National Item Identification Number
01-300-3311
013003311
5306-01-300-3311
5306013003311
National Stock Number
Item Name
BOLT,CLOSE TOLERANCE
Federal Supply Class
5306
Description
An externally threaded fastener whose unthreaded portion is of a specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (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 not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see BOLT, SHEAR. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see BOLT, MACHINE.
Commercial and Government Entity Code (Supplier Data)
2K255
CONAIR AVIATION ASSOCIATES
138 E RIO GRANDE AVE
WILDWOOD
NJ
08260
609-729-2624
3P226
FISHER-FAIRCHILD CORPORATION
52 CORNICHE DRIVE E
DANA POINT
CA
92629
949-276-4783
4A766
AERO HARDWARE & PARTS CO INC
130 BUSINESS PARK DR
ARMONK
NY
10504
914-273-8550
60996
AERO FASTENER CO INC
DBA AERO FASTERNER CO INC
300 UNION ST
WESTFIELD
MA
01085
413-562-5851
81755
Reference Numbers (Part Numbers)
NAS6305L6
NAS6305L6
NAS6305L6
NAS6305L6
NAS6305L6
NAS6305L6
Required Categories
THREAD SERIES DESIGNATOR
NOMINAL THREAD DIAMETER
THREAD QUANTITY PER INCH
THR
Required Description
UNJF
0.312 INCHES
24
3A
RIGHT-HAND
0.438 INCHES NOMINAL
1.251 INCHES NOMIN