NSN 3120-00-111-7778
Part Details | THRUST WASHER BEARING
3120-00-111-7778 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.
Alternate Parts: RB21813, 3120-00-111-7778, 00-111-7778, 3120001117778, 001117778
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
31 | AUG 30, 1968 | 00-111-7778 | 13211 ( BEARING, WASHER, THRUST ) |
REFERENCE DRAWINGS & PICTURES
RECTANGULAR

ROUND W/KEYWAY

ROUND

Cross Reference | NSN 3120-00-111-7778
Part Number | Cage Code | Manufacturer |
---|---|---|
RB21813 | 51663 | CRANE CO.DBA LEAR ROMEC |
Technical Data | NSN 3120-00-111-7778
Characteristic | Specifications |
---|---|
STYLE DESIGNATOR | ROUND |
OUTSIDE DIAMETER | 1.1250 INCHES NOMINAL |
CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR |
OVERALL THICKNESS | 0.1560 INCHES MINIMUM AND 0.1580 INCHES MAXIMUM |
CENTER HOLE SHAPE STYLE | ROUND W/KEYWAY |
DIAMETER | 0.5630 INCHES MINIMUM AND 0.5640 INCHES MAXIMUM |
CENTER HOLE KEYWAY DEPTH | 0.0690 INCHES MINIMUM AND 0.0720 INCHES MAXIMUM |
CENTER HOLE KEYWAY WIDTH | 0.1270 INCHES MINIMUM AND 0.1290 INCHES MAXIMUM |
CENTER HOLE KEYWAY QUANTITY | 2 |