1、A-A-50632A 17 July 1997 SUPERSEDING 10 February 1995 A-A-50632 Beneficial comments recommendations, additions, deletions, clarifications etc. and any other data which may improve this document should be sent to: Commander, SEA 03R42, Naval Sea Systems Command, 2531 Jefferson Davis Hwy, Arlington, VA
2、 22242-5160. - COMMERCIAL ITEM DESCRIPTION STRAINER, SIMPLEX, CONTINUOUS SELF-CLEANING The General Service Administration has authorized the use of this commercial item description, for all federal agencies. 1. SCOPE 1.1 ScoDe. This commercial item description covers continuous self-cleaning simplex
3、 strainers. 1,2 the discharge side of the pump in the fuel/lubricating oil piping systems. Intended use. The strainers specified are intended for installation on 2. CLASSIFICATION 2.1 Classification. Units should be of the following types and classes as specified (see 7.1) : Type I - 150 pound per s
4、quare inch gage (psig) pressure rating. Type II - 300 psig pressure rating. Type III - 600 psig pressure rating. Class i - 75 Micron rating. Class 2 - 40 Micron rating. Class 3 - 25 Micron rating. 3. SALIENT CHARACTERISTICS 3.1 Codes and standards. Strainer shall comply with the applicable requireme
5、nts of table I. AMSC N/A FSC 4730 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Licensed by Information Handling Serviceslcli 9999974 OLbL023 8bO A-A-50632A (CH) Equipment/Characteristic Fluid type Operation pressure (Design) TABLE I. Reference data. Description F
6、uel, lubricating oil 150, 300, 600 psi Gage, sump drain and vent Pressure resistance Temperature range I 70 to 250F SAE J 1926 FCI 78-1 I Piping connections Flow capacity Shock resistance Vibration resistance Airborne noise Motion PACKAGING 6.1 Commercial. Commercial packaging shall be in accordance
7、 with ASTM D 3951. 6.1.1 Container modification. Shipping containers exceeding 200 pounds gross weight shall be provided with a minimum of two, 3- by 4-inch nominal wood skids laid flat, or a skid- or sill-type base which will support the material and facilitate handling by mechanical handling equip
8、ment during shipment, stowage and storage. 7. NOTES (This section contains information of a general or explanatory nature that may be helpful, but is not mandatory.) 7.1 Acuuisition reuuirements. Title, number, and date of this commercial item description. Type and class required (see 1.2). Issue of
9、 DoDISS to be cited in the solicitation, and if required, the specified issue of individual documents referenced (see 7.2.1.1 and 7.2.2). Type and size of inlet and outlet connections and whether flanged or not flanged (see table I). Whether gage connections are required at inlet and outlet (see tab
10、le I). The required design flow capacity, design pressure, range of fluid temperature and viscosity, and maximum allowable pressure drop (see table I). Alternate strainer element design and characteristics (see 3.3.2.2). Alternate or additional design characteristics (see 3.3.4, 3.3.5 and Quantity o
11、f technical manuals and drawings required (see 7.3). Whether repair parts are required (see 7.5.1). 3.3.6). 7.2 Sources of documents. 7.2.1 Government documents. The following documents of the issue in effect on date of invitation for bids of request for proposal, form a part of the comercial item d
12、escription to the extent specified. 7 Licensed by Information Handling Servicesslls 9999974 OLbLO29 289 A-A-50 63 2A ( SH) 7.2.1.1 Svecifications. standards, and handbooks. The following specifications, standards, and handbooks form a part of this document to the extent specified herein. Unless othe
13、rwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation (see 7.1). SPECIFICATIONS DEPARTMENT OF DEFENSE MIL-S-901 - MIL-R-83248 - MIL-R-83248/1 - STANDAR
14、DS DEPARTMENT OF DEFENSE MIL-STD-167-1 - MIL-STD-740 - MIL-STD-1399 - Shock Tests, H.I. (High Impact): Shipboard Machinery, Rubber Fluorocarbon Elastomer, High Performance Fluid, Rubber Fluorocarbon Elastomer, High Temperature Fluid, Equipment and Systems, Requirements For. and Compression Set Resis
15、tant. and Compression Set Resistant (O-rings, Class 1, 75 Hardness) . Mechanical Vibrations of Shipboard Equipment (Type I - Airborne and Structureborne Noise Measurements and Interface Standard for Shipboard Systems Section Environmental and Type II Internally Induced). Acceptance Criteria of Shipb
16、oard Equipment. 301 Ship Motion and Attitude. copies of federal and military specifications, (Unless otherwise indicated standards, and handbooks are available from the Standardization Documents Order Desk, BLDG. 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) 7.2.2 Non-Government vublications
17、. The following document(s) form a part of this specification to the extent specified herein. Unless otherwise specified, the issue of the documents which are DOD adopted are those listed in the issue of the DODISS cited in the solicitation. Unless otherwise specified, the issues of the documents ci
18、ted in the solicitation (see 7.1). AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI) ANSI B 16.5 - Steel Pipe Flanges and Flanged Fittings. ANSI B 93.31 - Multi-Pass Method for Evaluating the Filtration (DoD adopted) Performance of a Fine Hydraulic Fluid Power Filter Element. (Application for copies shou
19、ld be addressed to the American National Standards Institute, Inc., 1430 Broadway, New York, NY 10018.) AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM A 167 - ASTM A 276 - ASTM D 3951 - ASTM E 437 - ASTM F 593 - ASTM F 594 - Standard Specification for Stainless and Heat- Resisting Chromium-N
20、ickel Steel Plate, Sheet, and Strip. (DoD adopted) Standard Specification for Stainless and Heat- Resisting Steel Bars and Shapes. (DoD adopted) Standard Practice for Commercial Packaging. Standard Specification for Industrial Wire Cloth and Standard Specification for Stainless Steel Bolts, Standard
21、 Specification for Stainless Steel Nuts. Screens (Square Opening Series). Hex Cap Screws, and Studs. (Application for copies should be addressed to the American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2859. ) 8 Licensed by Information Handling Services O
22、 9979974 0161030 TTO O A-A-5 O63 2A (SH) i FLUID CONTROL INSTITUTE (FCI) 78-1 - Pressure Rating Standard for Pipeline Strainers Other than “Y“ Type. (Application for copies should be addressed to the Fluid Control institute, Inc., P.O. Box 3854, Tequesta, FL 33458.) INSTRUMENT SOCIETY OF AMERICA (IS
23、A) S75.02 - Control Valve Capacity Test Procedure. (Application for copies should be addressed to the Instrument Society of America, 67 Alexander Dr., P.O. Box 12277, Research Triangle Park, NC 27709.) SOCIETY OF AUTOMOTIVE ENGINEERS (SAE) J 1926 - Specification for Straight Thread O-ring Boss Port.
24、 (Application for copies should be addressed to the Society of Automotive Engineers Inc., 400 Commonwealth Drive, Warrendale, PA 15096-0001) (Non-Government standards and other publications are normally available from the organizations that prepare or distribute the documents. These documents also m
25、ay be available in or through informational service.) 7.2.3 Order of orecedence. In the event of a conflict between the text of this document and the references cited herein the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unle
26、ss a specific exemption has been obtained. 7.3 Technical documents. Unless otherwise specified, a technical manual shall be provided. The technical content of these manuals should include sufficient technical details to enable a repair, maintenance, or overhaul activity to restore the equipment dime
27、nsions, clearances, and tolerances such that the equipment is capable of perform- ing its function as originally specified and is capable of being logistically supported by the DoD logistics support system. 7.4 Sub-contracted material and warts. The packaging or delivery preparation requirements of
28、referenced documents listed in section 7.2 do not apply when material and parts are acquired by the contractor for incorporation into the equipment and lose their separate identity when the equipment is shipped. 7.5 Orderinu sDare or reDair Darts. When ordering spare parts or repair parts for the eq
29、uipment covered by this commercial item description, the contract should state that such spare parts and repair parts should meet the same requirements and quality assurance provisions as the parts used in the manufacture of the equipment. Packaging for such parts should also be specified. 7.5.1 1 r
30、ts boxes. Complete sets of repair parts elements for each type and class shall be furnished as follows: (a) One set elements for each of the ten initial strainers supplied. (b) One set elements for each two additional strainers supplied. (c) Cover gaskets - four for every strainer supplied. (d) Othe
31、r gaskets, seals and springs - one set for every ten strainers supplied. When specified (see 7.1) items (c) and (d) shall be furnished in repair boxes. 7.6 Preinstallation instruction. A set of instructions covering the preinstallation of the equipment should be furnished. Instructions should includ
32、e all information necessary to return the unit to active status, such as, but not limited to: the addition of lubricants prior to operation, 9 Licensed by Information Handling ServicesII 9999974 OLbLO3L 937 A-A-50632A (SH) flushing of lines, removal of greaseproof barrier and the location of detache
33、d components. Instructions should be packaged in a transparent waterproof plastic bag. Closure should be by heat sealing. The shipping container ir! which the instructions are packed should be so marked. 7.7 Part number. The part number is a definitive number which corresponds to the type, class, si
34、ze, and rated flow of strainers covered by this commercial item description. The commercial item description number, the type and class code letter, and the size and rated flow code numbers are combined to form a definitive part number. Part numbers for the strainers are assigned as follows: A-A-506
35、32A - X - - XX I I I Commercial item description number Type and class code letter Size and rated flow code number 7.7.1 Tvpe and class. The type and class of strainer (see 2.1) are identified by a single letter (see table IV). TABLE IV. Code letter to tvwe and class. Type I I II I III 7.7.2 Size an
36、d rated flow. The size and rated flow of strainer (see 2.1) are identified by a double digit number (see table V). TABLE V. Code number to size and rated flow. , II Rated flow (gpm) 10 Licensed by Information Handling Services9999974 OLbL032 873 D A-A-50632A (SH) 7.8 Subject term (kev word) listing
37、Continuous Screen Cleaning Filtration Fittings Motor Fuel Lube oil Valves MILITARY INTERESTS: Custodians: Army - AT Navy - SH Air Force - 16 Review activities: Army - CR, MR Air Force - 10 Navy - OS, CG, MC DLA - CS Preparing activity: Navy - SH (Project 4730-0153) Civil agency coordinating activities: (where appropriate) AGR - APS HHS - FEC GSA - FSS 11 Licensed by Information Handling Services
