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4820-00-008-7992

Valve Seat

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Official Item Classification

Name
Valve Seat
(NSN) National Stock Number
4820-00-008-7992
(FSG) Federal Supply Group
48 Valves
(FSC) Federal Supply Classification
4820 Nonpowered Valves
(INC) Item Name Code
22113
(FIIG) Federal Item Identification Guide
A15500
Date
07/23/1972 (54 years ago)

0.368 inches minimum and 0.396 inches maximum taper length, 2.973 inches minimum and 2.983 inches maximum taper major diameter, 0.462 inches minimum and 0.464 inches maximum overall height, 2.703 inches minimum and 2.713 inches maximum taper minor diameter, 3.089 inches minimum and 3.090 inches maximum body outside diameter

Specs & Compatibility

Overall Height

0.462 inches minimum and 0.464 inches maximum

Taper Length

0.368 inches minimum and 0.396 inches maximum

Taper Minor Diameter

2.703 inches minimum and 2.713 inches maximum

Taper Major Diameter

2.973 inches minimum and 2.983 inches maximum

Body Outside Diameter

3.089 inches minimum and 3.090 inches maximum

Body Inside Diameter

2.490 inches minimum and 2.510 inches maximum

Seat Angle In Deg

45.000 nominal

Seal Accommodation Type

grooved

Hardness Rating

90.0 rockwell b minimum and 105.0 rockwell b maximum body

Seating Surface Shape

angular

Criticality Code Justification

adar

Material

steel body

Material Document And Classification

ams 5700 assn std single material response body

Style Designator

plain

Fsc Application Data

acft eng r2000

Regulatory Compliance

Precious Metals Indicator
U

Precious metal content is unknown

Criticality Code
Y

The item does not have a nuclear hardened feature but does have other critical feature(s) such as tolerance, fit restrictions or application.

Hazardous Metals Indicator
N

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Source of Supply Code

FPZ

Pseudo Item Name Code

0022113

Related Hardware Products

Part Number Description
113651P20 Valve Seat

Frequently Asked Questions

What is the FSCG of the NSN 4820-00-008-7992?
The FSCG of the NSN 4820-00-008-7992 is 4820
Does the NSN 4820-00-008-7992 have a Schedule B code assigned?
Yes, the Schedule B code is 8481909090
Does NSN 4820-00-008-7992 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 4820-00-008-7992 contain precious materials?
Precious metal content is unknown
Does NSN 4820-00-008-7992 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 4820-00-008-7992 was assigned to the Federal Catalog?
It was assigned 54 years ago, on Sun, Jul 23, 1972