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		                        | National Stock Number:
 5310-01-544-2704
 
 Federal Supply Class:
 5310
 
 National Item Identification Number:
 015442704
 
 Description:
 NUT,SELF-LOCKING,EXTENDED WASHER
 
 Detail:
 A nut having 12 drive points, 24 sides, and an integral washer which extends beyond the points or periphery. An integral feature is incorporated for locking on the threads of a mating member.
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 Manufacturer Information:
 
 | NAS1805-20N | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE | 
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 Techincal Specification:
 
 | THREAD SERIES | UNJF |  | NOMINAL THREAD SIZE | 1.250 INCHES |  | THREAD QUANTITY PER INCH | 12 |  | THREAD CLASS | 3B |  | THREAD DIRECTION | RIGHT-HAND |  | MATERIAL | IRON ALLOY 660 OVERALL |  | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |  | SURFACE TREATMENT | CADMIUM OVERALL |  | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416, TYPE II, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |  | NUT STYLE | DOUBLE HEXAGON |  | WASHER OUTSIDE DIAMETER | 2.019 INCHES MAXIMUM |  | OVERALL HEIGHT | 1.250 INCHES MAXIMUM |  | WASHER THICKNESS | 0.170 INCHES NOMINAL |  | WIDTH ACROSS FLATS | 1.489 INCHES MINIMUM AND |  |  | 1.502 INCHES MAXIMUM |  | LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |  | TEMP RATING | 450.0 DEG FAHRENHEIT NOMINAL |  | SPECIAL FEATURES | EMBRITTLEMENT TEST DOES NOT APPLY, CETYL ALCOHOL (NON-SOLID FILM LUBRICANT) PER MIL-L-87132, TYPE I, GRADE A | 
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