1、MIL-C-21049F ib m 9999906 O468350 7 m INCH-PO UN MIL-C-21049F 31 DECEMBER 1990 SUPERSEDING MIL-C-21049E 16 September 1985 MILITARY SPECLFICATION COUPLING ASSEMBLIES, QUICK DISCONNECT, AIRCRAFT LIQUID OXYGEN SYSTEMS This specification is approved for use by all Departments and Agencies of the Departm
2、ent of Defense. 1. SCOPE 1.1 Scope. This specification covers two types of liquid oxygen quick- di sconnectcoupl i ng assembl ies and coup1 i ng ha1 ves. 1.2 Classification. Coupling assemblies shall be of the following types, as specified (see 6.2b): Type I - Supply coupling assemblies Type II - Ve
3、nt coupling assemblies 2. APPLICABLE DOCUMENTS 2.1 Government documents. * 2.1.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this document to the extent speci fi ed herei n . documents are those listed in the issue of the Department
4、 of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation (see 6,Zd). Un1 ess otherwi se speci fi ed , the i ssues of these SPECIFICATIONS FEDERAL O-T- 620 1, 1 , 1, Tri chl oroethane , Techni cal , Inhibited PPP-B-566 Boxes, Fol ding , Paperboard (
5、Methyl Chloroform) _-_ -_._-“ ._y. - -.- u -.-I -e-=.- _ _-_.II_- - - Benefi ci al comments ( recommendati ons , additions , deletions) and any perti nent data which may be of use in improving this document should be addressed to: Systems Engi neeri ng and Standardization Department (Code 53) , Nava
6、l Ai r Engi neeri ng Center, Lakehurst, NJ 08733-5100, by using the standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by AMSC N/A FSC 1660 DISTRIBUTION STATEMENT A. . . -. -. -.- - -_ 1 etter. _a_ . ._ Approved for public release, disribution is un
7、limited. Licensed by Information Handling ServicesMIL-C-2L049F Lb 9997906 04bLSL 9 MIL-C-21049F SPECIFICATIONS (Contd) FEDERAL PPP-B-636 PPP-B-665 PPP-B-676 PPP-c-1752 PPP-c-1797 PPP-C-1842 MILITARY MIL-P-116 MIL-B-121 MIL-0-27210 STANDARDS MI LITARY MIL-STD-105 MIL-STD-129 MI L-STO-970 MIL-STD-781
8、MIL-STD-810 MIL-STD-889 MS22068 Boxes, Shipping , Fi berboard Boxes, Paperboard, Metal Edged and Components Boxes, Setup Cushioning Material, Packaging, Unicellular Polyethylene Foam, Flexible Cushioning Material, Resilient, Low Density, Uni ce1 1 u1 ar , Polypropylene Foam Cushioning Material, Plas
9、tic, Open Cell (For Packaging Appl i cations) Preservation, Methods of Barrier Material, Greaseproofed, Waterproofed, F1 exi bl e Oxygen, Aviator I s Breathi ng , Li quid and Gas Sampling Procedures and Tables for Inspection by Attributes Marking for Shipment and Storage Standards and Specifications
10、, Order of Precedence for The Selection of Re1 i abi 1 i ty Testi ng For Engi neeri ng Deve1 opment, Qualification, and Production Environmental Test Methods and Engineering Guidelines Di ssimi 1 ar Metal s Coup1 i ng Assembl ies, Quick Disconnect , Aircraft Li quid Oxygen Systems (Un1 ess otherwi s
11、e indicated , Copi es of federal and mi 1 itary speci fi cations, standards, and handbooks are available from the Standardization Documents Order Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094) * 2.2 Non-Government publications. The following. document forms a part of this docume
12、nt to the extent specified herein. of the documents which are DOD adopted are those listed in the issue of the DODISS cited in the solicitation. Unless otherwise specified issues of documents not listed in the DODISS are the issues of the documents cited in the solicitation (see 6.2d). Unless otherw
13、ise specified, the issues UNIFORM CLASSIFICATION COMMITTEE, AGENT Uniform Freight Classification (Application for copies should be addressed to the Uniform Classification Committee, Room 1106, 222 South Riverside Plaza, Chicago, IL 60606.) 2 Licensed by Information Handling ServicesMIL-C-21049F Lb =
14、 79979Ob 04b152 O = MIL-C-21049F ( Non-Government standards and her pub1 i cations are normal 1 y avai 1 ab1 e from the organizations that prepare or distribute the documents. These documents also may be available in or through 1 ibraries or other informational services. 1 * document and the referen
15、ce cited herein, (except for related associated detail specifications, specification sheets, or MS standards) the text- of this document takes precedence. Nothing in this document, however, supersedes appTicable laws and regulations unless a specific exemption has been obtained. 2.3 Order of precede
16、nce. In the event of a conflict between the text of this 3. REQUIREMENTS 3.1, Qualificatian. The couplings furnished under this specification shal .be * products Wh96hhorized by the qual i fying activity or listing on the applicable qual tfied products Pi st at the the -of award 4.3.15 and 6,4). In
17、addition, the retentfun atiori for coupl i rtgs on the appli cable qualfffed produc veri fi cati on of continued cornpT=tg-ce w$th th see 4.3 and 4.3,2). contract (see 4.3, ndent ff- pidi %- apeci fi F; however, information pertaining to qualification of products should be obtained from the Commande
18、r, Naval Air Devel opment Center, Warmi nster Pennsylvania 18974-5000, Attention: Code 6031. 6.4.1 Documentation. When requested, the manufacturer shall make available engineering drawi ngs and inspection reports i n accordance with SD-6 6.5 First article. When a f-rst article inspection is required
19、, the item(s) should be a first article sample. instructions in acquisition documen- Torque, type II 3.6.3.2 ; Locking device, type I (without torque) 3.6.4.1 . Locking device, type I (with torque) f Leakage, type I (coupling halves) Leakage, type I (coupling assembly) 3.6.4.2 Leakage, type I (with
20、side load) 3.6.4.3 Operational , type I 3.6.7.1 Operati onal , type I I 3.6.7.2 I i 1 I L Proof pressure, type I 3.6.6 P Burst pressure, type I 3.6.8 -.- r “_._ I -I i Test Method Paragraph ( s 4.7.1.1 1 4.7.1.2 f i i ! 4.7.2.1 4.7.2.2 4.7.3.1 4.7.3.2 4.7.4.1 4.7.4.2 4.7.5.2 i i I 4.7.5.1 i 4.7.5.3
21、f 4.7.6 F 4.7.7 4.7.8.1 4.7.8.2 f t 4.7.9 4.7.10.1 i 4.7.10.2 1 4.7.11.1 4.7.11.2 ! 4.7.12.1 i 4.7.12.2 4.7.13.1 4.7.13.2 4.7.14 - I - ._. .* r A- .- “ _-I*- - or improper size, location, sequence, or method or application; markings not the same on the interior containers. Any nonconforming componen
22、t; any component missing, damaged, or otherwise defective. Inadequate application of the components such as incomplete closure of the unit package, intermediate package, container f 1 aps , 1 oose strappi ngs , etc. ; bu1 gi ng or di storti on of the containers. Number per container is more or less
23、than required; gross or net weight exceeds the requirements; more than one type in the same container, 20 Licensed by Information Handling ServicesB D k POUNDS LOAD Figure 1. Leakage test with side load. 21 “U.S. GOVERMENT PRINTING OFFICE: 1991-504-034/50114 Licensed by Information Handling Services
