5325-00-255-5588 RING,RETAINING Index 5330-00-255-5591 SEAL

National Stock Number:
3120-00-255-5590

Federal Supply Class:
3120

National Item Identification Number:
002555590

Description:
BEARING,WASHER,THRUST

Detail:
An item of any peripheral shape usually having one flat or spherical surface and a centrally located hole. It is designed for applications involving moving (kinetic) loads. Except for items fabricated from bearing quality synthetic (plastic) or composed of multilayer material, one bearing surface must either have a specific surface finish designation of 32 microinch (0.8 micrometre) or less, arithmetical average (aa) (arithmetic mean deviation) or one of the following conditions: be lapped or ground; have visible or detectable means of lubrication; grooves, indentations; or self-lubrication. The thickness must not exceed 25 percent of the outside diameter of the shortest distance between peripheral flats (when thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance). Excludes straight, tubular (without flange) items having a bearing surface(s) parallel to the axis of the bore only. See also WASHER, FLAT and SPACER, SLEEVE.


Manufacturer Information:
1022549018876U S ARMY AVIATION AND MISSILE COMMAND
3120002555590A00AME.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE
433-1949A486GNIMIKKEISTOKESKUS NCB FINLAND
3120002555590SCY13E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES FORCES ARMEE


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CORNER SHAPESQUARE ALL CORNERS
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
DIAMETER0.5020 INCHES MINIMUM AND 0.5120 INCHES MAXIMUM
OVERALL THICKNESS0.0600 INCHES MINIMUM AND 0.0640 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-L-46010 MIL SPEC SINGLE MATERIAL RESPONSE LUBRICATION
MATERIALLUBRICANT DRY FILM LUBRICATION
MATERIALSTEEL COMP 631 OVERALL
OUTSIDE DIAMETER0.7200 INCHES MINIMUM AND 0.7800 INCHES MAXIMUM
STYLE DESIGNATORROUND
SURFACE FINISH125.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
SURFACE FINISH125.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
SURFACE FINISH16.0 MICROINCHES LEFT SIDE
SURFACE FINISH16.0 MICROINCHES RIGHT SIDE
SURFACE TREATMENTCHROMIUM OVERALL


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