5310-00-731-2027 NUT,PLAIN,KNURLED Index 5360-00-731-2029 SPRING,FLAT

National Stock Number:
5305-00-731-2028

Federal Supply Class:
5305

National Item Identification Number:
007312028

Description:
SCREW,EXTERNALLY RELIEVED BODY

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercut for thread relief). It is No. 0 (0.060 IN.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below No. 10 (0.190 IN.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and multiple spline types) but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. See also BOLT, EXTERNALLY RELIEVED BODY and BOLT, INTERNAL WRENCHING.


Manufacturer Information:
1005-731-2028A00AME.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE
1005-731-2028SCY13E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES FORCES ARMEE
366-200-1641A00AME.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE
10074183A486GNIMIKKEISTOKESKUS NCB FINLAND
3662001641B0897FN HERSTAL
201010030T6472SAMSUN YURT SAV.SAN. VE TIC.A.S.
731202819204ARMY, UNITED STATES DEPARTMENT OF THE
731202819205SPRINGFIELD ARMORY
5305PL09540269009HINSPEKTORAT WSPARCIA SIL ZBROJNYCH
5305007312028A00AME.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE
53057312028A00AME.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE
75F6202F5322GIAT INDUSTRIES CENTRE DE TULLE
53057312028SCY13E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES FORCES ARMEE
5305007312028SCY13E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES FORCES ARMEE
A10587U4574FNH UK LTD


Techincal Specification:
COUNTERSINK ANGLE83.0 DEGREES MINIMUM AND 85.0 DEGREES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.340 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FASTENER LENGTH0.500 INCHES NOMINAL
FIRST DIAMETER FROM HEAD0.200 INCHES NOMINAL
HARDNESS RATING47.0 ROCKWELL C NOMINAL OVERALL
HEAD DIAMETER0.455 INCHES NOMINAL
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A576 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A675 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 1035 OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
SURFACE TREATMENTPHOSPHATE OVERALL
THREAD LENGTH0.160 INCHES MINIMUM
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH28


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