4820-00-788-0417

Find complete technical information, availability, and procurement data for: 4820-00-788-0417
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-788-0417

Item Name Code

05488

Assigment Date

01/01/1960 (66 years ago)

A parts kit consisting of a group of parts and/or subassemblies, not having the same basic name, for repairing or replacing worn parts of a gasoline engine.

piston flow control device, 3b all ends thread class, right-hand all ends thread direction, 0.250 inches offset distance, spring disk loading method

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: 0.250 inches
Flow Control Device: piston
Disk Loading Method: spring
Renewable Seat Ring Type: pressed-in
Connection Style: gasket seal(boss) all ends
Valve Operation Method: automatic
Connection Type: threaded internal boss all ends
Features Provided: pressure tight outlet side and valve stem lock shield
Nominal Thread Size: 0.437 inches all ends
Center To Center Distance: 0.313 inches
Nominal Outside Diameter Tube Accommodated: 0.250 inches all ends
Special Features: tapped minus 2 thds in relief port
Material: aluminum alloy body
Material: plastic flow control device
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Below is a list of NSNs that have been officially superseded by this NSN: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
1660-00-716-1880	No Name Available	12/07/1965

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
519-1742	Safety Relief Valve
B20C30	Safety Relief Valve
P309N	Safety Relief Valve
P309N60PSI	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-788-0417?

The FSCG of the NSN 4820-00-788-0417 is 4820

Does the NSN 4820-00-788-0417 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-788-0417 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 4820-00-788-0417 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-788-0417 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 4820-00-788-0417 was assigned to the Federal Catalog?

It was assigned 66 years ago, on Fri, Jan 1, 1960