5315-00-003-6554 PIN,SHOULDER,HEADLESS Index 3120-00-003-6556 BEARING HALF,SLEEVE

National Stock Number:
5306-00-003-6555

Federal Supply Class:
5306

National Item Identification Number:
000036555

Description:
BOLT,CLOSE TOLERANCE

Detail:
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.


Manufacturer Information:
A51H10634-1126512NORTHROP GRUMMAN SYSTEMS CORPORATION
A51H10634-1161174NORTHROP GRUMMAN SYSTEMS CORPORATION
A51H10634-1179RG9NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER1.750 INCHES NOMINAL FIRST HOLE
EXTENDED WASHER DIAMETER1.040 INCHES MINIMUM AND 1.040 INCHES MINIMUM AND 1.050 INCHES MAXIMUM1.050 INCHES MAXIMUM
EXTENDED WASHER THICKNESS0.140 INCHES MINIMUM AND 0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM0.160 INCHES MAXIMUM
FASTENER LENGTH2.233 INCHES MINIMUM AND 2.233 INCHES MINIMUM AND 2.263 INCHES MAXIMUM2.263 INCHES MAXIMUM
GRIP DIAMETER0.6230 INCHES MINIMUM AND 0.6230 INCHES MINIMUM AND 0.6240 INCHES MAXIMUM0.6240 INCHES MAXIMUM
GRIP LENGTH1.365 INCHES MINIMUM AND 1.385 INCHES MAXIMUM
HEAD HEIGHT0.608 INCHES MINIMUM AND 0.608 INCHES MINIMUM AND 0.628 INCHES MAXIMUM0.628 INCHES MAXIMUM
HEAD STYLEDOUBLE HEXAGON W/HOLEDOUBLE HEXAGON W/HOLE
MATERIAL DOCUMENT AND CLASSIFICATIONNAS621 COMP 6AL-4V ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALTITANIUM ALLOY OVERALL
NOMINAL THREAD DIAMETER0.625 INCHES
SHANK UNTHREADED HOLE DIAMETER0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM FIRST HOLE
WIDTH BETWEEN FLATS0.682 INCHES MINIMUM AND 0.682 INCHES MINIMUM AND 0.691 INCHES MAXIMUM0.691 INCHES MAXIMUM
SURFACE FINISH16.0 MICROINCHES THREADS
SURFACE FINISH16.0 MICROINCHES SIDES OF HEAD
SURFACE FINISH63.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH63.0 MICROINCHES GRIP
THREAD CLASS3A3A
THREAD DIRECTIONRIGHT-HANDRIGHT-HAND
THREAD LENGTH0.848 INCHES MINIMUM AND 0.848 INCHES MINIMUM AND 0.898 INCHES MAXIMUM0.898 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH18


Click here to Register for Free 30-day Trial

© 2026 NSN-Now. All rights reserved.    Privacy Policy  |  Contact Us