3120-99-963-3386, BEARING,WASHER,THRUST

National Stock Number:
3120-99-963-3386

Federal Supply Class:
3120

National Item Identification Number:
999633386

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:

FL17448	U1515	DGS&E TIG IRC
NM34839	K3743	BAE SYSTEMS GLOBAL COMBAT SYSTEMS LIMITED
R0FN11873-35	K3743	BAE SYSTEMS GLOBAL COMBAT SYSTEMS LIMITED
ROFN11873-35	K3743	BAE SYSTEMS GLOBAL COMBAT SYSTEMS LIMITED

Techincal Specification:

DIAMETER	3.010 INCHES MINIMUM AND 3.020 INCHES MAXIMUM
BEARING SURFACE HOLE DIAMETER	0.1250 INCHES NOMINAL
BEARING SURFACE HOLE QUANTITY	3
CENTER HOLE SHAPE STYLE	ROUND
CORNER SHAPE	SQUARE ALL CORNERS
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
LUBRICATION FEATURE	GROOVE LEFT SIDE
LUBRICATION FEATURE	GROOVE RIGHT SIDE
MATERIAL DOCUMENT AND CLASSIFICATION	BS 369 PB102 NATIONAL STD/SPEC 1ST MATERIAL RESPONSE OR BS 1400 PB1-C NATIONAL STD/SPEC 2ND MATERIAL RESPONSE OVERALL
MATERIAL	COPPER ALLOY OR BRONZE OVERALL
OUTSIDE DIAMETER	4.920 INCHES MINIMUM AND 4.950 INCHES MAXIMUM
OVERALL THICKNESS	0.4100 INCHES NOMINAL
SPECIAL FEATURES	3 HOLES 0.125/0.145 IN. MIN/MAX DIA,3.4034 IN. CENTRE TO CENTRE DISTANCE BETWEEN HOLES ALONG BOLT CIRCLE;1 HOLE 0.219/0.224 IN. MIN/MAX DIA HOLE FROM EDGE THROUGH TO CENTRE HOLE
STYLE DESIGNATOR	ROUND
SURFACE FINISH	63.0 MICROINCHES LEFT SIDE
SURFACE FINISH	63.0 MICROINCHES RIGHT SIDE
SURFACE FINISH	125.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
SURFACE FINISH	125.0 MICROINCHES LARGEST OUTSIDE DIAMETER

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