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National Stock Number:
5365-00-050-5269
Federal Supply Class:
5365
National Item Identification Number:
000505269
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:
| 2584076 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
| FEATURES PROVIDED | CASEHARDENED | | HARDNESS RATING | 58.0 ROCKWELL C MINIMUM AND 63.0 ROCKWELL C MAXIMUM | | INSIDE DIAMETER | 3.497 INCHES MINIMUM AND 3.502 INCHES MAXIMUM | | OUTSIDE DIAMETER | 4.250 INCHES NOMINAL | | OVERALL THICKNESS | 0.177 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-631 FED SPEC 1ST MATERIAL RESPONSE OR QQ-T-830 FED SPEC 2ND MATERIAL RESPONSE OR QQ-T-830 FED SPEC 3RD MATERIAL RESPONSE OR QQ-T-830 FED SPEC 4TH MATERIAL RESPONSE | | MATERIAL | STEEL | | SURFACE FINISH | 125.0 MICROINCHES BORE | | SURFACE FINISH | 63.0 MICROINCHES LEFT SIDE | | SURFACE FINISH | 63.0 MICROINCHES RIGHT SIDE |
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