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National Stock Number:
5365-00-621-5447
Federal Supply Class:
5365
National Item Identification Number:
006215447
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:
| 128512E PIECE 4 | 58529 | THE BABCOCK & WILCOX COMPANY DIV B&W SERVICE COMPANY DBA B & W SERVICE CO | | 49066A | 05073 | BABCOCK & WILCOX CO | | 5488EPC49 | 05073 | BABCOCK & WILCOX CO |
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Techincal Specification:
| APERTURE DIAMETER | 2.031 INCHES NOMINAL | | BOLT CIRCLE DIAMETER | 3.000 INCHES NOMINAL | | BOLT HOLE QUANTITY | 3 | | GASKET CENTER TO FLAT DISTANCE | 1.625 INCHES NOMINAL | | HOLE DIAMETER | 0.250 INCHES NOMINAL | | OUTSIDE DIAMETER | 3.500 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A569 ASSN STD SINGLE MATERIAL RESPONSE | | MATERIAL | STEEL COMP 1009 | | SPECIAL FEATURES | BOLT HOLES 0.375 IN. CSK 82 DEGREES |
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