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NSN: 5310-00-001-4648
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Part Numbers

Item Number Item Description
A51P60723-15 Washer, Flat

Master Requirement Codes

Code Translation
ABMX The style designation indicating the configuration that most nearly corresponds to the shape of the center hole.
AAGR The style designation indicating the configuration that most nearly corresponds to the cross-sectional shape of the item.
AAUB The length of a straight line which passes through the center of a hole, and terminates at the circumference.
ADAV A measurement of the longest straight line across a circular cross-sectional plane.
ABMW The style designation indicating the configuration that most nearly corresponds to the peripheral shape of the item.
TEST 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.
ABNM A measurement of the smallest dimension of an item, in distinction from length or width.

A51P60723-15 Flat Washer

Cage 61174

Technical Definition

Washer, Flat, also referenced with federal logistics item name code 13393 - A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. the hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). the thickness cannot exceed 25 percent of the largest outside dimension. when the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. the maximum tolerance is applied to dimensions and used as a determining factor. items with separable lamination use shim. for items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. excludes disk, valve, graphite impregnated and lubricated items.

Technical Characteristics

Center Hole Shape Style (ABMX):
Round
Cross-sectional Shape Style (AAGR):
Rectangular
Hole Diameter (AAUB):
0.515 inches nominal
Overall Diameter (ADAV):
0.890 inches minimum and 0.915 inches maximum
Peripheral Shape Style (ABMW):
Round
Test Data Document (TEST):
81349-mil-i-6866 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", "nominal", etc.).
Thickness (ABNM):
0.135 inches minimum and 0.140 inches maximum

National Stock Number (NSN)

5310-00-001-4648