5310-01-042-2804
Lock Washer
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Official Item Classification
- Name
- Lock Washer
- (NSN) National Stock Number
- 5310-01-042-2804
- (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
- 06/08/1977 (49 years ago)
82.5 rockwell superficial 15-n minimum and 84.5 rockwell superficial 15-n maximum hardness rating, test and zzzy criticality code justification, 0.506 inches minimum and 0.533 inches maximum outside diameter, 0.125 inches nominal material thickness, 0.188 inches nominal hole diameter
Specs & Compatibility
0.188 inches nominal
0.506 inches minimum and 0.533 inches maximum
0.125 inches nominal
82.5 rockwell superficial 15-n minimum and 84.5 rockwell superficial 15-n maximum
test and zzzy
steel comp 1060 or steel comp 1070 or steel comp 1078 or steel comp 1080 overall
66 fed std all material responses overall
nickel and chromium overall
special quality control testing
split helical-right hand
"81349-mil-p-23199 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.)."
as differentiated by material which must conform to ships parts control center special quality control provisions
Regulatory Compliance
Precious metal content is unknown
The item does not have a nuclear hardened feature but does have other critical feature(s) such as tolerance, fit restrictions 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