4E12 Lock Washer
5310-00-010-3326
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Official Item Classification
- Name
- Lock Washer
- Part Number
- 4E12
- (NSN) National Stock Number
- 5310-00-010-3326
- (FSG) Federal Supply Group
- 53 Hardware and Abrasives
- (FSC) Federal Supply Classification
- 5310 Nuts and Washers
- (INC) Item Name Code
- 14218
- (FIIG) Federal Item Identification Guide
- A022B0
- Date
- 01/01/1961 (65 years ago)
0.763 inches minimum and 0.783 inches maximum hole diameter, steel comp 1060 or steel comp 1561 or steel comp 1064 or steel comp 1065 or steel comp 1566 or steel comp 1069 or steel comp 1070 or steel comp 1071 or steel comp 1572 or steel comp 1074 or steel comp 1075 or steel comp 1078 or steel comp 1080 overall material, 0.188 inches minimum and 0.198 inches maximum material thickness, 1.271 inches maximum outside diameter, 45.0 rockwell c minimum and 53.0 rockwell c maximum hardness rating
Specs & Compatibility
0.763 inches minimum and 0.783 inches maximum
1.271 inches maximum
0.188 inches minimum and 0.198 inches maximum
45.0 rockwell c minimum and 53.0 rockwell c maximum
steel comp 1060 or steel comp 1561 or steel comp 1064 or steel comp 1065 or steel comp 1566 or steel comp 1069 or steel comp 1070 or steel comp 1071 or steel comp 1572 or steel comp 1074 or steel comp 1075 or steel comp 1078 or steel comp 1080 overall
split helical-right hand
2 style and a class
Regulatory Compliance
Precious metal content is unknown
The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
0014218
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