4P145

View detailed technical data, stock status, and sourcing information for: 4P145
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for part 4P145 to receive an up to date pricing and availability quote by email.

Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-176-4621

Item Name Code

05488

Assigment Date

12/17/1969 (56 years ago)

poppet flow control device, spring disk loading method, flared (tube) all ends connection style, right-hand all ends thread direction, 3a all ends thread class

Product Characteristics

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

Thread Class: 3a all ends
Thread Direction: right-hand all ends
Flow Control Device: poppet
Disk Loading Method: spring
Connection Style: flared (tube) all ends
Valve Operation Method: automatic
Connection Type: threaded external tube all ends
Adjustable Pressure Range: +3.0 to 7.0 pounds per square inch
Maximum Operating Pressure: 30.0 pounds per square inch single response
Nominal Thread Size: 0.438 inches all ends
Seat Angle: 37.0 degrees all ends
Nominal Outside Diameter Tube Accommodated: 0.250 inches 1st end
Material: aluminum body
Media For Which Designed: air 1st response
Media For Which Designed: fuel/oil, hydrocarbon 2nd response
Style Designator: straight thru note: to be used for valve bodies of one section only.
Thread Series Designator: unf all ends

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
205-062-668-001	Safety Relief Valve
205-062-668-1	Safety Relief Valve
4P145	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-176-4621?

The FSCG of the NSN 4820-00-176-4621 is 4820

Does the NSN 4820-00-176-4621 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-176-4621 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 4820-00-176-4621 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-176-4621 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 4820-00-176-4621 was assigned to the Federal Catalog?

It was assigned 56 years ago, on Wed, Dec 17, 1969