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National Stock Number:
5365-99-720-5246
Federal Supply Class:
5365
National Item Identification Number:
997205246
Description:
SPACER,RING
Detail:
A thin flat metal or plastic item of various peripheral shapes having a solid or laminated cross-section. It is designed to maintain a predetermined distance between two surfaces. For round items without a hole and having a solid rectangular cross-section use DISK, SOLID, PLAIN. Items with either (1) a solid (not laminated) cross-section, or (2) a non-separable laminated cross-section with one hole centrally located, must have a thickness less than 0.006 inch (0.152 mm) for items less than 1/4 inch (6.35 mm) outside diameter or shortest distance across peripheral flats, and less than 0.016 inch (0.406 mm) for items 1/4 inch (6.35 mm) or more outside diameter, or shortest distance across peripheral flats. For items with thickness greater than those indicated above, see SPACER, PLATE; WASHER, FLAT and SPACER, RING. When thickness and/or outside diameter or shortest distance across peripheral flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance. See also SHIM STOCK, LAMINATED; SHIM STOCK ASSORTMENT, GASKET; and BEARING, WASHER, THRUST.
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Manufacturer Information:
| B507339 | K0378 | ROLLS-ROYCE PLC |
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Techincal Specification:
| MATERIAL DOCUMENT AND CLASSIFICATION | MSRR 7181 MFR REF SINGLE MATERIAL RESPONSE | | MATERIAL | NICKEL ALLOY | | OUTSIDE DIAMETER | 13.790 INCHES MINIMUM AND 13.810 INCHES MAXIMUM | | OVERALL THICKNESS | 0.051 INCHES MINIMUM AND 0.053 INCHES MAXIMUM | | SPECIAL FEATURES | 51 HOLES, 51 X 0.2905 ON 13.100 IN. PCD | | SURFACE FINISH | 63.0 MICROINCHES LEFT SIDE | | SURFACE FINISH | 63.0 MICROINCHES RIGHT SIDE | | SURFACE FINISH | 125.0 MICROINCHES BORE | | INSIDE DIAMETER | 12.490 INCHES MINIMUM AND 12.510 INCHES MAXIMUM |
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