ASIB102A1-3.5IN

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-249-3641

Item Name Code

05482

Assigment Date

02/11/1987 (39 years ago)

A valve having a flat or tapered disk (gate) which moves transversely to the axis of flow by rotating or sliding movements of the stem to open or close the orifice. It may also contain an oval or rectangular shaped slide which may be manually, motor, or pressure operated through the means of an arm or arm assembly. The body flange may be designed to accommodate tube type connectors. It may or may not contain thermal relief features. Includes valve (gate) specifically designed for the control of fluid systems in aircraft or missiles.

8 bolt hole quantity, 8.500 inches flange diameter, bolted bonnet attachment method, manual valve operation method, outside screw-yoke bonnet type

Product Characteristics

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

Flange Diameter: 8.500 inches
Bonnet Type: outside screw-yoke
Bonnet Attachment Method: bolted
Bolt Hole Quantity: 8
Valve Operation Method: manual
Connection Type: flange, round w/holes
Features Provided: bonnet packing
Valve Size: 3.500 inches
Maximum Operating Pressure And Media For Which Designed: 300.0 pounds per square inch steam
Stem Type: nonrising
Maximum Operating Temp And Media For Which Designed: 450.0 fahrenheit steam
Face To Face Distance: 8.500 inches
Flange Face Design: plain
Inlet Relationship With Outlet: identical
Pressure Class: 150.0 pounds
Material: copper alloy 922 or copper alloy 836 body
Material: copper alloy 922 or copper alloy 836 disk
Material: copper alloy 922 or copper alloy 836 seat
Material: copper alloy stem
Material Document And Classification: astm b61 assn std 1st material response or astm b61 assn std 2nd material response seat
Material Document And Classification: astm b61 assn std 1st material response or astm b62 assn std 2nd material response body
Material Document And Classification: astm b61 assn std 1st material response or astm b62 assn std 2nd material response disk
Material Document And Classification: astm b147,alloy 8a assn std single material response stem

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
ASIB102A1-3.5IN	Gate Valve
FIG NO B-102-A SIZE 3 1/2 IN	Gate Valve

FAQs

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

What is the FSCG of the NSN 4820-01-249-3641?

The FSCG of the NSN 4820-01-249-3641 is 4820

Does NSN 4820-01-249-3641 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 4820-01-249-3641 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-249-3641 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 4820-01-249-3641 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Wed, Feb 11, 1987