5310-00-175-7481 WASHER,FLAT Index 4130-00-175-7485 COOLING COIL,AIR,DUCT TYPE

National Stock Number:
5306-00-175-7483

Federal Supply Class:
5306

National Item Identification Number:
001757483

Description:
BOLT,RIBBED SHOULDER

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. It has a series of longitudinal ribs, splines or serrations on all or a part of the shoulder. The minor diameter of the ribs must be greater than the major diameter of the threads. See also BOLT, RIBBED NECK.


Manufacturer Information:
27-8060W357PDI GROUND SUPPORT SYSTEMS, INC.
6253-10W357PDI GROUND SUPPORT SYSTEMS, INC.


Techincal Specification:
DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS0.750 INCHES NOMINAL
FASTENER LENGTH2.125 INCHES NOMINAL
HEAD DIAMETER1.250 INCHES NOMINAL
HEAD HEIGHT0.312 INCHES NOMINAL
HEAD STYLEFLAT CHAMFER
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER0.750 INCHES
RIB LENGTH0.500 INCHES NOMINAL
RIB MAJOR DIAMETER0.812 INCHES NOMINAL
SHOULDER SHAPEROUND FIRST SHOULDER
SHOULDER LENGTH0.250 INCHES NOMINAL FIRST SHOULDER
THREAD LENGTH1.250 INCHES MINIMUM
THREAD QUANTITY PER INCH16
THREAD SERIES DESIGNATORUNF


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