Machine Screw

1-4X20X1-1-4

1-4X20X1-1-4
(NSN) National Stock Number
5305-00-801-6741
Federal Supply Classification
5305 Screws
Item Name Code
06657
Schedule B Code
7318152000
Summary

2a thread class, right-hand thread direction, 1.250 inches minimum thread length, 1.250 inches nominal fastener length, hexagon head style, 0.190 inches nominal head height

DAC HCC DMIL RNCC
X - - 3
RNVC SADC MSDS RNAAC
9 - - XX
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
1.250 inches minimum
Details A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
Fastener Length
1.250 inches nominal
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
hexagon
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
Head Height
0.190 inches nominal
Details A measurement from the bottom to the top of the head,in distinction from depth.
Width Between Flats
0.375 inches nominal
Details None.
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
0.250 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
20
Details The number of threads on the item per linear inch measured on a line parallel to the thread axis.
Screw Material
steel
Details The chemical compound or mechanical mixture properties of which the screw is fabricated.
Screw Surface Treatment
cadmium
Details The metallic,nonmetallic,and/or chemical properties with which the screw is plated,dipped and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.
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.
Master-Cross Reference List
Part CAGE DAC HCC RNCC RNVC MSDS RNAAC
400687 12027 4 - 5 9 - 9Z
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
63220 - W -
RVC WCC TCC SHC
- 72E Z 9

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Manufacturer
PROVERBS 31 INVESTMENTS LLC DBA GATEWAY STRATEGIC SOURCING DIV GATEWAY STRATEGIC SOURCING
CAGE: 78945
LAUREL , MD , 20723-1963
UNITED STATES
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FAQs
Frequently asked questions for NSN 5305-00-801-6741
What is the NIIN of the NSN 5305-00-801-6741?
The National Item Identification Number (NIIN) of the NSN 5305-00-801-6741 is 00-801-6741
When the NSN 5305-00-801-6741 was assigned to the Federal Catalog?
It was assigned 62 years ago, on Mon, Jan 1, 1962
Does the NSN 5305-00-801-6741 contain any precious metals?
Type/content is unknown
Does the NSN 5305-00-801-6741 contain any hazardous material?
No data in HMIRS

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