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National Stock Number:
5365-00-923-0305
Federal Supply Class:
5365
National Item Identification Number:
009230305
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:
| 369A1301 | 02731 | MCDONNELL DOUGLAS HELICOPTER CO INC | | 369A1301 | 1KVX4 | MD HELICOPTERS INC | | 369A1301 | 81996 | U S ARMY AVIATION AND MISSILE COMMAND | | 369A1301 | 8V613 | THE BOEING COMPANY |
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Techincal Specification:
| INSIDE DIAMETER | 0.7510 INCHES MINIMUM AND | | 0.7518 INCHES MAXIMUM | | OUTSIDE DIAMETER | 1.4989 INCHES MINIMUM AND | | 1.4994 INCHES MAXIMUM | | MATERIAL | STEEL COMP 630 | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5643,COND A ASSN STD SINGLE MATERIAL RESPONSE | | HARDNESS RATING | 38.0 ROCKWELL C MINIMUM AND | | 45.0 ROCKWELL C MAXIMUM | | SURFACE FINISH | 125.0 MICROINCHES OVERALL | | TEST DATA DOCUMENT | 81349-MIL-I-6868 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). | | SPECIAL FEATURES | LEFT SIDE COUNTERBORED 1.320 IN. DIA BY 0.180 IN. DEEP,RIGHT SIDE ID CHAMFERED 0.050 IN. LG BY 45 DEG |
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