Attachment 154 Amend4_DLA_OPS_PH II_Spec_08 41 13 page8.pdf
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- Solicitation number
- W91235620R2005
About this file
This document outlines specifications for an entrance system for the Defense Logistics Agency Aviation Operations Center, Phase II project. The system is to be fabricated from aluminum with hairline joints and welds concealed according to AWS recommendations. Components are to be cleaned and given a medium bronze anodized finish to AA-M10-C22-A32 standards. Fabrication tolerances require rigidly securing units with hairline joints and sealing per manufacturer recommendations. The related federal contract opportunity is solicitation number W91235620R2005 for the DLA Aviation Operations Center, Phase II project to be conducted by the Department of the Army Corps of Engineers Norfolk District. Amendments 1, 2, 3, 5, 6 and 7 have been issued for this solicitation.
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Text version
DLA OPS CENTER PHASE 2 W91236-17-D-002
DEFENSE SUPPLY CENTER RICHMOND (DSCR), RICHMOND, VA
d. Clearly indicate locations of exposed fasteners and joints.
e. Clearly show where and how the manufacturer's system deviates from Contract drawings and these specifications.
2.2.1 Entrance System Fabrication
Provide door corner construction consisting of mechanical clip fastening, SIGMA deep penetration plug welds and 1 1/8 inch long fillet welds inside and outside all four corners. Provide a hook-in type exterior glazing stop with EPDM glazing gaskets reinforced with non-stretchable cord.
Provide an interior glazing stop that is mechanically fastened to the door member and that incorporates a silicone-compatible spacer used with silicone sealant.
Accurately fit and secure joints and corners. Make joints hairline in appearance. Remove burrs and smooth edges. Prepare components with internal reinforcement for door hardware. Arrange fasteners and attachments so that they are concealed from view.
Separate dissimilar metals with protective coating or pre-formed separators to prevent contact and corrosion.
2.2.2 Shop Assembly
Fabricate and assemble units with joints only at the intersection of aluminum members with hairline joints; rigidly secure these units, and seal them in accordance with the manufacturer's recommendations.
2.2.2.1 Welding
Conceal welds on aluminum members in accordance with AWS recommendations or methods recommended by the manufacturer. Members showing welding bloom or discoloration on finish or material distortion will be rejected by the Contacting Officer.
2.2.3 Finish
Before fabrication, clean the units and give them a AA-M-10-C22-A32 medium bronze (color) anodized finish in accordance with the requirements of the
AA DAF45.
c. Color Anodized: Conforming to AA-M12C22A 32 and AAMA 611
Select and edit the following items for appropriate finish; delete types that do not apply.
(1) Architectural Class II
(2) Etched, medium matte
(3) Medium bronze anodic coating, 0.4 mil minimum thickness
2.2.4 Fabrication Tolerance
Fabricate and assemble units with joints only at intersection of aluminum members with hairline joints; rigidly secure these units, and seal them in accordance with the manufacturer's recommendations.
SECTION 08 41 13 Page 8
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