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National Stock Number:
5365-01-287-0386
Federal Supply Class:
5365
National Item Identification Number:
012870386
Description:
SPACER,PLATE
Detail:
A flat metal or plastic item of various peripheral shapes having a solid (not laminated) cross-section. It is designed to maintain a predetermined distance between two surfaces. For round items without a hole having a solid rectangular cross-section use DISK, SOLID, PLAIN. For round or hexagonal items with only one hole centrally located and with the length (thickness) exceeding 25 percent of the outside diameter or distance across peripheral flats, see SPACER, SLEEVE. The thickness between the two parallel bearing surfaces must be 0.006 inch, (0.152 mm) or more for items less than 1/4 inch (6.35 mm) across the peripheral diameter, or smallest overall outside dimension, or must be 0.016 inch (0.406 mm) or more for items 1/4 inch (6.35 mm) or greater across the peripheral diameter or smallest overall outside dimension. For items with a thickness less than those indicated above, see SHIM. For items with one hole centrally located conforming to the above dimensional criteria use WASHER, FLAT or SPACER, RING as applicable. When thickness and/or outside diameter or smallest overall outside dimension is designated as a tolerance/dimension the maximum dimension will be used to determine compliance. Excludes GASKET; INSULATOR (as modified) and MOUNTING PAD, ELECTRICAL-ELECTRONIC COMPONENT.
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Manufacturer Information:
| 6288986 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 6289572 FIND 64 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| APERTURE DIAMETER | 0.630 INCHES MINIMUM AND 0.670 INCHES MAXIMUM | | BOLT CIRCLE DIAMETER | 0.938 INCHES NOMINAL | | BOLT HOLE QUANTITY | 4 | | HARDNESS RATING | 40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.168 INCHES MINIMUM AND 0.174 INCHES MAXIMUM | | OUTSIDE DIAMETER | 1.680 INCHES MINIMUM AND 1.720 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OR AMS 6415 ASSN STD SINGLE MATERIAL RESPONSE | | MATERIAL | STEEL COMP 4340 | | SPECIAL FEATURES | HOLES ARE COUNTERBORED TO 0.250 IN. DIA BY 0.060 IN. DEEP | | STYLE DESIGNATOR | CIRCULAR |
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