Contractor_Q A_W56HZV-16-R-L135.pdf

W56HZV-16-R-L135

Mine Roller Brackets Questions & Answers

Q.1 Is a first article test for these units required?

A.1 No, however an inspection report of each bracket verifying conformance with the Technical Data Packages in accordance with the Quality Assurance Provisions is required per CDRL A001.

Q.2 The Proposal Adequacy Checklist is quite precise on some of the blocks and I'm seeking your advice on how particular I need to be. For pricing questions, is it acceptable to provide you with each bracket broken down into three simple categories: MATERIAL, LABOR, PAINT? If I propose each bracket in this manner with a few notes, can that be considered my certified cost/pricing data?

A.2 The proposal adequacy checklist is no longer required. There are no anticipated pricing questions and as such no need for each bracket to be broken down by material, labor or paint. No certified cost/pricing data is anticipated at this time. Additionally, the following clauses are removed from the solicitation per amendment 001: DFARS 252.215-7009 Proposal Adequacy Checklist, FAR 52.215-20 Requirements for Certified Cost or Pricing Data or Information Other Than Certified Cost or Pricing Data, 52.215-21 Requirements for Certified Cost or Pricing Data and Data Other Than Certified Cost or Pricing Data – Modifications.

All offerors shall submit their quote according to the line item structure pricing table at C.1.1 the following: unit price for each CLIN, total price for each CLIN, base year total price, option year 1 total price, and grand total price for all CLINs. per solicitation amendment 001.

Q.3 We are not currently registered with the DDTC for ITAR 122.1.

I see that the registration process takes up to 30-60 days. There is a hefty annual fee and the certification will expire annually and need to be renewed.

I'd like to register at the time of need, in order to assure we can best utilize our annual registration at the start of our job for a full year; both in regards to timing as well as the cost.

I am certainly willing to register if it's required to do so for the bid, however would prefer to wait until an award was decided upon. If we are awarded this job, is it acceptable to begin the work with you knowing that our registration is submitted and pending the DDTC....and then we can send you a copy of the approval when we receive it?

I also would like to know if this should be noted in our proposal?

A.3 Regarding the requirement per ITAR §122.1, that "any person who engages in the United States in the business of either manufacturing or exporting or temporarily importing defense articles or furnishing defense services is required to register with Directorate of Defense Trade Controls (DDTC). Manufacturers who do not engage in exporting must nevertheless register" - this is a very common requirement and should not be a surprise to a company working in the defense industry. This register requirement is via the State department (not the Army).

Reference the following for additional information:

www.ndia.org/Resources/ExportImportComplianceResources Any vendor selected for award must provide proof of registration prior to official receipt of award. You can note the status of your ITAR registration with the proposal.

Q.4 We have reviewed subject solicitation and TDP. We are concerned about the small quantities specified. We are confident that our capabilities will allow us to offer very competitive pricing for the individual parts required. However, a considerable capital outlay will be required for materials and labor to make the fixtures required for assemblies. If this capital outlay could be spread over larger quantities, we could offer more competitive pricing overall.

Can you provide the NSNs for the two (2) items being procured in this solicitation?

Can you provide procurement histories or the government's estimates on these two (2) items?

A.4 Neither of these bracket designs have NSNs assigned. Historical prices will not be provided. The government has built several hundred brackets in the past thru Army Depots and Industry.

Q.5 Can the fabricator Laser cut the holes in the parts or do they need to be machined?

A.5 All brackets need to be fabricated in accordance with the Technical Data Packages (TDP). All dimensions need to be within tolerances specified on each TDP page. If the fabricator can laser cut holes to be within tolerance per each bracket TDP, that’s fine.

Q.6 On drawing DTA188961, is the hardware called out in the views that is not included in the fastener table (Zone B6) required to be MIL Spec hardware (with Certification), or are commercially available grade 8 equivalents acceptable? For example HEX BOLT-B1821BH038C175N in Zone B6 could be equivalent to Fastenal P/N 15110.

http://www.ndia.org/Resources/ExportImportComplianceResources

A.6 Referencing the MaxxPro bracket TDP, specifically drawing DTA188961. The hardware called out in the lower left view (Zone C6) is NOT required for this purchase. However the table of hardware called out in Zone A6 is required and is needed for bracket installation. To further answer the question, if the MIL Spec hardware was required it would need to be in accordance with the TDP (meaning in accordance with B1821BH038C175N). If Fastenal makes a Hex Bolt in accordance with B1821BH038C175N then that would be acceptable.

Q.7 What level of assembly is required- does it need to be fitted together as a single unit with the hardware placed in the holes, or should it be provided as a kit with separate components with the hardware bagged and tagged? It seems to be most practical to not be fully assembled as it will likely need to be then disassembled to be installed onto the vehicle.

A.7 Would like all the nuts, bolts, and washers either bag and tagged or tagged and put in a box. All hardware should be secured inside each crate. For the pins and linchpins would like those fully assembled in the brackets. Any remaining loose pieces will also be secured inside each crate.

Q.8 We need to know if the US Army will approve to use a Pass/Fail gage to inspect all the locations of the holes associated to the MAXXPRO Brackets and HMMWV Roller Brackets? We understand that if permitted, the gage would require US Army approval prior to use. This would eliminate the collection of variable data on these features.

A.8 Per section 2.a.iii. of the Quality Assurance Provisions (Page 3). The contractor may submit to the government an alternative to the dimensional inspection plan described above. One such acceptable method would include utilizing a calibrated fixture or set of fixtures that once attached to the bracket connection points would definitively verify conformance of all dimensions associated with the connection points. Periodic recertification of verification fixture would be required in this instance.

US Army may approve a pass/fail fixture assuming the contractor can prove it would definitively verify conformance of all dimensions associated with the connection points.

Q.9 If awarded this job, will the US Army supply us a CAD or electronic module of subject parts?

A.9 If it’s truly required with supporting justification, the US Army may provide CAD models of the brackets to the winning contractor only.

Q.10 Is there any other special packaging requirements, foam or how the crates need to be manufactured?

A.10 Brackets need to be secured in crates for shipping, with appropriate marking per the solicitation, and crates need to be stackable per the solicitation. No foam is required.

Q.11 Can I share the TDP with another firm to help me in the bid process, or do they need to request a copy through the solicitation and DD2345?

A.11 No, you cannot share the TDP with another firm. If another is assisting you in the bid process, that firm will need to request access to the TDP through FedBizOps, upon approval of the DD 2345.

Q.12 Can I give you the name of the person that will have questions for you in filling out the solicitation? Allowing this person to contact you direct or do they need to direct all questions through me?

A.12 All questions must come through the company submitting the bid.

Q.13 Do you have, or can you get a 3D model of the brackets in order to better design the shipping containers to secure and protect the brackets?

A.13 CAD models may be provided to the winning contractor only assuming there is a verified need with supporting justification. The solicitation and TDPs provided should be all that is required for quoting proposes.

Q.14 I am working on this Solicitation for pricing and came across an area that is unclear in the pretreating process before painting. Under the spec called out MIL- DTL-53072 what is the pretreating spec that is required for these parts? There are 3 options to choose from. Please see below options under this spec.

MIL-DTL-53072E

TABLE I. The CARC system.

Process

Ferrous Metal

Aluminum and Aluminum Alloys

Cleaning TT-C-490 MIL-DTL-5541 I TT-C-490

Pretreating TT-C-490, type I zinc phosphate and pretreatments for ferrous substrates qualified to types III, IV, and VIII, class A or C DOD-P-15328 (wash primer) MIL-C-8514 (wash primer)

DOD-P-15328 (wash primer) MIL-C-8514 (wash primer)

MIL-DTL-5541/MIL-DTL-81706

(chemical conversion) 11 MIL-A-8625 (anodize) TT-C-490 pretreatments for aluminum substrates qualified to types III, IV, and VIII, class B or C

Priming A-A-59745

MIL-DTL-53022

MIL-DTL-53030

MIL-DTL-53084

MIL-PRF-23377, type I and II, class N 31 MIL-PRF-32348, type I and II

MIL-PRF-23377, type I and II, class N2/

MIL-DTL-53022

MIL-DTL-53030

MIL-DTL-53084

MIL-PRF-85582, type I and II, class N2/ MIL-PRF-32348, type I and II

Topcoating MIL-PRF-22750 (interior only)

MIL-DTL-53039

MIL-DTL-64159

MIL-PRF-32348, type III and IV

MIL-PRF-22750 (interior only)

MIL-DTL-53039

MIL-DTL-64159

MIL-PRF-32348, type III and IV ll Use of type II conversion coating (non-hexavalent chromium) preferred, if approved for application.

21 The use of MIL-PRF-23377 and MIL-PRF-85582, Class N primers are approved for the exterior of aviation assets. For the interior of aviation assets, class C shall be used.

'JI May be used for mixed metal applications. Specific approval shall be obtained for use on ferrous substrates.

3.2 Cleaning. Meticulous cleaning prior to pretreatment and painting operations is critical to meeting the requirements of this specification. Improperly cleaned surfaces can interfere with paint film formation and adhesion, which can cause paint defects and premature paint peeling during service. Unless otherwise specified, surfaces shall be cleaned according to TT-C-490.

Surface oxides, rust, weld spatter, oil, grease and all other organic and inorganic contaminants shall be removed prior to pretreatment. The cleaning method shall be determined by the base material properties, the nature of the soil(s), the degree of contamination and the part geometry.

The following TT-C-490 methods shall be used singly or in combination to produce a clean surface:

a. Method I

b. Method II

c. Method III

Mechanical or abrasive blast cleaning, sanding and grinding.

Solvent cleaning by immersion, spray, vapor or hand wiping.

Detergent cleaning by immersion, spray, ultrasonic, hot alkaline or electrolytic methods.

d. Method IV

e. Method V

f. Method VI

g. Method VII

Emulsion cleaning, with or without added water.

Derusting by chemical means.

Phosphoric acid cleaner (detergent or solvent type with detergent) Steam cleaning, with or without assisted pressure washing.

After cleaning, all surfaces shall be kept free from dirt, dust, finger marks, and other contaminants until treated as specified. Ifthe CARC system cannot be applied immediately after cleaning, then the parts shall be protected from flash rusting and from contamination. Prior to applying the CARC system, the parts shall be re-inspected and cleaned, as required, and pass the water break test (see 4.2.3.1.1).

3.2.1 Abrasive blasting of ferrous metal surfaces. Unless otherwise specified, ferrous metal surfaces to be painted shall be cleaned in accordance with 3.2. If abrasive blasting is used to remove mill scale, products of corrosion, dirt, casting sand, slag and other foreign substances, then follow the procedure in the Society for Protective Coatings specification SSPC-SP5/NACE No. 1 or SSPC-SP 10/NACE No. 2, unless otherwise specified. Abrasive blasting shall always be preceded by cleaning methods most appropriate for the application to assure the substrate is water-break free clean. Using clean water, for example, distilled, deionized, Reverse Osmosis (RO) purified or filtered water in an atomizing sprayer works well in this method for determining the results as described in 4.2.3.1.1. The blast media and maintenance of the abrasive blasting system shall be such that a consistent surface profile is maintained throughout the process and subsequent abrasive blast cleaning. Surface profile measurements shall not exceed the recommended range for the coating system applied and is recommended to be 1.0±0.5 mils, unless specified by the coating manufacturer so as to maintain the performance for coating adhesion and corrosion resistance. Ferrous media or media contaminated with ferrous spoils from previous abrasive blasting shall not be used on non-ferrous metallic substrates. Blast cleaned surfaces shall be coated within four hours with a suitable wash primer or other approved pretreatment material. Applied wash primer shall be dried for at least one hour at a preferred temperature range of 60 to 90 °F (16 to 32 °C). Ifmore than four hours pass before pretreatment, the blasted surface shall be inspected and found free of corrosion or foreign matter, and pass the water break test (see 4.2.3 .1.1) prior to pretreatment and priming. When the use of hexavalent chromium is restricted by contractual requirements, TT-C-490, type I, qualified pretreatments to TT-C-490, types III, IV, and VIII, class A or C or zinc-rich primers conforming to A-A-59745 shall be used as the alternatives on blasted ferrous substrates. Approval from the contracting officer shall be received prior to use of zinc-rich primers on blasted ferrous substrates. The requirement for primer dry film thickness (see 4.2.3.3) over a blasted profile is based upon film build over the peaks of the surface profile.

3.2.1.1 Exemptions from abrasive blasting. Abrasive blasting shall not be used on surfaces that could be damaged, such as machine parts and sheet metal thinner than 16 gauge (0.0625 inches or 1.5875 mm). Blasting is optional, on components painted for protection during limited storage, where the paint wears off as soon as the equipment is placed in use. Component examples are track assemblies, track roller assemblies (including mounting frames), interiors of weld-type box sections, bulldozer components (including rippers, scarifiers, ejectors, push plates, blades, bowls, and buckets), scrapers and crane shovels, interiors of cement mixer drums, and interiors of aggregate driers. However, these surfaces shall be cleaned using one of the methods described in 3.2 and shall be free from oil, grease, dirt, and rust. All surfaces shall be dry prior to h painting.

3.2.1.2 Vehicles. Ferrous metal surfaces of vehicles shall be cleaned for painting in accordance with 3.2.1, except as specified herein. Surfaces that cannot be cleaned by blasting shall be cleaned to base metal by alternate means such as three dimensional/abrasive cleaning, chipping, powered wire brushing, or grinding to the required degree specified for commercial abrasive blasting, if authorized by the contracting agency. Sheet metal and sheet metal parts of 8 gage (0.164 inches or 4.166 mm) and thinner shall be cleaned to bare metal by acid pickling in accordance with TT-C-490, with a maximum of five percent sulfuric acid included. However, chemical cleaning shall not be approved for use on assemblies which entrap acid/alkali or when for any reason chemical cleaning is considered inadvisable. Wire brushes used to clean ferrous surfaces shall be either steel or stainless steel. Brass brushes shall not be used, as there is a possibility of depositing brass particles on the steel surface, potentially accelerating corrosion of steel surfaces. Hand tool cleaning shall be in accordance with SSPC-SP2 and power tool cleaning shall be in accordance with SSPC-SP3.

3.2.2 Zinc surfaces. Zinc surfaces, including zinc-coated substrates, shall be cleaned and activated prior to being pretreated for painting as specified in 3.3.

3.2.3 Aluminum and aluminum-alloy surfaces. Aluminum and aluminum alloys shall be cleaned in accordance with 3.2, followed immediately by treatment as specified in 3.3. Aluminum thicker than l/81 inch and fabricated from 5000 series armor grade aluminum shall be abrasive blasted.

3.2.4 Magnesium alloy surfaces. Magnesium alloy surfaces shall be cleaned in accordance with SAE-AMS-M-3171, followed immediately by treatment as specified in 3.3.

3.2.5 Cadmium surfaces. Cadmium surfaces shall be cleaned in accordance with SAE-AMS- QQ-P-416, followed immediately by treatment as specified in 3.3.

3.3 Pretreating. Chemical surface treatments for metallic substrates provide improved adhesion for subsequent coatings and temporary protection from corrosion. For best results, the pretreatment shall be applied as soon as possible after proper cleaning (see 3.2). The three most common pretreatments are chromate/chromium, phosphate and organic-modified conversion coatings.

3.3.1 Ferrous metal, zinc or cadmium surfaces. These surfaces shall be treated as soon as possible after cleaning as specified in 3.2 with one of the following:

a. Zinc phosphate conforming to TT-C-490, type I.

b. Wash primer (DOD-P-15328 and MIL-C-8514) confo1ming to TT-C-490, type Ill.

c. Pretreatments qualified under TT-C-490, including organic and inorganic pretreatments and pre-primer coatings conforming to types III, IV and VIII, class A or C.

3 .3.1.l Organic pretreatments (Wash Primer). The organic pretreatments in 3.3.1 b are applied to clean metal surfaces to prepare for a more permanent protective anticorrosive primer.

Although wash primers afford some protection for up to 24 hours, they are not intended for permanent protection and these surfaces shall be overcoated with epoxy primer as soon as practical, however no more than 24 hours after wash primer application. After more than 24 hours following application, the wash primer shall be stripped and the finishing process started again. The pretreatment is sufficiently dry for priming one hour after application under preferred atmospheric conditions of 60 to 90 °F (16 to 32 °C). The pretreatment shall not be applied to visibly wet surfaces or where the surface temperature is less than 50°F ( 10°C). The dry film thickness shall be 0.3 to 0.5 mils (7.5 to 12.5 microns). To prepare DOD-P-15328, the resin component shall be stirred or agitated to ensure that all solids content are completely dispersed.

The acid component shall be added slowly with stirring, continuing until a complete blending of the mixture is achieved. The pretreatment material is then ready for use. Ifthe resin component is thickened or gelled, do not add the acid component until fluidity has been restored. This can be achieved by warming up the resin component. The pretreatment is most effective when freshly mixed and shall be used within 8 hours after the addition of the acid component. The quantity of the pretreatment mixed for use shall be the amount required for immediate application. The acid component is not a thinner. It is a necessary activator and shall be used exactly as directed by the manufacturer. When thinning is required for spray application, follow the manufacturers' recommendations.

3.3.2 Aluminum surfaces. Aluminum surfaces shall be treated as soon as possible after cleaning as specified in 3.2 with one of the following:

a. Anodized aluminum and aluminum alloy castings in accordance with MIL-A-8625.

Minimum thickness of 0.0007 inches (.018 mm) is required for wrought aluminum and

0.0004 inches (.010 mm) is required for castings.

b. Chemical conversion conforming to MIL-DTL-5541.

c. Wash primer conforming to DOD-P-15328 or MIL-C-8514.

d. Pretreatments qualified under TT-C-490, including organic and inorganic pretreatments and pre-primer coatings conforming to types Ill, IV and VIII, class B or C.

3.3.3 Magnesium alloy surfaces. Prior to painting, magnesium alloy surfaces shall be treated in accordance with SAE-AMS-M-3171, type I or III, or DOD-P-15328 with half of the specified phosphoric acid. Treated surfaces that become scratched in handling shall be touched up in accordance with SAE-AMS-M-3171, type I. To maintain a system that is free of hexavalent chromium, MIL-DTL-5541, type II or commercial product recommended by the manufacturer and approved by the Program Manager shall be used. For approved products based upon memorandums, contact US Army Research Laboratory, RDRL-WMM-C, Organic Coatings Team, Aberdeen Proving Ground, MD 21005.

3.3.4 Wood surfaces. Unless otherwise specified (see 6.2), wood shall be pressure treated and marked in conformance with AWPA-Tl for above ground, or AWPA-PS for ground contact installations. Wood shall be dried to the specified moisture content appropriate for the size, species, and ultimate service conditions, but in no case greater than 20 percent. Wood painted with CARC shall first be sealed with a polyurethane-based wood sealer.

3.3.5 Stainless steel surfaces. These surfaces shall be treated as soon as possible after cleaning as specified in 3.2 or by one of the alternative methods described in ASTM A380 if the surface is still active. Abrasive blasting shall be specified prior to application of a wash primer conforming to DOD-P-15328 or MIL-C-8514 (see 3.3. l b and 3.3.1.1). Where wash primer is not allowable, a minimum of a 0.5 mil profile shall be achieved using aluminum oxide or other non-ferrous abrasive blasting media prior to painting.

3.3.6 Blasted steel armor. On blasted ferrous armor substrates that have Rockwell C hardness (HRC) greater than 39, wash primer containing phosphoric acid shall not be used. This is due to the risk of hydrogen embrittlement from the phosphoric acid in the component B of the wash primer. In lieu of wash primer, TT-C-490, type I, qualified pretreatments to TT-C-490 types III and IV not containing phosphoric acid or zinc-rich primer conforming to A-A-59745 shall be used as the pretreatment. Refer to 3.2.1, abrasive blasting of ferrous metal surfaces, for alternatives to hexavalent chromium containing pretreatments. For blasted ferrous substrates greater than HRC 42, prior approval from the contracting officer shall be received before zinc- rich primers are used as an alternative. Refer to TT-C-490 for embrittlement testing and stress relief for steel alloys at Rockwell C hardness (HRC) 39 or greater.

Applying Zinc-rich primer to ferrous substrates with a hardness rating greater than HRC 42, is prohibited unless the contractor submits a request for deviation and receives approval.

3.4 Priming. The primer shall be applied to a clean, dry surface within 24 hours of cleaning and pretreating. The preferred temperature range for the application of these primers shall be 60 to 90 °F (16 to 32 °C). Ifpriming is done outside of this range, then all quality control checks shall be done (see 4.2.3) to verify film integrity. The paint and surface shall be approximately the same temperature and not less than 50°F ( 10°C). When surface temperature or air temperature is < 5 °F above dew point, the coating is adversely affected. At relative humidity in excess of 50%, a dew point calculation may be necessary to avoid the formation of moisture on the substrate to be coated. Application shall be by brush or spray, depositing a continuous, adherent film which is smooth, uniform, and free from runs, sags, or other defects that might interfere with the application and adhesion of subsequent coatings (see 4.2.3.8).

The film thickness requirement of each primer is specified in table V. Ifpaint heaters are used to assist in application, the substrate to be coated shall be at least an ambient temperature of 60 °F (16 °C). Dipcoating is not a recommended application method for CARC primers. The anticorrosive primers are primarily epoxies and two component products. The powder coating primers are epoxies, but are one component materials. The zinc- rich primers are either two component epoxies or one component moisture cured urethanes. They are applied to metal substrates to provide corrosion resistance and a surface to which the CARC coating system firmly adheres. The two component products dry by a two stage process of solvent evaporation and chemical crosslinking, and they have a finite potlife, typically 6-8 hours. Environmental conditions, particularly temperature and relative humidity, can affect potlife, curing, and adhesion. Inareas where air quality regulations restrict volatile emissions, do not add thinner to the coating material if that addition exceeds the regulatory limit. Ifthinner needs to be added, consult with the manufacturer of the primer for the appropriate thinner to stay within the regulatory limits. The specific information below for the seven primers is summarized in table II. Ifa contract requires the use of zinc-rich primer, then MIL-DTL-53022 or MIL-DTL-53030 shall be applied over the zinc-rich primer as a barrier coat between the zinc-rich primer and the topcoat. In addition to the liquid primers, there is also an epoxy anticorrosive powder coating primer (MIL-PRF-32348) that can be used in the CARC paint system. When a contract specifies the use of either MIL-DTL-53022 or MIL-DTL-53030, alternative primers MIL-DTL-53084 or MIL-PRF- 32348 are authorized for use only with the approval of the contracting officer.

A.14 From "table I. The CARC system" for the pretreating we have used DOD-P-15328 and MIL-C-8514 in the past.

Q.15 Where am I to find the CDRL document dated 5 August 2016? Additionally where would I find Attachment 001?

A.15 The CDRL A001 is attached as part of the solicitation on the last page. There are no other attachments, only the separately posted TDPs and Solicitation W56HZV-16-R- L135 Amendment 001.