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National Stock Number:
5365-99-788-1017
Federal Supply Class:
5365
National Item Identification Number:
997881017
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:
| 100355-3000-023 | K1020 | MBDA UK LTD | | 100355-3000-023 | K1806 | MINISTRY OF DEFENCE, DE&S UNDERWATER AND ELECTRONIC WARFARE PT (UEW IPT) |
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Techincal Specification:
| BODY INSIDE DIAMETER | 12.00 MILLIMETERS MINIMUM AND 12.27 MILLIMETERS MAXIMUM | | BODY OUTSIDE DIAMETER | 39.50 MILLIMETERS MINIMUM AND 40.50 MILLIMETERS MAXIMUM | | FIRST LEFT COUNTERBORE DEPTH | 25.0 MILLIMETERS NOMINAL | | FIRST LEFT COUNTERBORE INSIDE DIAMETER | 25.00 MILLIMETERS MINIMUM AND 25.10 MILLIMETERS MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | BS 970 PART 4 GRADE 316S16 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | STEEL | | OVERALL LENGTH | 49.5 MILLIMETERS MINIMUM AND 50.5 MILLIMETERS MAXIMUM | | STYLE DESIGNATOR | STEPPED SPACER |
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