642B9-1/8-2

This page provides complete and verified information for part number 642B9-1/8-2, NSN: 4820-00-760-7677

You’ll find detailed technical specifications, product attributes, condition classification, and real-time stock availability. All data is based on official records and meets industry standards for defense, aerospace, and industrial sourcing. Whether you’re performing a parts audit, validating compliance, or preparing a purchase order, this part listing supports accurate and efficient procurement.

Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-760-7677

Item Name Code

05488

Assigment Date

10/31/1969 (56 years ago)

right-hand all ends thread direction, integral bonnet attachment method, inside screw bonnet type, poppet flow control device, spring disk loading method

Characteristics

Below are the official specifications and performance details for this part, including technical data, material composition, and compliance information.

Thread Direction: right-hand all ends
Flow Control Device: poppet
Bonnet Type: inside screw
Bonnet Attachment Method: integral
Disk Loading Method: spring
Maximum Operating Temp: 225.0 fahrenheit single response
Connection Style: plain,optional end(pipe) all ends
Valve Operation Method: automatic
Connection Type: threaded internal pipe all ends
Features Provided: pressure tight outlet side
Adjustable Pressure Range: +800.0 to 1500.0 pounds per square inch
Maximum Operating Pressure: 1500.0 pounds per square inch single response
Nominal Thread Size: 0.125 inches all ends
Opening Pressure Setting: 1000.0 pounds per square inch
Material: steel comp 303 overall
Material Document And Classification: 66 fed std single material response overall
Media For Which Designed: fuel/oil, hydrocarbon 1st response
Media For Which Designed: water-oil-gas 2nd response
Surface Treatment: passivate
Style Designator: angle
Thread Series Designator: anpt all ends

Related Parts & Specifications

This NSN includes a range of related parts designed for specific operational needs. Review each item below to find in-depth specifications, functional details, and guidance for correct application and replacement.

Part Number	Name
642B9-1-8SS2	Safety Relief Valve
642B9-1/8-2	Safety Relief Valve

FAQs

Get insights on installation procedures, operating conditions, care instructions, industry regulations, and common issues. FAQs below provide key information for 642B9-1/8-2

What is the FSCG of the NSN 4820-00-760-7677?

The FSCG of the NSN 4820-00-760-7677 is 4820

Does the NSN 4820-00-760-7677 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-760-7677 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 4820-00-760-7677 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-760-7677 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 4820-00-760-7677 was assigned to the Federal Catalog?

It was assigned 56 years ago, on Fri, Oct 31, 1969