5305-01-223-4419 SCREW,MACHINE Index 5310-01-223-4421 WASHER,FLAT

National Stock Number:
5310-01-223-4420

Federal Supply Class:
5310

National Item Identification Number:
012234420

Description:
NUT,SELF-LOCKING,PLATE

Detail:
A nut with a flanged base of varied shapes which may be plain or mounted by rivets, bolts, welding or integral prongs. An integral feature is incorporated for locking on the threads of a mating member.


Manufacturer Information:
NAS1473S480205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE


Techincal Specification:
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
THREAD DIRECTIONRIGHT-HAND
NUT STYLEPLATE
MATERIALSTEEL NUT
RUBBER FLUOROSILICONE CLASS FQ SEAL
STEEL SHELL
STEEL WASHER
THREAD SERIESUNJF
NOMINAL THREAD SIZE0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3B
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-25988,TY 2,CL 1 MIL SPEC SINGLE MATERIAL RESPONSE SEAL
SURFACE TREATMENTCADMIUM AND
CHROMATE NUT
CHROMATE SHELL
CADMIUM AND
CHROMATE WASHER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE NUT
QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE SHELL
QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE WASHER
OVERALL HEIGHT0.755 INCHES MAXIMUM
NUT LENGTH1.296 INCHES MAXIMUM
NUT HEIGHT0.372 INCHES MAXIMUM
PLATE THICKNESS0.030 INCHES MAXIMUM
PLATE WIDTH0.668 INCHES MAXIMUM
NUT COUNTERBORE DEPTH0.135 INCHES MINIMUM BASE
COUNTERBORE DIAMETER0.289 INCHES MINIMUM BASE
LUBRICATIONDRY FILM LUBRICANT
NUT MOUNTING PROVISIONSTRAIGHT HOLES
MOUNTING HOLE ARRANGEMENT STYLE2 HOLES
MOUNTING HOLE DIAMETER0.098 INCHES MINIMUM AND
0.103 INCHES MAXIMUM
DISTANCE FROM APERTURE CENTER TO MOUNTING HOLE CENTER0.495 INCHES MINIMUM AND
0.505 INCHES MAXIMUM
CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES ALONG LENGTH0.998 INCHES MINIMUM AND
1.002 INCHES MAXIMUM
TEMP RATING350.0 DEG FAHRENHEIT MAXIMUM
FEATURES PROVIDEDFLOATING NUT
SPECIAL FEATURESSEAL HARDNESS DUROMETER A70.0


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