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National Stock Number:
5365-01-222-5252
Federal Supply Class:
5365
National Item Identification Number:
012225252
Description:
SPACER,RING
Detail:
A circular-shaped item designed to maintain predetermined distance between assembled parts and/or for distributing pressure or preventing endwise movement between member parts. It has a solid cross-section and two flat parallel bearing surfaces. The distance between the bearing surfaces perpendicular to the axis of the centrally located hole shall not exceed 25 percent of the outside diameter. The diameter of the centrally located hole must exceed 75 percent of the outside diameter. Excludes laminated items. For items manufactured from impregnated graphite or lubricated nonmetallic materials, excluding felt or plastics, see GASKET. For items manufactured from lubricated plastics, see BEARING, WASHER, THRUST. For items manufactured from lubricated felt, see FELT, MECHANICAL, PREFORMED. Excludes DISK, VALVE; INSULATOR WASHER; and SHIM. See also SPACER, PLATE and SPACER, SLEEVE.
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Manufacturer Information:
| 70351-08063-102 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| HARDNESS RATING | 33.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM | | INSIDE DIAMETER | 2.364 INCHES MINIMUM AND 2.369 INCHES MAXIMUM | | OUTSIDE DIAMETER | 2.650 INCHES NOMINAL | | OVERALL THICKNESS | 0.190 INCHES MINIMUM AND 0.195 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-18729 MIL SPEC ALL MATERIAL RESPONSES OR MIL-S-6758 MIL SPEC ALL MATERIAL RESPONSES OR MIL-S-6736 MIL SPEC ALL MATERIAL RESPONSES OR MIL-S-5000 MIL SPEC ALL MATERIAL RESPONSES OR AMS 6415 ASSN STD ALL MATERIAL RESPONSES OR AMS 6371 ASSN STD ALL MATERIAL RESPONSES | | MATERIAL | STEEL COMP 4130 OR STEEL COMP E4340 |
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