Externally Relieved Body Screw

20794-5

20794-5
(NSN) National Stock Number
5305-00-004-3158
Federal Supply Classification
5305 Screws
Item Name Code
01852
Schedule B Code
7318152000
Summary

2a thread class, right-hand thread direction, 0.141 inches minimum and 0.171 inches maximum thread length, 0.428 inches minimum and 0.448 inches maximum fastener length, pan head style, 0.256 inches minimum and 0.270 inches maximum head diameter

DAC HCC DMIL RNCC
5 - - C
RNVC SADC MSDS RNAAC
1 9X - ZZ
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 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
0.141 inches minimum and 0.171 inches maximum
Details A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
Fastener Length
0.428 inches minimum and 0.448 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
0.256 inches minimum and 0.270 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
0.087 inches minimum and 0.097 inches maximum
Details A measurement from the bottom to the top of the head,in distinction from depth.
First Diameter From Head
0.081 inches minimum and 0.091 inches maximum
Details None.
Distance From Largest Bearing Surface Of Head To End Of First Diameter
0.277 inches minimum and 0.287 inches maximum
Details None.
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
0.138 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.
Externally Relieved Body Diameter Quantity
1
Details The number of externally relieved diameters on the body,adjacent to the head.
Material
steel comp 304l overall or steel comp 316l overall or steel comp 302 overall or steel comp 347 overall or steel comp 321 overall or steel comp 317 overall or steel comp 316 overall or steel comp 310 overall or steel comp 309 overall or steel comp 305 overall or steel comp 304 overall
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Surface Treatment
oxide 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
mil-c-13924 cl 4 mil 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.
Master-Cross Reference List
Part CAGE DAC HCC RNCC RNVC MSDS RNAAC
20794-5 56563 5 - 5 9 - KZ
20794-5 09344 1 - 3 2 - KE
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 -
RVC WCC TCC SHC
- 713 Z 9

Certified Supplier

Order with confidence. We are a valued certified supplier serving customers in the military and aerospace industries.

  • Fast Quote Times
  • Qualified sales team
  • 100% Product Inspections
  • Counterfeit Parts Prevention
Manufacturer
ANIXTER INC. DBA ANIXTER
CAGE: 0EER9
ARLINGTON , TX , 76018-5248
UNITED STATES
View Products
FAQs
Frequently asked questions for NSN 5305-00-004-3158
What is the NIIN of the NSN 5305-00-004-3158?
The National Item Identification Number (NIIN) of the NSN 5305-00-004-3158 is 00-004-3158
When the NSN 5305-00-004-3158 was assigned to the Federal Catalog?
It was assigned 52 years ago, on Wed, Jun 7, 1972
Does the NSN 5305-00-004-3158 contain any precious metals?
Type/content is unknown
Does the NSN 5305-00-004-3158 contain any hazardous material?
No data in HMIRS

Can't Find It

If you didn't find what you need, don't worry, we're here to help! Our team is ready to help you find exactly what you need. Click below to contact us.

Similar Products
Who we are?

We are one of the largest suppliers of National Stock Number (NSN) parts in the world. Here at NSN Equipment, we live on the cutting edge to give you the best service we possibly can.

And that service is why our customers return to us time and time again. Our credibility and our accolades only serve as testament to our industry-leading nature.

Contact
3555 Agricultural Center Dr.
St. Augustine, FL, 32092
United States
© 2024 NSN Equipment, Inc. All rights reserved.
Made in USA