NSN 5305-01-311-6249

Part Details | CLOSE TOLERANCE SCREW

5305-01-311-6249 A SCREW, MACHINE or SCREW, CAP, SOCKET HEAD whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 IN.) (0.025 mm) or less of a specific diameter for items (1.000 IN.) (25 mm) or less in diameter. Items over (1.000 IN.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 IN.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 IN.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the Screw Thread Standards, FED STD H28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

Alternate Parts: VT169677, VT1696-7-7, C953577, C9535-7-7, 12175477, 121754-7-7, AIC953577, AIC9535-7-7, PBF119877, PBF1198-7-7, 5305-01-311-6249, 01-311-6249, 5305013116249, 013116249

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53DEC 01, 198901-311-624929294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

CROWNED HEXAGON

HEXAGON

Cross Reference | NSN 5305-01-311-6249
Part Number Cage Code Manufacturer
VT1696-7-792215ARCONIC GLOBAL FASTENERS & RINGS,INC.
C9535-7-781755LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN AERONAUTICS
121754-7-756878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
AIC9535-7-706725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
PBF1198-7-727624SPS TECHNOLOGIES, LLCDBA PB FASTENERS
Technical Data | NSN 5305-01-311-6249
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.438 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.668 INCHES MINIMUM AND 0.698 INCHES MAXIMUM
FASTENER LENGTH1.121 INCHES NOMINAL
MINIMUM TENSILE STRENGTH220000 POUNDS PER SQUARE INCH
HEAD STYLE6 CROWNED HEXAGON
INTERNAL DRIVE STYLE HEXAGON
GRIP LENGTH0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM
GRIP DIAMETER0.4360 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM