AA444PF4LW

View detailed technical data, stock status, and sourcing information for: AA444PF4LW
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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

6685-00-837-3522

Item Name Code

07428

Assigment Date

01/01/1962 (64 years ago)

1.812 inches nominal overall depth, 5.500 inches nominal bolt circle diameter, 3 mounting hole quantity, 0.281 inches nominal mounting hole diameter, 5.875 inches nominal overall 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: 1.812 inches nominal
Bolt Circle Diameter: 5.500 inches nominal
Mounting Hole Diameter: 0.281 inches nominal
Mounting Hole Quantity: 3
Overall Diameter: 5.875 inches nominal
End Item Identification: support equipment,f-4 aircraft; support equipment,a-7 aircraft; support equipment,f-16 aircraft
Graduation Unit: 10.000 pounds per square inch
Actuation Type: single 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: 1
Pointer Color: black
Pointer Type: indicating
Scale Type: single
Scale Smallest Increment: 1.000 pounds per square inch
Connection Type: external
Mounting Method: surface wall
Scale Accuracy: 1/2 of 1 pct entire range
Scale Inscription/Background Color: black figures on white background
Connection Location: bottom
Bezel Type: thread
Connection Size: 0.250 in. npt
Connector Type Vent: not provided
Special Features: solid wall safety plate between dial and movement,spring mtd safety/release/blow-out plate across back of case
Color: black case
Material: aluminum case
Material: glass protective crystal
Material: steel corrosion resisting actuating element
Surface Treatment: paint crackle finish case

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
6685-00-013-9969	No Name Available	09/01/2023
6685-00-066-2813	No Name Available	01/01/1976
6685-00-234-8988	No Name Available	07/01/1992
6685-00-514-3726	No Name Available	01/01/1976
6685-00-800-7721	No Name Available	05/21/1980
6685-00-919-5284	No Name Available	01/01/1976
6685-00-919-8664	No Name Available	09/01/2023
6685-00-926-8334	No Name Available	09/01/1992
6685-00-983-6719	No Name Available	02/01/2002
6685-01-023-0495	No Name Available	03/01/1983

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
176C33C	Dial Indicating Pressure Gage
1WQF03577AKA460	Dial Indicating Pressure Gage
401-60133-80	Dial Indicating Pressure Gage
45-1379SS02L100	Dial Indicating Pressure Gage
AA444PF4LW	Dial Indicating Pressure Gage

FAQs

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

What is the FSCG of the NSN 6685-00-837-3522?

The FSCG of the NSN 6685-00-837-3522 is 6685

Does the NSN 6685-00-837-3522 have a Schedule B code assigned?

Yes, the Schedule B code is 9026200000

Does NSN 6685-00-837-3522 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 6685-00-837-3522 contain precious materials?

Item does not contain precious metal.

Does NSN 6685-00-837-3522 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 6685-00-837-3522 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962