Shoulder Screw

A51G20552-11

A51G20552-11
(NSN) National Stock Number
5305-00-006-0512
Federal Supply Classification
5305 Screws
Item Name Code
22846
Schedule B Code
-
Summary

3a thread class, right-hand thread direction, 0.375 inches nominal thread length, 3.031 inches nominal fastener length, round head style, 0.500 inches nominal head diameter

DAC HCC DMIL RNCC
4 - - 5
RNVC SADC MSDS RNAAC
2 - - ZZ
Identification

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in.) (1.5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is designed to be driven with either a wrench or an inserted driver or both in sizes below no. 10 (0.190 in.) (5 mm) nominal diameter. No. 10 (0.190 in.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. A locking feature may be incorporated in the design of the head or threads. For items which are both shouldered and have an externally relieved body, use screw, externally relieved body. For items with a no. 10 (0.190 in.) (5 mm) or larger thread diameter without an inserted driver head, use bolt, shoulder. Excludes:bolt, internal wrenching and screw, cap, socket head.

INC FIIG Concept Condition
22846 A003B0 - 1
Specifications
Thread Class
3a
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
0.375 inches nominal
Details A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
Fastener Length
3.031 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
round
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
Head Diameter
0.500 inches nominal
Details The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
Head Height
0.135 inches nominal
Details A measurement from the bottom to the top of the head,in distinction from depth.
Shoulder Diameter
0.2470 inches minimum and 0.2492 inches maximum first shoulder
Details The length of a straight line which passes through the center of the shoulder and terminates at the circumference.
Shoulder Length
2.437 inches nominal first shoulder
Details The length of the enlarged portion of the shank on the item,in distinction from width or diameter.
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
0.190 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.
Shoulder Shape
round first shoulder
Details The physical configuration of the unthreaded portion of a body adjacent to the head which is larger than the diameter of the shank.
Part Name Assigned By Controlling Agency
navy special project
Details The name assigned to the item by the government agency or commercial organization controlling the design of the item.
Special Features
optcial center hole per gc16a-1 both ends
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.
Surface Treatment
cadmium 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.
Thread Series Designator
unjf
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
A51G20552-11 79RG9 A - 3 2 - ZZ
A51G20552-11 61174 A - 5 9 - ZZ
A51G20552-11 26512 A - 3 9 - ZZ
A51G20552-11 02108 5 - 5 2 - ZZ
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
HMIC PMIC ESD/EMI Criticality
N A A -
Freight
Universal / National Freight and Handling Information
UFC HMC LTL LCL
50600 - Q -
RVC WCC TCC SHC
- 713 Z 9

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Manufacturer
HOWE MACHINE & TOOL CORP. DBA HOWE MACHINE & TOOL CORP
CAGE: 65777
BETHPAGE , NY , 11714-3709
UNITED STATES
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FAQs
Frequently asked questions for NSN 5305-00-006-0512
What is the NIIN of the NSN 5305-00-006-0512?
The National Item Identification Number (NIIN) of the NSN 5305-00-006-0512 is 00-006-0512
When the NSN 5305-00-006-0512 was assigned to the Federal Catalog?
It was assigned 52 years ago, on Wed, Jun 14, 1972
Does the NSN 5305-00-006-0512 contain any precious metals?
Does not contain precious metal
Does the NSN 5305-00-006-0512 contain any hazardous material?
No data in HMIRS
What is the ESD classification of NSN 5305-00-006-0512?
No known electrostatic discharge

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