8 DEC 82
COMMERCIAL ITEM DESCRIPTION
SPOTLIGHTS, AUTOMOTIVE, ROOF-MOUNTED
The General Services Administration has authorized the use of this Commercial Item Description in preference to MIL-S-4510, Type I, Class A, Size 2.
Scope. This commercial item description covers 12 volt roof-mounted spotlights that use PAR 46 sealed beam lamps. They are used on trucks, utility service vehicles, construction equipment, wreckers/tow trucks and snow plows.
Applicable documents. The following documents are referenced in this commercial item description.
SOCIETY OF AUTOMOTIVE ENGINEERS (SAE)
SAE J575- Tests for Motor Vehicle Lighting Devices and Components.
SAE J591- Spot Lamps.
SAE J760- Dimensional Specifications for General Service Sealed Lighting Units.
(copies of publications may be obtained from the Society of Automotive Engineers, Inc, 400 Commonwealth Drive, Warrendale, Pennsylvania 15096.)
AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)
ASTM B 456- Electrodeposited Coatings of Copper Plus Nickel Plus Chromium and Nickel Plus Chromium.
(Copies of publications may be obtained from the American Society for Testing and Materials, 1916 Race Street, Philadelphia, Pennsylvania 19103.)
Salient characteristics. The spotlight shall be designed to meet SAE J591 and perform under specified tests cited in SAE J575.
1. Components. The spotlight shall consist of lamp housing, support arm and roof sealing gasket, control arm and handle, switch and electric wiring, and PAR 46 sealed beam screw terminal lamp per SAE J760. The lamp housing shall position PAR 46 lamp horizontal centerline 6-1/2 inches above the face of the mounting flange on the support arm. The control handle shall be 6 inches below the surface of the mounting flange on the control arm to provide the movement of the lamp in an azimuth thru an arc of not less than 270 degrees and in elevation from vertical to not less than 35 degrees below horizontal. The switch on or near the control handle and electric wiring shall be capable of meeting load demands of 20 amperes in, a 12 volt circuit.
2. Mounting instructions and hardware. Mounting instructions, including required template, mounting screws or bolts of sufficient length to fasten mounting flange to panel 1/8 inch thick, and self-locking nuts and lock-washers shall be furnished and packed with each light.
3. Finish. All parts shall be copper/nickel/chrome plated per ASTM B456 with a bright finish of service condition 4.
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