Nut -

Detail Characteristic
DRILLED HOLE DIAMETER0.045 INCHES MINIMUM AND 0.050 INCHES MAXIMUM
BEARING SURFACE FINISH125.0 MICROINCHES
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
COUNTERSINK ANGLE110.0 DEGREES NOMINAL BOTH ENDS
HARDNESS RATING34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
HOLE CONFIGURATION STYLECONFIGURATION B
HOLE TYPE AND QUANTITY3 DRILLED
NUT HEIGHT0.188 INCHES NOMINAL
NUT STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6758,COND C4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 4130 OVERALL
NOMINAL THREAD SIZE0.250 INCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL AND CHROMATE OVERALL
THREAD CLASS3B
THREAD DIRECTIONLEFT-HAND
THREAD SERIESUNJF
THREAD QUANTITY PER INCH28
WIDTH ACROSS FLATS0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM

Welcome Back
Winback Offer

Unit of Measure

Inventory

 5

Estimated Ship Date

 Ships in 1 Business Day

Inventory Note

 Need additional stock? Call (877) 920-1876 or email

Weight

 .005 lb

NSN

 5310-00-825-0783

NIIN

 00-825-0783

Part # Unpunctuated

 NAS509L4

Minimum Order Note

 Minimum order is 100. Must order in increments of 1.