5310-00-641-9949 WASHER,FLAT Index 5310-00-641-9963 WASHER,FLAT

National Stock Number:
5365-00-641-9951

Federal Supply Class:
5365

National Item Identification Number:
006419951

Description:
SHIM

Detail:
A thin flat metal or plastic item of various peripheral shapes having a solid or laminated cross-section. It is designed to maintain a predetermined distance between two surfaces. For round items without a hole and having a solid rectangular cross-section use DISK, SOLID, PLAIN. Items with either (1) a solid (not laminated) cross-section, or (2) a non-separable laminated cross-section with one hole centrally located, must have a thickness less than 0.006 inch (0.152 mm) for items less than 1/4 inch (6.35 mm) outside diameter or shortest distance across peripheral flats, and less than 0.016 inch (0.406 mm) for items 1/4 inch (6.35 mm) or more outside diameter, or shortest distance across peripheral flats. For items with thickness greater than those indicated above, see SPACER, PLATE; WASHER, FLAT and SPACER, RING. When thickness and/or outside diameter or shortest distance across peripheral flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance. See also SHIM STOCK, LAMINATED; SHIM STOCK ASSORTMENT, GASKET; and BEARING, WASHER, THRUST.


Manufacturer Information:
344886-698897LOCKHEED MARTIN CORP
MILS2249981349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
APERTURE DIAMETER2.370 INCHES NOMINAL
CONSTRUCTIONLAMINATED
FEATURES PROVIDEDSEPARABLE
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 65.0 ROCKWELL C MAXIMUM
LAMINATION QUANTITY31
LAMINATION THICKNESS0.002 INCHES NOMINAL
OUTSIDE DIAMETER2.620 INCHES NOMINAL
MATERIALCOPPER ALLOY
NONDEFINITIVE SPEC/STD DATA1 TYPE
STYLE DESIGNATORCIRCULAR


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