This merit brass tee is a lead free pipe fitting with 14 female npt threads. Fed std h28 5 screw thread standards for federal services, section 5, unified miniature screw threads fed std h28 6 screwthread standards for federal services section 6 gages and gaging for unified screw threadsun and unr thread forms this section provides the standards for basic gaging principles, gaging practice, gage specifications. Fed std handbook h28 was a predecessor ansiasme b1. Changes from the revisions are indicated by using strikethrough to mark deleted text and. This plug has a countersunk hexagonal head for increased leverage during installation and disassembly with a wrench. All figures and tables will maintain the established designations, prefixed with the section. Fedstdh288 screw thread standards for federal services section 8 dryseal pipe threads. Well, it may make it sound like specifying that a hexbolt head shall have 6 points and 6 flats. Fed std h28 31 march 1978 superseding nbs handbook h28 part i 1969 part ii 1957 part iii 1957 federal standard screwthread standards for federal services this standard was approved by the commissioner, federal supply service, general services administration, for the use of all federal agencies. This class 125 fitting meets specifications sae j476, ansi b1. This standard was approved by the commissioner, federal supply service, general services administration, for the use of all federal agencies. Both the fedstdh28, as well as the sae as8879 standards, refer back to the asme b1.
Inserts shall be free of all hanging burrs and slivers which might become. Std h28 fed screwthread standards for federal services. In face bushings, the male threads run the length of the fitting. Fedstdh282 datasheet, cross reference, circuit and application notes in pdf format. Download fed std h28 screwthread standards for federal services book pdf free download link or read online here in pdf.
As3080 thru as3083 special locking torque inserts asme b18. Department of defense mil std 202 test methods, for electronic and electrical component parts. When this standard is approved by the department of defense and federal agencies and is incorporated into federal standard h28 fed std h28, screw thread standards for federal services, section, the use of this standard by the federal government is subject to all the requirements and limitations of federal. Fed std h28 14 screwthread standards for federal services section 14 buttress screw threads7 deg45. How much overlap, and if there are any differences, i am.
Government and are not subject to protection in the u. Pdf m12x0 en3155016m2018 fed std h28 en3155 en3155, contact iso 2669 en3155016m2018 en 3155016 nsa9321 fedstd h28 asne. Gauges and gauging screw thread and gauging standard. All books are in clear copy here, and all files are secure so dont worry about it. Fed std h28 en3155 en3155, contact iso 2669 en3155016m2018 en 3155016 nsa9321 fedstd h28 asne text. Most backordered items can be rushed in from the publisher in as little as 24 hours. This specification covers carbon and alloy steel chain of commercial quality together with the attachments most commonly used with this chain.
Documents sold on the ansi webstore are in electronic adobe acrobat pdf format, however some iso and iec standards are available from amazon in hard copy format. When this standard is approved by the department of defense and federal agencies and is incorporated into federal standard h28 20 fed std h28 20, screw thread standards for federal services, section 20, the use of this standard by the federal government is subject to all the requirements and limitations of federal standard h28 20 fed std h28. Fed std h28 9 gas cylinder valve outlet and inlet threads. Fedstdh289a not 3 screwthread standards for federal. To view the fehb plans for 2019, go to the cross and blue shield service benefit plan. With the exception of sections ix and x, and appendix 5, handbook h28 1944 and the 1950 supplement thereto, are superseded by parts i and ii of handbook h28 1957 and the federal specifications listed in appendix 6 of part i of h28 1957. Fedstdh28 screwthread standards for federal services. Federal standards fed std h28 screwthread standards for federal services fed std 123 marking for shipment civil agencies rrc271f 4 activities outside the federal government may obtain copies of federal specifications. Lead free pipe fitting, hex countersunk plug, 12 npt. The tee fitting is tshaped and has three openings to connect and branch three pipes, two on the main run and one branch at a 90degree angle from the middle of the tee. Chains and attachments, carbon and alloy steel the general services administration has authorized the use of this federal specification by all federal agencies.
Fed std h28 10 screwthread standards for federal services section 10 hose coupling and fire hose coupling screw threads. Fed fed std h28a screwthread standards for federal services superseding fed std h28 standard by federal specifications and standards, 12281994. Attention unified screw thread scholars possessing a copy of nbs handbook h28 screw threads for federal services 1969. Fedstdh289anot1597040screwthread standards for federal services section 9 gas cylinder valve outlet and inlet threads. To find similar documents by federal supply class code. Not only does it define the various systems, but also includes detailed charts on what gages are acceptable for each thread element to be measured. Federal fed std h28 screw thread standards for federal services. Screw threads shall be class 2a or 2b, as applicable see. This document is available in either paper or pdf format. Fedd3tdh28\21bis an updatedversionof fedstdh28121a. Fed std h28b includes the basic screw thread dimensional and acceptability requirements for common screw thread forms and applications.
Nov 12, 2018 federal employees dental and january 6, 2019, to receive your new id card. Documents, reference standards and specifications cam tech. In november 1976, the istc was terminated, and the general services. All mounting and terminal screws, nuts, and washers shall be of corrosionresistant material or shall be protected against corrosion. Fedstdh28 chamfer datasheet, cross reference, circuit and application notes in pdf format. Specification standards federal fed std h28 screw thread standards for federal services. Mil std 202 test methods, for electronic and electrical component parts. Aarp health insurance plans pdf download medicare replacement pdf download aarp medicarerx plans united healthcare pdf download medicare benefits pdf download medicare coverage pdf download medicare part d pdf download medicare part b pdf download fed std h28. Fedstd7915302, corrosive sulfur compounds and free sulfur, 9100, mr. The best choice of inspection technique depends on the particular application.
Mcpherson, chairman, interdepartmental screw thread committee. Fed std h28 4 controlled radius root screw threads, unj. We also offer a line of quality oem test kits and pressure fitting accessories. Fed std h28 6a1 not 1 screwthread standards for federal services section 6 gages and gaging for unified screw threadsun and unr thread forms. Commerce had developed and published nbs handbook h28, screwthread standards for federal services. Fedstd311gen, leather, methods of sampling and testing, 8300, gl, 15 jan. Fed std h28 7 screw thread standards for federal services, section 7, pipe threads, general purpose. This class 125 fitting meets standards sae j476, ansi b 1. The 1957 document was revised and approved as an american national standard on july 26, 1978. Fed std h28 31 march 1978 superseding nbs handbook h28. It was published as a single blue paper bound book and contained part i 1969 part ii 1957 part iii 1957. Fed stdh285 unified miniature screw threads fedstdh286. Fsc standardization area thds screw threads this document comes with our free notification service, good for the life of the document. Fedstdh288 screw thread standards for federal services.
Both the fed std h28, as well as the sae as8879 standards, refer back to the asme b1. Fed fedstdh28 6a screwthread standards for federal services section 6 gages and gaging for unified screw threadsun and unr thread formssuperseding fed std h28 6 standard by federal specifications and standards, 03051985. Rrc271f chains and attachments, carbon and alloy steel. Find the most uptodate version of fed std h28b at engineering360. Fed std h28 31 march 1978 federal standard screwthread standards for federal services. Information and documents presented here are works of the u. All appendices will be incorporate in the basic document fed std h28 with other general. Lead free pipe fitting, face bushing, 12 npt male x 14. Specific requirements for particular screw threads, gages, etc. Material to procurement specs ffs92, fed st 66, qqs763, astm a493.
Formulns and data for use with specird threads me nlso provided in table 12. Nbs handbook h28 1969 superseding h28 1957 part i and that applicable to part i in the 1963 supplement to h28. Mar 23, 2020 6 when supplies are returned to the contractor, the contractor shall bear the transportation costs from the place of delivery specified in the contract irrespective of the free on board point, or the point of acceptance to the contractors plant and return. Inch pound 25 june 1999 superseding performance specification. Fyi, the foreword in the fed std h28 explains the difference between h28. Code states that the authority for development of federal standards for procurement purposes rests with the general services administration gsa. See also other parts and fedstd h28 set format details price pdf.
Fed fed std h28 6a screwthread standards for federal services section 6 gages and gaging for unified screw threadsun and unr thread formssuperseding fed std h28 6 standard by federal specifications and standards, 03051985 amendments available. Fedstdh286a, screwthread standards for federal services, section 6. The drawing is probably making explicit the thread standard, rather than let it be implicitly assumed to be h28 or asme b1. Lead free brass is comparable in strength to stainless steel and is more corrosion resistant.
Design and use information are also provided when necessary. Fed std h28 screw thread standards for federal services as3094a. Gaugetec offers a complete, professional cleaning and evaluation of your backflow test kit. Documents, reference standards and specifications cam. Read online fed std h28 screwthread standards for federal services book pdf free download link book now. Beneficial comments recommendations, addition, deletions and. The type of terminal, size of screw thread, and the exposed. It is made from lead free brass which is comparable in strength to stainless steel and more corrosion resistant. Fedstdh285 unified miniature screw threads fedstdh286.
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