B-310B-1 1/4-IN

View detailed technical data, stock status, and sourcing information for: B-310B-1 1/4-IN
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-218-3300

Item Name Code

05487

Assigment Date

10/10/1985 (40 years ago)

plain, optional end (pipe) all ends connection style, 150.0 fahrenheit single response maximum operating temp, right-hand all ends thread direction, spring disk loading method, disk flow control device

Product Characteristics

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

Thread Direction: right-hand all ends
Flow Control Device: disk
Disk Loading Method: spring
Maximum Operating Temp: 150.0 fahrenheit single response
Connection Style: plain, optional end (pipe) all ends
Valve Operation Method: automatic
Connection Type: threaded internal pipe all ends
Mounting Position: horizontal
Maximum Operating Pressure: 200.0 pounds per square inch single response
Nominal Thread Size: 1.250 inches all ends
Material: copper alloy 836 body
Material: copper alloy 836 seat
Material: rubber butadiene-acrylonitrile class nbr flow control device
Material Document And Classification: astm b62 assn std single material response body
Material Document And Classification: astm b62 assn std single material response seat
Media For Which Designed: air 1st response
Media For Which Designed: gas, inert 2nd response
Style Designator: straight thru
Thread Series Designator: npt all ends
Specification/Standard Data: 81349-mil-v-18436 government specification

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
B-306B-1 1/4-IN	Check Valve
B-310B-1 1/4-IN	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-218-3300?

The FSCG of the NSN 4820-01-218-3300 is 4820

Does the NSN 4820-01-218-3300 have a Schedule B code assigned?

Yes, the Schedule B code is 8481301090

Does NSN 4820-01-218-3300 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 4820-01-218-3300 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-218-3300 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 4820-01-218-3300 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Thu, Oct 10, 1985