Part Information
Cylindrical contour of tapered end extends 0.487in. From thd side of shoulder

NSN

National Stock Number:

5315-00-404-0605 5315004040605

TXT

Description:

Headless Shoulder Pin

INC

Item Name Code:

16749

MRC:

The style designation indicating the configuration that most nearly corresponds to the appearance of the first end.AAGZ

First End Style:

Chamfered

MRC:

The style designation indicating the configuration that most nearly corresponds to the appearance of the second end.AAHP

Second End Style:

Round

MRC:

A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.AAJD

Thread Class:

3a

MRC:

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.AAJF

Thread Direction:

Right-hand

MRC:

A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.AASA

Thread Length:

0.469 inches

MRC:

A measurement of the longest dimension of the shank,in distinction from width.AATR

Shank Length:

1.160 inches

MRC:

The length of a straight line which passes through the center of a shoulder,and terminates at the circumference.AAVH

Shoulder Diameter:

0.750 inches

MRC:

The length of a straight line which passes through the center of the body of the shank and terminates at the circumference.AAZE

Shank Diameter:

0.312 inches

MRC:

The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.ABHP

Overall Length:

2.297 inches

MRC:

None.AMCS

First End Taper Length:

0.047 inches

MRC:

The number of threads on the item per linear inch measured on a line parallel to the thread axis.CMLP

Thready Qty Per Inch (tpi):

24

MRC:

Indicates whether or not the second end is identical to the first end.CQBB

Second End Relationship With First End:

Not identical

MRC:

A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.CQFM

Hardness Rating:

46.0 rockwell c and 49.0 rockwell c

MRC:

A designation that is used for the purpose of general identification of the thread.CQJX

Thread Size:

0.312 inches

MRC:

None.CQTR

Second Shank Diameter:

Between 0.414 inches and 0.415 inches

MRC:

Indicates the location of the first end.CRDY

First End Location:

Threaded end

MRC:

None.CRMG

First End Taper Angle:

45.0 degrees

MRC:

Designates the specific surface roughness rating,representing the arithmetic average deviation of the surface from the meanline in profile.CSYM

Surface Finish:

125.000 microinches

MRC:

None.CTTF

Second End Outer Radius:

0.135 inches

MRC:

None.CWAS

Second Shank Length:

1.160 inches

MRC:

The chemical compound or mechanical mixture properties of which the item is fabricated.MATT

Material:

Steel

MRC:

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.SFTT

Surface Treatment:

Cadmium

MRC:

The style designation indicating the configuration that most nearly corresponds to the appearance of the item.STYL

Style Designator:

Shoulder

MRC:

The specification,standard,drawing,or similar instrument that specifies environmental and performance requirements or test conditions under which an item is tested and establishes acceptable limits within which the item must conform identified by an alphabetic and/or numeric reference number. includes the commercial and government entity (cage) code of the entity controlling the instrument.TEST

Test Data Document:

81349-mil-i-6868 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).

MRC:

A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.THSD

Thread Series Designator:

Unf

Part Number	RNVC	RNAAC	DAC	CAGE
A51B13543-11	2	KE	1	61174
A51B13543-11	9	KE	1	26512

Code	Definition
FN	Factory New. Parts manufactured by then OEM and includes manufacturer certification.
NE	New. Parts manufactured by the OEM. May include manufacturer certification or company certification.
NS	New Surplus. New material item purchased from excess inventory.
OH	Overhauled. Product has been rebuilt and tested in accordance with the manufacturer's specifications by a repair shop (MRO).
SV	Serviceable product.
AR	As Removed. Product removed from aircraft or platform with no guarentee on the functionality of the part.
RP	Repairable. Product can be repaired by a MRO and be given a FAA 8130 or EASA Form 1 certification.

Part Number A51B13543-11

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