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National Stock Number:
5365-01-132-6824
Federal Supply Class:
5365
National Item Identification Number:
011326824
Description:
SPACER,STEPPED
Detail:
A TUBULAR SHAPED ITEM WITH A ROUND OR HEXAGON PERIPHERAL SHAPE HAVING TWO FLAT BEARING SURFACES PERPENDICULAR TO THE AXIS OF THE CENTRALLY LOCATED HOLE. IT IS DESIGNED TO MAINTAIN A PREDETERMINED DISTANCE BETWEEN ASSEMBLED PARTS. THE ITEM MAY BE WITH OR WITHOUT FLANGE(S) OF ANY PERIPHERAL SHAPE. THE LENGTH MUST EXCEED 25 PERCENT OF THE OUTSIDE DIAMETER OR DISTANCE ACROSS PERIPHERAL FLATS. (WHEN THE LENGTH, OUTSIDE DIAMETER, AND/OR DISTANCE ACROSS PERIPHERAL FLATS ARE DESIGNATED AS A TOLERANCE, THE MAXIMUM DIMENSION WILL BE USED TO DETERMINE COMPLIANCE.) IT MUST HAVE ONE OR MORE INTERNAL STEPS (COUNTERBORES) AND/OR EXTERNAL STEPS ON EITHER OR BOTH BEARING SURFACES. EXCLUDES SPACER, OPTICAL ELEMENT. SEE ALSO WASHER, RECESSED AND WASHER, SHOULDERED AND RECESSED.
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Manufacturer Information:
| MR-128 | 56848 | UNITED STATES DEPARTMENT OF TREASURY MINT PROCUREMENT DIV |
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Techincal Specification:
| BODY INSIDE DIAMETER | 1.250 INCHES MAXIMUM | | BODY OUTSIDE DIAMETER | 2.500 INCHES MAXIMUM | | FIRST LEFT COUNTERBORE DEPTH | 1.562 INCHES NOMINAL | | FIRST LEFT COUNTERBORE INSIDE DIAMETER | 1.875 INCHES MAXIMUM | | OVERALL LENGTH | 4.219 INCHES NOMINAL | | MATERIAL | STEEL | | SPECIAL FEATURES | 2 0.438 IN. DIA DRILL HOLES,EQUALLY SPACED,0.500 IN. HOLE CENTER TO LEFT END DISTANCE; 2 0.250 IN. DIA DRILL HOLES,EQUALLY SPACED,0.469 IN. HOLE CENTER TO RIGHT END DISTANCE |
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