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National Stock Number:
5365-01-257-3674
Federal Supply Class:
5365
National Item Identification Number:
012573674
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:
| 52C8264-1 | 21439 | CURTISS-WRIGHT FLOW CONTROL SERVICE, LLC | | 5365PL0790421 | 9009H | INSPEKTORAT WSPARCIA SIL ZBROJNYCH |
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Techincal Specification:
| APERTURE DIAMETER | 4.000 INCHES MINIMUM AND 4.005 INCHES MAXIMUM | | BOLT HOLE QUANTITY | 6 | | CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH | 9.990 INCHES MINIMUM AND 10.010 INCHES MAXIMUM | | CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH | 9.990 INCHES MINIMUM AND 10.010 INCHES MAXIMUM | | HOLE DIAMETER | 1.312 INCHES MINIMUM AND 1.313 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTMB 209,T651 ASSN STD SINGLE MATERIAL RESPONSE | | MATERIAL | ALUMINUM ALLOY 6061 | | OUTSIDE CORNER RADIUS | 1.690 INCHES MINIMUM AND 1.810 INCHES MAXIMUM | | OVERALL LENGTH | 23.440 INCHES MINIMUM AND 23.560 INCHES MAXIMUM | | OVERALL WIDTH | 13.440 INCHES MINIMUM AND 13.560 INCHES MAXIMUM | | SPECIAL FEATURES | COUNTERBORED HOLE 0.500 IN. MIN,0.502 IN. MAX |
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