3120-01-223-5557, BEARING,WASHER,THRUST

National Stock Number:
3120-01-223-5557

Federal Supply Class:
3120

National Item Identification Number:
012235557

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:

1276-03-221	44114	BAE SYSTEMS LAND & ARMAMENTS L.P.
1276-03-221-99	A0199	FINMECCANICA SPA
5520366	53711	NAVAL SEA SYSTEMS COMMAND
3120PL0815890	9009H	INSPEKTORAT WSPARCIA SIL ZBROJNYCH

Techincal Specification:

MATERIAL DOCUMENT AND CLASSIFICATION	AISI ASSN STD ALL MATERIAL RESPONSES OVERALL
MATERIAL	STEEL COMP 1040 OVERALL OR STEEL COMP 1541 OVERALL OR STEEL COMP 1042 OVERALL OR STEEL COMP 1043 OVERALL OR STEEL COMP 1044 OVERALL OR STEEL COMP 1045 OVERALL
PROPRIETARY CHARACTERISTICS	PACS
OUTSIDE DIAMETER	40.0 MILLIMETERS NOMINAL
OVERALL THICKNESS	4.85 MILLIMETERS MINIMUM AND 5.15 MILLIMETERS MAXIMUM
SPECIAL FEATURES	ALTERNATE PLATING ALUMINUM AND CHROMATE PER MIL-C-83488 TYPE 2,CASS 2 OVERALL
SHANK OUTSIDE DIAMETER	29.979 MILLIMETERS MINIMUM AND 30.000 MILLIMETERS MAXIMUM
STYLE DESIGNATOR	ROUND
SURFACE FINISH	3.0 MICROINCHES OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TYPE 2,CLASS 2 FED SPEC 1ST TREATMENT RESPONSE OVERALL OR MIL-C-87115 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OVERALL AND CHROMATE OVERALL OR ZINC OVERALL AND CHROMATE OVERALL
DIAMETER	10.450 MILLIMETERS MINIMUM AND 10.703 MILLIMETERS MAXIMUM
CENTER HOLE SHAPE STYLE	ROUND
CORNER SHAPE	SQUARE ALL CORNERS
CROSS-SECTIONAL SHAPE STYLE	SHOULDERED
FLANGE THICKNESS	3.0 MILLIMETERS NOMINAL
HARDNESS RATING	20.0 ROCKWELL C MINIMUM OVERALL AND 25.0 ROCKWELL C MAXIMUM OVERALL

Click here to Register for Free 30-day Trial