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National Stock Number:
5365-01-127-3531
Federal Supply Class:
5365
National Item Identification Number:
011273531
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:
| 4687550-0028 | 96169 | ELECTRIC BOAT CORPORATION | | 845-4687550 ITEM 28 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
| BODY INSIDE DIAMETER | 3.500 INCHES MAXIMUM | | BODY OUTSIDE DIAMETER | 11.500 INCHES MAXIMUM | | FIRST RIGHT COUNTERBORE DEPTH | 0.750 INCHES NOMINAL | | FIRST RIGHT COUNTERBORE INSIDE DIAMETER | 4.250 INCHES MAXIMUM | | FIRST RIGHT STEP OUTSIDE DIAMETER | 8.000 INCHES MAXIMUM | | FIRST RIGHT STEP WIDTH | 0.060 INCHES NOMINAL | | OVERALL LENGTH | 5.620 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281,ALLOY 400,CLASS A FED SPEC 1ST MATERIAL RESPONSE OR QQ-N-281,ALLOY R-405,CLASS B FED SPEC 2ND MATERIAL RESPONSE | | MATERIAL | NICKEL ALLOY 400 OR NICKEL ALLOY R-405 | | SECOND LEFT STEP OUTSIDE DIAMETER | 7.000 INCHES MAXIMUM | | SECOND LEFT STEP WIDTH | 4.870 INCHES NOMINAL | | SPECIAL FEATURES | THREE 0.781 IN. DIA BOLT HOLES ON BODY EQUALLY SPACED ON 10.000 IN. DIA BOLT CIRCLE; TWO 0.630 IN. DIA HOLES ON SECOND LEFT STEP SPACED 180 DEG APART | | STYLE DESIGNATOR | STEPPED SPACER |
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