LB50-4C Assembled Washer Plain Nut
5310-01-054-2557
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Official Item Classification
- Name
- Assembled Washer Plain Nut
- Part Number
- LB50-4C
- (NSN) National Stock Number
- 5310-01-054-2557
- (FSG) Federal Supply Group
- 53 Hardware and Abrasives
- (FSC) Federal Supply Classification
- 5310 Nuts and Washers
- (INC) Item Name Code
- 21824
- (FIIG) Federal Item Identification Guide
- A021A0
- Date
- 01/17/1978 (48 years ago)
0.230 inches minimum and 0.240 inches maximum nut counterbore diameter, 0.460 inches minimum and 0.490 inches maximum washer outside diameter, 3b thread class, 0.334 inches minimum and 0.374 inches maximum overall height, right-hand thread direction
Specs & Compatibility
3b
right-hand
0.460 inches minimum and 0.490 inches maximum
0.230 inches minimum and 0.240 inches maximum nut
0.334 inches minimum and 0.374 inches maximum
flat with turned back edge
0.141 inches minimum and 0.161 inches maximum nut
0.367 inches minimum and 0.376 inches maximum
450.0 fahrenheit maximum
unjf
32
0.190 inches
iron alloy 660 nut
passivate overall
qq-p-35 fed spec single treatment response overall
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.
0021824
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