Externally Relieved Body Screw

70-161811-2

70-161811-2
(NSN) National Stock Number
5305-00-437-4234
Federal Supply Classification
5305 Screws
Item Name Code
01852
Schedule B Code
7318152000
Summary

2a thread class, 0.114 inches minimum and 0.154 inches maximum thread length, 0.430 inches minimum and 0.450 inches maximum fastener length, pan head style, 0.205 inches minimum and 0.219 inches maximum head diameter, 0.058 inches minimum and 0.068 inches maximum head height

DAC HCC DMIL RNCC
1 - - 3
RNVC SADC MSDS RNAAC
2 - - KE
Identification

An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes:undercut for thread relief). It is no. 0 (0.060 in.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below no. 10 (0.190 in.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and 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. See also bolt, externally relieved body and bolt, internal wrenching.

INC FIIG Concept Condition
01852 A003B0 - 1
Specifications
Thread Class
2a
Details A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
Thread Length
0.114 inches minimum and 0.154 inches maximum
Details A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
Fastener Length
0.430 inches minimum and 0.450 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
pan
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
Head Diameter
0.205 inches minimum and 0.219 inches maximum
Details The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
Head Height
0.058 inches minimum and 0.068 inches maximum
Details A measurement from the bottom to the top of the head,in distinction from depth.
First Diameter From Head
0.074 inches minimum and 0.080 inches maximum
Details None.
Distance From Largest Bearing Surface Of Head To End Of First Diameter
0.240 inches minimum and 0.260 inches maximum
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
0.112 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.
Special Features
90 deg cone point
Details Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification on one or more other functions.
Material
steel comp 303 overall
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material Document And Classification
aisi assn std single material response overall
Details The specification, standard, or manufacturer's reference and the classification designation, such as class, condition, temper, and the like, that identifies the material.
Surface Treatment
passivate overall
Details The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.
Surface Treatment Document And Classification
qq-p-35 fed spec single treatment response overall
Details The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.
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
48950 - W U
RVC WCC TCC SHC
- 713 Z 9
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Manufacturer
GENERAL DYNAMICS MISSION SYSTEMS, INC.
CAGE: 04655
DEDHAM , MA , 02026-4534
UNITED STATES
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FAQs
Frequently asked questions for NSN 5305-00-437-4234
What is the NIIN of the NSN 5305-00-437-4234?
The National Item Identification Number (NIIN) of the NSN 5305-00-437-4234 is 00-437-4234
When the NSN 5305-00-437-4234 was assigned to the Federal Catalog?
It was assigned 55 years ago, on Wed, Sep 10, 1969
Does the NSN 5305-00-437-4234 contain any precious metals?
Type/content is unknown
Does the NSN 5305-00-437-4234 contain any hazardous material?
No data in HMIRS

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