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National Stock Number:
5365-01-218-7547
Federal Supply Class:
5365
National Item Identification Number:
012187547
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:
| 3-51970-1 | 81205 | THE BOEING COMPANY |
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Techincal Specification:
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6050 MIL SPEC 2ND MATERIAL RESPONSE | | MATERIAL | STEEL COMP 4130 OR STEEL COMP 8630 | | SPECIAL FEATURES | 1.250 INCHES OUTSIDE DIAMETER X 1.020 INCHES INSIDE DIAMETER X 0.14 INCHES THICK/LONG; B1 CIRCULAR; F21 RECTANGULAR METAL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 1,CLASS 2 FED SPEC 1ST TREATMENT RESPONSE OR ASTM B633, TYPE 2, CLASS FE/ZN13 ASSN STD 2ND TREATMENT RESPONSE | | SURFACE TREATMENT | CADMIUM AND CHROMATE OR ZINC AND CHROMATE |
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