NSN 5306-01-129-0578

Part Details | CLOSE TOLERANCE BOLT

5306-01-129-0578 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.

Alternate Parts: VS320746, VS3207-4-6, VS320746, VS3207-4-6, ST3M73146, ST3M731-4-6, SC266346, SC2663-4-6, ST3M73146, ST3M731-4-6, MB25146, MB251-4-6, MB25146, MB251-4-6, 10115796, 80165146, 801651-4-6, ST3M73146, ST3M731-4-6, 11136446, 111364-4-6, 11136446, 111364-4-6, PBF126446, PBF1264-4-6, 5306-01-129-0578, 01-129-0578, 5306011290578, 011290578

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53MAR 31, 198201-129-057827851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON

Cross Reference | NSN 5306-01-129-0578
Part Number Cage Code Manufacturer
VS3207-4-692215ARCONIC GLOBAL FASTENERS & RINGS,INC.
VS3207-4-606950ARCONIC GLOBAL FASTENERS & RINGS,INC.
ST3M731-4-692215ARCONIC GLOBAL FASTENERS & RINGS,INC.
SC2663-4-606950ARCONIC GLOBAL FASTENERS & RINGS,INC.
ST3M731-4-676301BOEING COMPANY, THEDBA BOEING
MB251-4-673197HI-SHEAR CORPORATION
MB251-4-6L4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
10115796A486GNIMIKKEISTOKESKUS NCB FINLAND
801651-4-60PTK6SPS TECHNOLOGIES INC
ST3M731-4-60PTK6SPS TECHNOLOGIES INC
111364-4-6K5673SPS TECHNOLOGIES LTD TJ BROOKSDIVISION
111364-4-680539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
PBF1264-4-627624SPS TECHNOLOGIES, LLCDBA PB FASTENERS
Technical Data | NSN 5306-01-129-0578
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.400 INCHES MINIMUM AND 0.450 INCHES MAXIMUM
FASTENER LENGTH0.785 INCHES MINIMUM AND 0.815 INCHES MAXIMUM
HEAD STYLE HEXAGON
HEAD HEIGHT0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM
GRIP LENGTH0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM
GRIP DIAMETER0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM