155021B

View detailed technical data, stock status, and sourcing information for: 155021B

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155021B
Federal Supply Group
Valves
Federal Supply Classification
4820 Nonpowered Valves
National Stock Number
4820-00-354-1667
Item Name Code
22113
Assigment Date
01/01/1963 (63 years ago)

1.533 inches minimum and 1.534 inches maximum body outside diameter, 0.135 inches minimum and 0.140 inches maximum flange seat to disk end height, 0.400 inches minimum and 0.410 inches maximum under flange height, 1.680 inches minimum and 1.681 inches maximum flange diameter, 1.370 inches minimum and 1.380 inches maximum body inside diameter

Product Characteristics

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

Flange Diameter
1.680 inches minimum and 1.681 inches maximum
Body Outside Diameter
1.533 inches minimum and 1.534 inches maximum
Body Inside Diameter
1.370 inches minimum and 1.380 inches maximum
Flange Seat To Disk End Height
0.135 inches minimum and 0.140 inches maximum
Under Flange Height
0.400 inches minimum and 0.410 inches maximum
Seat Angle In Deg
45.000 nominal
Seating Surface Shape
angular
Material
cobalt alloy face
Material
steel body
Material Document And Classification
66 aisi/sae 4140 fed std 1st material response body
Style Designator
plain flanged

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
155021A Valve Seat
155021B Valve Seat
156052B Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-00-354-1667?
The FSCG of the NSN 4820-00-354-1667 is 4820
Does the NSN 4820-00-354-1667 have a Schedule B code assigned?
Yes, the Schedule B code is 8481909090
Does NSN 4820-00-354-1667 require demilitarization?
Usml items - mutilation to the point of scrap required worldwide. (note 7).
Does NSN 4820-00-354-1667 contain precious materials?
Precious metal content is unknown
Does NSN 4820-00-354-1667 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 4820-00-354-1667 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

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