NSN 5305-00-273-4977

Part Details | SOCKET HEAD CAP SCREW

5305-00-273-4977 An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.

Alternate Parts: FFS86TYPE1STYLE11, FFS86TYPE1, 43S4368156, 43S4368-156, 166255PC34, 5305-00-273-4977, 00-273-4977, 5305002734977, 002734977

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JAN 01, 196300-273-497716282 ( SCREW, CAP, SOCKET HEAD )
REFERENCE DRAWINGS & PICTURES

CROWNED HEXAGON

HEXAGON

Cross Reference | NSN 5305-00-273-4977
Part Number Cage Code Manufacturer
FFS86TYPE1STYLE1181348FEDERAL SPECIFICATIONSPROMULGATED BY GENERAL SERVICES
FFS86TYPE181348FEDERAL SPECIFICATIONSPROMULGATED BY GENERAL SERVICES
43S4368-15610001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
166255PC3410001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
Technical Data | NSN 5305-00-273-4977
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER0.375 INCHES
THREAD QUANTITY PER INCH16
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH2.125 INCHES MINIMUM
FASTENER LENGTH4.219 INCHES MINIMUM AND 4.281 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH130000 POUNDS PER SQUARE INCH
HEAD STYLE9 CROWNED HEXAGON
HEAD DIAMETER0.550 INCHES MINIMUM AND 0.562 INCHES MAXIMUM
HEAD HEIGHT0.368 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
INTERNAL DRIVE STYLE HEXAGON
WIDTH ACROSS FLATS0.312 INCHES NOMINAL
NONDEFINITIVE SPEC/STD DATA1 TYPE
DEPARTURE FROM CITED DESIGNATORAS MODIFIED BY FASTENER LENGTH