4730-00-542-3253 BUSHING,PIPE Index 3895-00-542-3260 KETTLE,HEATING,BITUMEN

National Stock Number:
5365-00-542-3257

Federal Supply Class:
5365

National Item Identification Number:
005423257

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.


Manufacturer Information:
9757-6A0JRC1NORTHROP GRUMMAN TECHNICAL SERVICES, INC.
9757-6A13002GOODRICH CORPORATION
9757-6A6K4C8GOODRICH CORPORATION
9757-6A76823NORTHROP GRUMMAN SYSTEMS CORPORATION
9757-6A79U29NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
INSIDE DIAMETER2.752 INCHES MINIMUM AND 2.754 INCHES MAXIMUM
OUTSIDE DIAMETER3.243 INCHES MINIMUM AND 3.248 INCHES MAXIMUM
OVERALL THICKNESS0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-200/3,T4 FED SPEC SINGLE MATERIAL RESPONSE
MATERIALALUMINUM ALLOY 2024


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