5310-01-348-8276 WASHER,FLAT Index 5320-01-348-8278 PIN-RIVET

National Stock Number:
5365-01-348-8277

Federal Supply Class:
5365

National Item Identification Number:
013488277

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.


Manufacturer Information:
779957-673030HAMILTON SUNDSTRAND CORPORATION


Techincal Specification:
APERTURE DIAMETER0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH1.000 INCHES NOMINAL
END RADIUS0.420 INCHES NOMINAL
HARDNESS RATING75.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 79.5 ROCKWELL SUPERFICIAL 15-N MAXIMUM
HOLE DIAMETER0.216 INCHES MINIMUM AND 0.222 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5504 ASSN STD SINGLE MATERIAL RESPONSE AND AMS 5612 ASSN STD SINGLE MATERIAL RESPONSE
MATERIALSTEEL COMP 410
PROPRIETARY CHARACTERISTICSPACS
OVERALL LENGTH1.460 INCHES NOMINAL
SIDE RADIUS0.230 INCHES NOMINAL
STYLE DESIGNATORNON-CIRCULAR W/RADIUS


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