1、1 INCH - POUND I 27June 1994 SUPERSEDING MIL-R-85523 5 AUGUST 1983 MILITARY SPECIFICATION REGULATOR, CHEST MOUNTED, POSITIVE PRESSURE, CRU-82/P This specification is approved for use by the Naval Air Systems Command, n Department of the Navy, and is available for use by all Departments and Agencies
2、of the Department of Defense. Y 1. SCOPE 1.1 Scope. This specification covers the requirements for a positive pressure, chest mounted regulator. This regulator will be used as part of an aircraft on-board oxygen generating system (OBOGS) or an aircraft liquid oxygen system (LOX) to provide breathing
3、 gas on demand. provide safety pressure under all conditions as well as positive pressure breathing at altitudes above 34,000 ft. This regulator will 2. APPLICABLE DOCUMENTS 2.1 Government documents 2.1.1 Specifications. standards, and handbooks. The following specifications, standards, and handbook
4、s form a part of this specification to the extent specified herein. Unless otherwise 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 6.2b). Benefi
5、cial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, Naval Air Warfare Center Aircraft Division, Code SR3, Highway 547, Lakehurst, NJ 08733-5100, by using the self-addressed Standard- ization Do
6、cument Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A FSC 1660 DISTRIBUTION STATEMENT A. Approved for pub1 ic release; distribution is un1 imited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R
7、-85523A 9999906 I198LL4-5 89T W MIL-R-85523A(AS) SPECIFICATIONS FEDERAL BB-N-411 - Nitrogen, Technical PPP-B-601 - Boxes, Wood, C1 eated-Plywood PPP-B-621 - Boxes, Wood, Nailed and Lock Corner PPP-B-636 - Boxes, Shipping, Fiberboard PPP-B-640 - Box, Fi berboard, Corrugated, Trip1 e-Wal 1 MI L I TARY
8、 MIL-P-116 - Preservation, Methods of MIL-C-5541 - Chemical Conversion Coatings on Aluminum and Aluminum Al 1 oys MIL-A-8625 - Anodic Coatinqs, for Aluminum and Aluminum Alloys MIL-0-27210 - Oxygen, Aviators Breathing, Liquid and Gas MIL-G-27617 - Grease, Aircraft and Instrument, Fuel and Oxidizer R
9、esistant STANDARDS FEDERAL FED-STD-595 - Colors Used in Government Procurement MI L ITARY MIL-STD-105 - MIL-STD-129 - MIL-STD-130 - MIL-STD-810 - MIL-STD-889 - MIL-STD-970 - MIL-STD-1359 - MS2 7 796 - HANDBOOKS M I L ITARY Sampling Procedures and Tables for Inspection by Attributes Marking for Shipm
10、ent and Storage Identification Marking of U.S. Military Property Environmental Test Methods and Engineering Guidelines Dissimilar Metals Standards and Specifications, Order of Preference for the Selection of Cleaning Methods and Procedures of Breathing Oxygen Equipment Connector-Bayonet, Three Pin,
11、Oxygen Mask MIL-HDBK-695 - Rubber Products: Recommended Shelf Life 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-R-85523A Ob 198LLi1b 2b = (Unless otherwise indicated, copies of federal and military specifications and standards, and handbook
12、s are available from Standardization Documents Order Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) 2.1.2 Other Government documents, drawinqs and publications. The following other Government documents, drawings, and publications form a part of this specification to the extent
13、specified herein. Unless otherwise specified, the issue shall be those in effect on the date of solicitation. DRAWINGS NAVAL AIR SYSTEMS COMMAND 62A-116-C48 - Piezometer 1440AS101 - Regulator, Chest Mounted, Positive Pressure, CRU-82/P 62A-116-E1 - Oxygen Components Test Stand 1172AS100 - Oxygen Com
14、ponents Test Stand 1316AS100 - Oxygen Components Test Stand MBEU130049 - Manifold Assembly PUBLICATIONS OFFICE OF THE ASSISTANT SECRETARY OF DEFENSE FOR ACQUISITION AND LOGISTICS SD-6 - Provisions Governing Qualification (Qualified Products Li st) (Copies of specifications, standards, handbooks, and
15、 drawings required by manufacturers in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting off i Cer. ) 2.2 Non-Government publications. The following document(s) form a part of this specification to the extent specified h
16、erein. Unless otherwise specified, the issues 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 documents not listed in the DODISS are the issues of the documents cited in the solicitation (see 6.2b
17、). AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM D1149 - Rubber Deterioration-Surface Ozone Cracking in a Chamber (Flat Specimen) Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103. 3 Provided by IHSNot for
18、ResaleNo reproduction or networking permitted without license from IHS-,-,-flIL-R-85523A w 9999906 17831147 662 9 (Non-Government standards and other publications are normally available from organizations that prepare or distribute the documents. be available through libraries or other informat onal
19、 services.) These documents may also 2.3 Order of Precedence. In the event of a this specification and the references cited here shall take precedence. Nothing in this document 1 aws and regul at ions un1 ess a speci fi c exempt i on 3. REQUIREMENTS conflict between the text of n, the text of this d
20、ocument however, supersedes applicab has been obtained. e 3.1 Qualification. The regulators furnished under this specification shall be products which are authorized by the qualifying activity for listing on the applicable qualified products list at the time of award of contract (see 4.3 and 6.4). 3
21、.2 First article. When specified (see 6.2), the regulator shall be subjected to first article inspection (see 6.5) in accordance with 4.4. 3.3 Selection of specifications and standards. Specifications and standards for necessary commodities and services not specified herein or in applicable detail s
22、pecifications, shall be selected in accordance with MIL-STD-970. 3.4 Parts, materials and processes. In the selection of parts, materials and processes, fulfillment of major design objectives shall be the prime consideration. Materials shall conform to referenced specifications and shall be as speci
23、fied herein and on referenced drawings. Materials which are not covered by specifications, or which are not specifically described herein, shall be of the best quality, of the lightest practicable weight, and suitable for the purpose intended. 3.4.1 Standard Darts. MS and AN standard parts shall be
24、used where they suit the purpose. clean. When MS or AN standard parts are used, they shall be oxygen 3.4.2 Metal parts. All metal parts shall be of a corrosion resistant material or treated in a manner to render them adequately resistant to corrosion. 3.4.2.1 Dissimilar metals. Unless suitably prote
25、cted against electrolytic corrosion, dissimilar metals shall not be used in intimate contact with each other. Dissimilar metals are defined in MIL-STD-889. 3.4.2.2 Finish. Aluminum and aluminum alloy parts shall be protected in accordance with MIL-A-8625 or MIL-C-5541. 3.4.3 Elastomer parts. Any ela
26、stomer part that is adversely affected by continued use with oxygen shall not be used. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-85523A 77777Ob 3783348 5T7 3.4.3.1 Age. Elastomer parts except silicone shall be not more than 12 months ol
27、d from the date of manufacture to the date of delivery to any Government service or to any airframe or accessory manufacturer. 3.4.3.2 Ozone resistance. The elastomer parts shall be composed of ozone resistant materials, which shall not bloom, and shall meet the specified ozone resistance performanc
28、e requirements. 3.4.3.3 Storaqe life. Elastomeric materials selected shall have an expected shelf storage life of 8 years or more based on the guidelines of MIL-HDBK-695 when such materials will provide the required physical, mechanical, and chemical properties. 3.4.4 Orsanic parts. All organic part
29、s, regardless of state or modification, used in the regulator construction shall not support fungoid growth, as defined in MIL-STD-810, Method 508. 3.4.5 Protective treatment. When materials used in the construction of the regulator are subject to deterioration when exposed to environmental conditio
30、ns likely to occur during service usage, they shall be protected against such deterioration in a manner that shall in no way prevent compliance with the performance requirements of this specification. Protective coating which might crack, chip or scale during normal service life or under extremes of
31、 envi ronmental conditions shall not be used. 3.4.6 Adhesives. The regulator shall not contain glue, varnish or other such coatings or adhesives to secure parts (except labels) or to seal leaks. 3.4.7 Cleanliness. 3.4.7.1 Deqreasinq. Prior to assembling the regulator and its subassemblies, all inter
32、nal surfaces shall be degreased in accordance with MIL- STD-1359. 3.4.7.2 Lubricants. Lubricants qualified to MIL-G-27617 may be used sparingly on seals and straight threads if assembly difficulty is encountered. 3.4.8 Toxic materials. Materials that produce toxic or corrosive substances shall not b
33、e used in the construction of the regulator. 3.4.9 Workmanship. The regulators shall be uniform in quality and shall be free from irregularities, defects, oil, grease or foreign material which could adversely affect safety, performance, reliability, or durability. 3.5 Desiqn and construction. The re
34、gulator shall be designed in accordance with envelope drawing 1440AS101. the specified envelope dimensions. The regulator size shall be not greater than A relief valve need not be included in the 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-
35、R-85523A W 9999906 L98LL49 435 regulator design. If a relief valve is incorporated in the regulator design, it shall be considered as part of the regulator in terms of meeting all the requirements of this specification. Regulators which incorporate a relief valve shall be subjected to the test condi
36、tions in 4.8.4.3 and shall pass the requirements of 3.6.4.3. 3.5.1 Operation. The regulator shall be capable of providing the outlet pressures specified at the flows, inlet pressures, al ti tudes, acceleration 1 eve1 s and environmental conditions specified. 3.5.2 Connections. The regulator shall re
37、quire no input or output connections other than those indicated on drawing 1440AS101. require no electrical power. than as indicated on drawing 1440AS101. The regulator shall 3.5.3 Mountinq. lhe regulator shall require no mounting or support other 3.5.4 Inlet fittinq. The inlet fitting shall be in a
38、ccordance with drawing 1440S101. replaced. The fitting shall be installed such that it can be easily removed and The inlet fitting shall contain a filter as specified in 3.5.5. 3.5.5 Filters. A filter capable of filtering materials 70 microns in size shall be provided in the inlet fitting to prevent
39、 foreign particles from entering the regulator while in service. The filter shall be installed such that it can be removed and replaced as part of the inlet fitting. Similar size screens and filters shall also be provided in all ambient pressure sensing ports. 3.5.6 Odor. The interior of the regulat
40、or shall 3.5.7 Moisture. The design shall include provis from entering and collecting within the regulator. 3.5.8 Pluss. All openings in the regulator shal caps or plugs to prevent foreign matter from entering shipping and storage. be free from odor. ons for preventing moisture be closed with plasti
41、c the regulator during 3.5.9 Weisht. The weight of the oxygen regulator shall be not greater 10.5 ounces. 3.5.10 Interchanqeability. All parts, subassemblies and assemblies hav the same part number shall be dimensionally and mechanically interchangeable 3.5.11 Aneroid adjustment. The regulator shall
42、 be designed so that the aneroid can be easily adjusted. Aneroid bleed holes shall be v sible, accessible, and capable of being blocked. 3.5.12 Identification of product. The regulator shall be accordance with MIL-STD-130. dentified in han 6 Provided by IHSNot for ResaleNo reproduction or networking
43、 permitted without license from IHS-,-,-MIL-R-85523A H 999990b 3983350 157 H 3.5.13 Serial numbers. The regulator shall be identified by an individual serial number which shall be assigned by the manufacturer. Serialization shall be by block of consecutive numbers to cover the entire acquisition qua
44、ntity (see 6.2). 3.5.14 Color. The color of the regulator shall be black, approximately matching color number 37038 of FED-STD-595. 3.5.15 Relief valve. A relief valve is optional to the regulator design. If a relief valve is incorporated in the regulator design, the regulator shall pass the require
45、ments of 3.6.4.3 when tested as specified in 4.8.4.3. 3.6 Performance. 3.6.1 Visual examination. 3.6.1.1 Requlator. The regulator, when inspected in accordance with 4.8.1.1 shall have no more than the number of defects listed in Table I. 3.6.1.1.1 Dimensions. The regulator, when inspected in accorda
46、nce with 4.8.1.1.1, shall conform to Drawing 1440AS101. 3.6.1.2 Packaqinq. The packaging, when inspected in accordance with 4.8.1.2, shall have no more than the number of defects listed in Table I. 3.6.2 Outer pressures. 3.6.2.1 Dynamic Dressure. The outlet pressure of the regulator, when tested as
47、specified in 4.8.2.1, shall be in accordance with the limits specified in Table II. 3.6.2.2 Steady state pressure. 3.6.2.2.1 Performance. The outlet pressure of the regulator, when tested as specified in 4.8.2.2.1, shall be in accordance with the limits specified in Table III. 3.6.2.2.2 Performance
48、samplinq. The outlet pressure of the regulator, when tested as specified in 4.8.2.2.2, shall be in accordance with the limits specified in Table IV. 3.6.3 Noise level. The noise level of the regulator, when tested as specified in 4.8.3, shall be not greater than the limits specified in Table V. 3.6.
49、4 Leakaqe. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-R-85523A 9999906 1981151 093 3.6.4.1 Body leakase. The regulator, when tested as specified in 4.8.4.1, shall not show any evidence of leakage through the body. rate shall not exceed 0.750 liters per minute (lpm). The designed bleed flow 3.6.4.2 Demand valve leakaqe - outward. The outlet pressure of the The outlet pressure
