A-A-2687A
2.2 Orbital motion. The sander shall approximately subscribe an orbit with a minimum diameter of 5/32 inch
2.3 Back-up pad: Each sander shall contain a rectangular shaped pad made of neoprene rubber at lease 1/4 inch thick.
2.4 Materials: The materials used in the construction of all components shall be capable of completing the examination and tests required herein. All components shall be new and unused. Repaired or reconditioned components shall not be acceptable. Cadmium is not an acceptable plating.
2.5 Motor: The sander shall be equipped with a rotary vane-type pneumatic motor.
2.6 Throttle: The sander shall fit conveniently into the palm of a hand and be equipped with a palm-driven lever type throttle that shall automatically close the air inlet when hand pressure is removed.
2.7 Lubrication: Parts requiring lubrication shall be protected from the entrance of foreign matter and loss of lubricant. The sander shall provide for the delivery of lubricant in a manner that will assure proper operation.
2.8 Air inlet connection: The sander shall have a female, 1/4 inch size, NPT or NPTF, air inlet connection. The inlet shall be fitted with an air strainer or screen (20 mesh or finer) which shall prevent solid particles in the air supply from entering the tool. The filter shall be easy to remove, clean, and replace.
2.9 Bearings: The rotor shaft shall be provided with ball bearings. Needle and roller bearings, which are primarily designed for radial loads, shall not be used in a thrust position. If open type bearings are used, they shall be suitably housed and adequately sealed to prevent leakage of lubricant and entrance of dirt and dust. Sleeve bearings are not acceptable.
2.10 Manual: One copy of a technical manual consisting of the manufacturer’s standards commercial instruction and parts list shall be furnished with each tool.
2.11 Workmanship: Details of workmanship shall be in accordance with the best commercial standards and practices. Paints, coatings, platings, and finishes shall be smooth, dry, adherent, continuous, and not stained or discolored. Fasteners shall be firmly secured and show no evidence of deformation, cross threading, or hazardous burrs. Adhesives and lubricants adequate for their intended purpose shall be properly and neatly applied. Adhesives shall be adequately cured. There shall be no interference, binding, or galling of parts. External and bearing surfaces shall be free of tool and gouge marks, nicks, or other surface imperfections. The item shall be clean and free of corrosion and debris (e.g., chips, shavings, slivers) or other foreign material. The item shall be free from manufacturing workmanship defects (e.g., loose, missing, binding or misaligned parts, sharp or rough external edges, corners or surfaces) and material workamanship defects (e.g., pits, rips, fins, burrs, tears, nodules, cracks, blisters) which may adversely impact the item’s serviceability, durability, safety, or appearance.
3. Regulatory Requirements: In accordance with section 23.403 of the Federal Acquisition Regulations, the Government’s policy is to acquire items composed of the highest percentage of recovered materials practicable, consistent with maintaining a satisfactory level of competition without adversely affecting performance requirements or exposing supplier’s employees to undue hazards from the recovered materials.
3.1 Metric products: Products manufactured in metric dimensions will be considered on an equal basis with those manufactured using inch-pound units, provided they fall within the tolerances specified and all other requirements of this document are met. If a product is manufactured in metric dimensions and those dimensions exceed the tolerances specified in the inch-pound units, a request should be made to the specification preparing activity for change to this document.
4. Quality assurance provisions.
4.1 Responsibility for inspection: Unless otherwise specified in the contract, the contractor is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified in the contract, the contractor may use his own or other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform inspection set forth in this specification where such inspections are deemed necessary to ensure supplies and services adhere to prescribed requirements.
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