Machine Screw

AN505UB4-4

AN505UB4-4
(NSN) National Stock Number
5305-00-004-6503
Federal Supply Classification
5305 Screws
Item Name Code
06657
Schedule B Code
7415338550
Summary

2a thread class, right-hand thread direction, 0.169 inches minimum and 0.200 inches maximum thread length, 0.219 inches minimum and 0.250 inches maximum fastener length, flat countersunk head style, 0.200 inches minimum and 0.225 inches maximum head diameter

DAC HCC DMIL RNCC
4 - - 2
RNVC SADC MSDS RNAAC
2 - - 9Z
Identification

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes:bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.

INC FIIG Concept Condition
06657 A500D0 - 1
Specifications
Thread Class
2a
Details A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
Thread Direction
right-hand
Details The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.
Thread Length
0.169 inches minimum and 0.200 inches maximum
Details A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
Fastener Length
0.219 inches minimum and 0.250 inches maximum
Details The dimension,measured along a line parallel to the longitudinal axis,from the largest bearing surface of the fastener head to the extreme opposite end,or as specifically designated for other type fasteners.
Head Style
flat countersunk
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
Head Diameter
0.200 inches minimum and 0.225 inches maximum
Details The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
Internal Drive Style
slot
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.
Nominal Thread Diameter
0.112 inches
Details The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
Thread Quantity Per Inch
40
Details The number of threads on the item per linear inch measured on a line parallel to the thread axis.
Minimum Tensile Strength
55000 pounds per square inch
Details The maximum rated load in tension applied in a longitudinal direction,per unit of cross-sectional area,that the material can withstand without rupture.
Countersink Angle
80.0 degrees minimum and 82.0 degrees maximum
Details The included angle of the countersink.
Screw Material
copper alloy
Details The chemical compound or mechanical mixture properties of which the screw is fabricated.
Thread Series Designator
unc
Details A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
HMIC PMIC ESD/EMI Criticality
N U - -
Freight
Universal / National Freight and Handling Information
UFC HMC LTL LCL
- - - -
RVC WCC TCC SHC
- - - -

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Manufacturer
AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
CAGE: 88044
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FAQs
Frequently asked questions for NSN 5305-00-004-6503
What is the NIIN of the NSN 5305-00-004-6503?
The National Item Identification Number (NIIN) of the NSN 5305-00-004-6503 is 00-004-6503
When the NSN 5305-00-004-6503 was assigned to the Federal Catalog?
It was assigned 52 years ago, on Wed, Jun 7, 1972
Does the NSN 5305-00-004-6503 contain any precious metals?
Type/content is unknown
Does the NSN 5305-00-004-6503 contain any hazardous material?
No data in HMIRS

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