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NSN: 5310-00-001-4709
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Part Numbers

Item Number Item Description
853-5 Washer, Lock
853-0005 Washer, Lock

Master Requirement Codes

Code Translation
AAUB The length of a straight line which passes through the center of a hole, and terminates at the circumference.
ABPX A measurement of the smallest dimension of the material, in distinction from length or width.
MATT The chemical compound or mechanical mixture properties of which the item is fabricated.
ABKV The length of a straight line which passes through the center of a circular figure or body, and terminates at the outside circumference.
STYL The style designation indicating the configuration that most nearly corresponds to the appearance of the item.
SFTT 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.

853-0005 Lock Washer

Cage 44940

Technical Definition

Washer, Lock, also referenced with federal logistics item name code 14218 - A washer which is usually round with a centrally located hole. its edges and two bearing surfaces are so designed that applied pressure brings into play the spring tension and/or frictional locking principle which materially resists any tendency toward turning. it may be made of one or two pieces

Technical Characteristics

Hole Diameter (AAUB):
0.172 inches nominal
Material Thickness (ABPX):
0.025 inches nominal
Material (MATT):
Steel overall
Outside Diameter (ABKV):
0.378 inches nominal
Style Designator (STYL):
Flat external teeth
Surface Treatment (SFTT):
Cadmium overall

National Stock Number (NSN)

5310-00-001-4709