4820-00-979-6366
Valve Seat
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Official Item Classification
- Name
- Valve Seat
- (NSN) National Stock Number
- 4820-00-979-6366
- (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
- 01/01/1963 (63 years ago)
0.855 inches minimum and 0.865 inches maximum flange diameter, 0.398 inches minimum and 0.402 inches maximum body inside diameter, 0.310 inches minimum and 0.320 inches maximum under flange height, 0.040 inches minimum and 0.050 inches maximum flange seat to disk end height, 0.621 inches minimum and 0.623 inches maximum body outside diameter
Specs & Compatibility
0.855 inches minimum and 0.865 inches maximum
0.621 inches minimum and 0.623 inches maximum
0.398 inches minimum and 0.402 inches maximum
0.040 inches minimum and 0.050 inches maximum
0.310 inches minimum and 0.320 inches maximum
grooved
75.0 rockwell r minimum and 15.0 rockwell superficial 15-n maximum overall
flat
steel corrosion resisting overall
passivate overall
plain flanged
Regulatory Compliance
Item does not contain precious metal.
The item is an aviation critical safety item/flight safety critical aircraft part (acsi/fscap).
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
SMS
0022113
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