable within a specified range regardless of the higher fluctuating or constant inlet pressure. It is designed for use with compressed gas(es) and various liquids and may include gauges. It may be inline or cartridge (manifold) design. Excludes:regulator, pressure, medical gas administration apparatus; regulator, oxygen, barometric continuous flow; regulator, oxygen demand; regulator, oxygen diluter demand; and valve(1), fluid pressure regulating, aircraft.

3.687 inches nominal overall depth, 0.1695 inches nominal mounting hole diameter, 3.250 inches nominal overall width, 3.250 inches nominal overall height, 3.500 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: 3.687 inches nominal
Bolt Circle Diameter: 3.500 inches nominal
Overall Height: 3.250 inches nominal
Overall Width: 3.250 inches nominal
Mounting Hole Diameter: 0.1695 inches nominal
Mounting Hole Quantity: 3
Case Material: unable to decode
Graduation Unit: 1.0 inches of mercury and 20.0 inches of mercury
Actuation Type: diaphragm
Adjustability: adjustable
Scale Range: +0.0 to 10.0 inches of mercury and +0.0 to 200.0 inches of mercury
Scale Name: absolute pressure
Dial Size: 2.812 in. dia
Connection Quantity: 1
Pointer Color: black and white
Pointer Type: indicating
Scale Marking: absolute pressure
Scale Type: multiple
Scale Smallest Increment: 0.5 inches of mercury and 10.0 inches of mercury
Connection Type: internal
Mounting Method: flush panel
Scale Accuracy: 1 pct entire range
Actuating Element Material: unable to decode
Scale Inscription/Background Color: white figures on black background
Scale Name For Which Pointer Is Designed: pressure
Connection Location: back
Bezel Type: slips-on
Protective Crystal Material: unable to decode
Connection Size: 1/8 in. npt
Connector Type Vent: not provided
Special Features: tech order 5p2-2-38-4; sensitive absolute pressure gage
Material: aluminum
Surface Treatment: enamel
Reference Number Differentiating Characteristics: as differentiated by part no. 5se00139-1,fscm 28638

Replaces National Stock Numbers

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

NSN	Name	Date
6685-00-726-0723	No Name Available	07/29/1967
6685-00-885-0705	No Name Available	12/01/1975

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
5SE00139-1	Dial Indi Absolute Pressure Gage
B0838510011	Dial Indi Absolute Pressure Gage

FAQs

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

What is the FSCG of the NSN 6685-00-684-1338?

The FSCG of the NSN 6685-00-684-1338 is 6685

Does the NSN 6685-00-684-1338 have a Schedule B code assigned?

Yes, the Schedule B code is 9026200000

Does NSN 6685-00-684-1338 require demilitarization?

"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"

Does NSN 6685-00-684-1338 contain precious materials?

Item does not contain precious metal.

Does NSN 6685-00-684-1338 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 6685-00-684-1338 was assigned to the Federal Catalog?

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