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National Stock Number:
5365-01-420-5934
Federal Supply Class:
5365
National Item Identification Number:
014205934
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:
| 7503987P1 | 99971 | LOCKHEED MARTIN CORP NAVAL ELECTRONICS & SURVEILLANCE SYSTEMS |
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Techincal Specification:
| OVERALL THICKNESS | 0.0325 INCHES MINIMUM AND | | 0.0375 INCHES MAXIMUM | | INSIDE DIAMETER | 0.453 INCHES MINIMUM AND | | 0.460 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.545 INCHES MINIMUM AND | | 0.555 INCHES MAXIMUM | | MATERIAL | STEEL COMP 303 | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A582, S30300, COND A ASSN STD SINGLE MATERIAL RESPONSE | | SURFACE TREATMENT | PASSIVATE | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-F-14072, E300 MIL SPEC SINGLE TREATMENT RESPONSE | | SURFACE FINISH | 125.0 MICROINCHES OVERALL |
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