5310-01-304-7971 NUT,SELF-LOCKING,EXTENDED WASHER Index 5310-01-304-7973 WASHER,FLAT

National Stock Number:
5310-01-304-7972

Federal Supply Class:
5310

National Item Identification Number:
013047972

Description:
NUT,SELF-LOCKING,EXTENDED WASHER

Detail:
A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery. An integral feature is incorporated for locking on the threads of a mating member.


Manufacturer Information:
14222-480205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
BACN10YR4CM81205THE BOEING COMPANY
BH14222-427238BRISTOL INDUSTRIES, LLC
RH30C4D52828REPUBLIC FASTENER MFG. CORP.
MS14222-480205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
MS14222-496906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
THREAD SERIESUNJF
NOMINAL THREAD SIZE0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
MATERIALIRON ALLOY 660 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR
AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND
CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NUT STYLEHEXAGON
WASHER OUTSIDE DIAMETER0.420 INCHES MAXIMUM
OVERALL HEIGHT0.204 INCHES MINIMUM AND
0.219 INCHES MAXIMUM
WASHER THICKNESS0.019 INCHES MINIMUM
WIDTH ACROSS FLATS0.304 INCHES MINIMUM AND
0.316 INCHES MAXIMUM
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
NUT COUNTERBORE DEPTH0.007 INCHES MINIMUM AND
0.036 INCHES MAXIMUM WASHER
COUNTERBORE DIAMETER0.250 INCHES MINIMUM AND
0.280 INCHES MAXIMUM WASHER
LUBRICATIONDRY FILM LUBRICANT
TEMP RATING450.0 DEG FAHRENHEIT MAXIMUM


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