AA31308H

View detailed technical data, stock status, and sourcing information for: AA31308H
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-289-4141

Item Name Code

05488

Assigment Date

01/01/1963 (63 years ago)

3b all ends thread class, spring disk loading method, disk flow control device, right-hand all ends thread direction, 1.750 inches offset distance

Product Characteristics

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

Thread Class: 3b all ends
Thread Direction: right-hand all ends
Offset Distance: 1.750 inches
Flow Control Device: disk
Disk Loading Method: spring
Valve Discharge Flow Rate: 2552.4 pounds per hour
Maximum Operating Temp: 160.0 fahrenheit single response
Connection Style: gasket seal(boss) all ends
Valve Operation Method: automatic
Connection Type: threaded internal boss all ends
Mounting Facility: threaded fastener
Adjustable Pressure Range: +2300.0 to 3850.0 pounds per square inch
Maximum Operating Pressure: 3850.0 pounds per square inch single response
Nominal Thread Size: 0.750 inches all ends
Material: aluminum alloy overall
Media For Which Designed: hydraulic fluid, phosphate-ester base single response
Style Designator: tee w/offset
Thread Series Designator: unf all ends

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
1650-00-315-6182	No Name Available	01/01/1963
1650-00-528-2841	No Name Available	01/01/1963
1650-00-529-4208	No Name Available	01/01/1963
1650-00-529-4220	No Name Available	01/01/1963
1650-00-594-4605	No Name Available	01/01/1963
4820-00-631-3852	No Name Available	01/01/1963
1650-00-821-5014	No Name Available	01/01/1962

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
10673282-2	Safety Relief Valve
31308H	Safety Relief Valve
AA31308H	Safety Relief Valve
AN6279-8CD	Safety Relief Valve
HPLVA1	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-289-4141?

The FSCG of the NSN 4820-00-289-4141 is 4820

Does the NSN 4820-00-289-4141 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-289-4141 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 4820-00-289-4141 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-289-4141 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 4820-00-289-4141 was assigned to the Federal Catalog?

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