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National Stock Number:
5365-01-250-0787
Federal Supply Class:
5365
National Item Identification Number:
012500787
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:
| 12313346 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | | 12313346 | T0720 | FNSS SAVUNMA SISTEMLERI ANONIM SIRKETI |
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Techincal Specification:
| INSIDE DIAMETER | 0.640 INCHES MINIMUM AND 0.672 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/6 FED SPEC ALL MATERIAL RESPONSES OR QQ-A-250/7 FED SPEC ALL MATERIAL RESPONSES OR QQ-A-596 FED SPEC ALL MATERIAL RESPONSES OR QQ-A-200/4 FED SPEC ALL MATERIAL RESPONSES OR ASTM B618 ASSN STD ALL MATERIAL RESPONSES | | OUTSIDE DIAMETER | 3.750 INCHES NOMINAL | | OVERALL THICKNESS | 1.000 INCHES MINIMUM AND 1.032 INCHES MAXIMUM | | SPECIAL FEATURES | LEFT OUTSIDE CORNER CHAMFERED 0.380 IN. MIN,0.412 IN. MAX DEEP; RIGHT OUTSIDE CORNER CHAMFERED 45 DEGREES BY 0.031 IN. MIN,0.093 IN. MAX | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-5541,CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE | | SURFACE TREATMENT | CHROMATE |
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