SCREW
P/N NAS1301-6-4
NSN 5305 00 104 9468
MFG NATIONAL AEROSPACE STANDARDS

NEW GOV SURPLUS
SUPPLIER CAGE CODE 03EF7

ITEM NAME: SCREW,ASSEMBLED WAS
DEFINITION: A SCREW, (as modified) to which has been assembled one or more
nonremovable washer(s).

CHARACTERISTIC VALUE
THREAD CLASS 2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.125 INCHES MINIMUM AND 0.157 INCHES MAXIMUM
FASTENER LENGTH 0.218 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
HEAD STYLE PAN
HEAD DIAMETER 0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM
HEAD HEIGHT 0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM
WASHER QUANTITY 2
INTERNAL DRIVE STYLE CROSS RECESS TYPE 1
NOMINAL THREAD DIAMETER 0.138 INCHES
THREAD QUANTITY PER INCH 32
SECONDARY WASHER NOT IDENTICAL
RELATIONSHIP TO PRIMARY
WASHER
SECONDARY WASHER STYLE FLAT
PRIMARY WASHER OUTSIDE 0.250 INCHES MAXIMUM
DIAMETER
SECONDARY WASHER OUTSIDE 0.253 INCHES MINIMUM AND 0.263 INCHES MAXIMUM
DIAMETER
PRIMARY WASHER STYLE SPLIT HELICAL RING
PRIMARY WASHER MATERIAL 0.031 INCHES MINIMUM
THICKNESS
SECONDARY WASHER MATERIAL 0.013 INCHES MINIMUM AND 0.019 INCHES MAXIMUM
THICKNESS
MATERIAL STEEL COMP 1060 OR STEEL COMP 1080 SECONDARY
WASHER STEEL COMP 1020 OR STEEL COMP 1025 PRIMARY
WASHER STEEL COMP 1010 FASTENER
SURFACE TREATMENT CADMIUM AND CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT
AND CLASSIFICATION RESPONSE OVERALL
THREAD SERIES DESIGNATOR UNC