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National Stock Number:
5365-00-798-1357
Federal Supply Class:
5365
National Item Identification Number:
007981357
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:
| 7339251 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| INSIDE DIAMETER | 7.625 INCHES MINIMUM AND 7.627 INCHES MAXIMUM | | OUTSIDE DIAMETER | 8.485 INCHES MINIMUM AND 8.490 INCHES MAXIMUM | | OVERALL THICKNESS | 1.875 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-750,COMP A FED SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | COPPER ALLOY 510 | | SPECIAL FEATURES | 3 THREADED HOLE 1/4 IN.-20 UNC-28,5/16 IN. DEEP,120 DEG APART,8.062 IN. HOLE CIRCLE DIA | | SURFACE FINISH | 125.0 MICROINCHES LEFT SIDE | | SURFACE FINISH | 125.0 MICROINCHES RIGHT SIDE |
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