5310-01-424-3551 WASHER,FLAT Index 5310-01-424-3553 WASHER,FLAT

National Stock Number:
5365-01-424-3552

Federal Supply Class:
5365

National Item Identification Number:
014243552

Description:
SPACER,RING

Detail:
A circular-shaped item designed to maintain predetermined distance between assembled parts and/or for distributing pressure or preventing endwise movement between member parts. It has a solid cross-section and two flat parallel bearing surfaces. The distance between the bearing surfaces perpendicular to the axis of the centrally located hole shall not exceed 25 percent of the outside diameter. The diameter of the centrally located hole must exceed 75 percent of the outside diameter. Excludes laminated items. For items manufactured from impregnated graphite or lubricated nonmetallic materials, excluding felt or plastics, see GASKET. For items manufactured from lubricated plastics, see BEARING, WASHER, THRUST. For items manufactured from lubricated felt, see FELT, MECHANICAL, PREFORMED. Excludes DISK, VALVE; INSULATOR WASHER; and SHIM. See also SPACER, PLATE and SPACER, SLEEVE.


Manufacturer Information:
13D0021-0190F658AMERICAN METALS & MACHINING
13D0021-0191Z537BUENA PARK TOOL & ENGINEERING INC DBA BUENA PARK TOOL
13D0021-01931638WOODRUFF CORPORATION
13D0021-01959563REID PRODUCTS INC.
13D0021-01964106AM MACHINING, INC.
13D0021-01970265ALL POWER MANUFACTURING CO.
13D0021-01986928SEASTROM MANUFACTURING CO INC
13D0021-01988277THE BOEING COMPANY


Techincal Specification:
INSIDE DIAMETER0.766 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE
MATERIALSTEEL COMP 303SE
OUTSIDE DIAMETER0.999 INCHES MINIMUM AND 1.007 INCHES MAXIMUM
OVERALL THICKNESS0.090 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE
SURFACE TREATMENTPASSIVATE


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