1240-00-025-0252 RETAINER,OPTICAL ELEMENT Index 1240-00-025-0254 HOLDER,OPTICAL ELEMENT

National Stock Number:
5365-00-025-0253

Federal Supply Class:
5365

National Item Identification Number:
000250253

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:
511717PC1110001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER
511717PC1153711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
INSIDE DIAMETER1.187 INCHES NOMINAL
OUTSIDE DIAMETER1.295 INCHES NOMINAL
OVERALL THICKNESS0.025 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-626,COMP 2,TEMPER 1/2 HARD FED SPEC SINGLE MATERIAL RESPONSE
MATERIALCOPPER ALLOY
SURFACE FINISH125.0 MICROINCHES BORE
SURFACE FINISH125.0 MICROINCHES LARGEST OUTSIDE DIAMETER
SURFACE FINISH125.0 MICROINCHES LEFT SIDE
SURFACE FINISH125.0 MICROINCHES RIGHT SIDE


Click here to Register for Free 30-day Trial