Machine Screw

91771A190

91771A190
(NSN) National Stock Number
5305-01-275-6005
Federal Supply Classification
5305 Screws
Item Name Code
06657
Schedule B Code
7318152000
Summary

Right-hand thread direction, 0.288 inches minimum and 0.350 inches maximum thread length, 0.250 inches nominal fastener length, flat countersunk head style, 0.292 inches minimum and 0.332 inches maximum head diameter, cross recess type 1 internal drive style

DAC HCC DMIL RNCC
E - - 3
RNVC SADC MSDS RNAAC
2 - - KZ
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 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
0.288 inches minimum and 0.350 inches maximum
Details A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
Fastener Length
0.250 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
flat countersunk
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
Head Diameter
0.292 inches minimum and 0.332 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
cross recess type 1
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.
Nominal Thread Diameter
0.164 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
32
Details The number of threads on the item per linear inch measured on a line parallel to the thread axis.
Countersink Angle
82.0 degrees nominal
Details The included angle of the countersink.
Screw Material
steel comp 302 or steel comp 302b or steel comp 303 or steel comp 303 plus x or steel comp 303se or steel comp 303cu or steel comp 303ma or steel comp 304 or steel comp 304l
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.
Master-Cross Reference List
Part CAGE DAC HCC RNCC RNVC MSDS RNAAC
41-49272-48 53908 5 - 5 9 - KZ
FPS-29153-1623 53908 5 - 5 9 - KZ
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
HMIC PMIC ESD/EMI Criticality
N A - -
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
MCMASTER-CARR SUPPLY CO
CAGE: 39428
ELMHURST , IL , 60126-2034
UNITED STATES
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FAQs
Frequently asked questions for NSN 5305-01-275-6005
What is the NIIN of the NSN 5305-01-275-6005?
The National Item Identification Number (NIIN) of the NSN 5305-01-275-6005 is 01-275-6005
When the NSN 5305-01-275-6005 was assigned to the Federal Catalog?
It was assigned 36 years ago, on Wed, Mar 23, 1988
Does the NSN 5305-01-275-6005 contain any precious metals?
Does not contain precious metal
Does the NSN 5305-01-275-6005 contain any hazardous material?
No data in HMIRS

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