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NSN: 3040-00-001-4457
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Part Numbers

Item Number Item Description
A51C34050-9 Connecting Link, Rigid
18A787-3 Connecting Link, Rigid
18A787 Connecting Link, Rigid

Master Requirement Codes

Code Translation
AJUD The style designation indicating the configuration that most nearly corresponds to the appearance of the end attachment.
AZHL The structural characteristic of the body.
ABPM The length of a straight line which passes through the center of the body, and terminates at the circumference.
CRTL The master requirement codes of those requirements which are technically critical by reason of tolerance, fit, performance, or other characteristics which affect identification of the item.
MATT The chemical compound or mechanical mixture properties of which the item is fabricated.
AJXT The style designation indicating the configuration that most nearly corresponds to the appearance of the link.
MDCL The specification, standard, or manufacturers reference, and the classification designation, such as class, condition, temper, and the like, that identifies the material.
ABHP The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.
FEAT 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.

A51C34050-9 Rigid Connecting Link

Cage 97057

Technical Definition

Connecting Link, Rigid, also referenced with federal logistics item name code 21988 - An item of various cross-sectional shapes which may be of solid or hollow construction. it is specifically designed for attachment to a lever(s) and/or control(s) to actuate various remote mechanisms. it is one of the following: (1) a one-piece item with or without eyes and/or holes in each end which may have bushings or bearings pressed in the eyes; (2) a one-piece item with both ends processed for terminations, excluding threaded end(s); (3) a two-piece construction type item consisting of a body with both ends processed for terminations and a single end attachment; or (4) a three-piece construction type item consisting of a body and two end attachments. excludes internal combustion engine type piston connecting rods; drag link, steering; link, anchor, brake shoe; tie rod, steering; and turnbuckle. for cylindrical shaped externally threaded items without end attachments, see rod, threaded end and stud (as modified).

Technical Characteristics

End Attachment Hole Diameter (BFLD):
0.2497 inches minimum both ends and 0.2500 inches maximum both ends
End Attachment Length (BFNL):
2.093 inches nominal first end
End Attachment Length (BFNL):
2.344 inches nominal second end
End Attachment Style (AJUD):
Eye both ends
End Attachment Width (BFNQ):
0.438 inches nominal both ends
Body Construction (AZHL):
Tubular
Body Diameter (ABPM):
0.750 inches nominal
Criticality Code Justification (CRTL):
Bfld
Material (MATT):
Steel corrosion resisting
Link Style (AJXT):
Solid shank
Material Document And Classification (MDCL):
Mil-t-6845, 1/8 hard condition mil spec single material response
Overall Length (ABHP):
28.813 inches minimum and 28.844 inches maximum
Special Features (FEAT):
Connector link info: effective length 27.875 to 27.907 inches, thread demensions: right hand, length 1.125, size 3/8-24 nf; end attachment info: diameter 0.938 inch both ends, material steel both ends, surface treatment cadmium qq-p-416 type 1 class 2, connecting hole bearing location both ends, locknut included

National Stock Number (NSN)

3040-00-001-4457