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177972 Valve Seat

4820-00-059-4926

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Official Item Classification

Name
Valve Seat
Part Number
177972
(NSN) National Stock Number
4820-00-059-4926
(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
06/15/1967 (59 years ago)

angular seating surface shape, 0.709 inches minimum and 0.719 inches maximum body inside diameter, 79.000 minimum and 81.000 maximum seat angle in deg, 0.083 inches minimum and 0.085 inches maximum overall height, 0.904 inches minimum and 0.905 inches maximum body outside diameter

Specs & Compatibility

Overall Height

0.083 inches minimum and 0.085 inches maximum

Body Outside Diameter

0.904 inches minimum and 0.905 inches maximum

Body Inside Diameter

0.709 inches minimum and 0.719 inches maximum

Seat Angle In Deg

79.000 minimum and 81.000 maximum

Seating Surface Shape

angular

Material

plastic overall

Style Designator

plain

Regulatory Compliance

Precious Metals Indicator
U

Precious metal content is unknown

Criticality Code
X

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction 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.

Pseudo Item Name Code

0022113

Related Hardware Products

Part Number Description
177972 Valve Seat

Frequently Asked Questions

What is the FSCG of the NSN 4820-00-059-4926?
The FSCG of the NSN 4820-00-059-4926 is 4820
Does the NSN 4820-00-059-4926 have a Schedule B code assigned?
Yes, the Schedule B code is 8481909090
Does NSN 4820-00-059-4926 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 4820-00-059-4926 contain precious materials?
Precious metal content is unknown
Does NSN 4820-00-059-4926 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 4820-00-059-4926 was assigned to the Federal Catalog?
It was assigned 59 years ago, on Thu, Jun 15, 1967