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National Stock Number:
5365-01-287-7574
Federal Supply Class:
5365
National Item Identification Number:
012877574
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:
| 70750-22124-147 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| APERTURE DIAMETER | 5.230 INCHES NOMINAL | | CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH | 4.426 INCHES NOMINAL | | CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH | 4.426 INCHES NOMINAL | | LARGEST BOLT HOLE DIAMETER | 0.219 INCHES MINIMUM AND 0.229 INCHES MAXIMUM | | LARGEST BOLT HOLE QUANTITY | 4 | | MATERIAL | ALUMINUM | | SMALLEST BOLT HOLE DIAMETER | 0.130 INCHES MINIMUM AND 0.135 INCHES MAXIMUM | | SMALLEST BOLT HOLE QUANTITY | 1 | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 TY 1 MIL SPEC SINGLE TREATMENT RESPONSE | | SURFACE TREATMENT | ANODIZE |
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