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National Stock Number:
5365-01-027-2640
Federal Supply Class:
5365
National Item Identification Number:
010272640
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:
| 4188133 | 80212 | BAE SYSTEMS LAND & ARMAMENTS L.P. |
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Techincal Specification:
| HARDNESS RATING | 35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM | | INSIDE DIAMETER | 2.753 INCHES MINIMUM AND 2.783 INCHES MAXIMUM | | OUTSIDE DIAMETER | 3.360 INCHES MINIMUM AND 3.390 INCHES MAXIMUM | | OVERALL THICKNESS | 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A513-A519 ASSN STD ALL MATERIAL RESPONSES OR ASTM A322-A331 ASSN STD ALL MATERIAL RESPONSES | | MATERIAL | STEEL COMP 4130 OR STEEL COMP 4135 OR STEEL COMP 4137 OR STEEL COMP 4140 OR STEEL | | SURFACE FINISH | 32.0 MICROINCHES LARGEST OUTSIDE DIAMETER |
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