1、_ SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising there
2、from, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2015 SAE International All rights reserved. No part of this p
3、ublication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-497
4、0 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/AS5782AAEROSPACESTANDARDAS5782 REV. A Issued 2007-07 Reaffirmed 2013-11 Revised 2
5、015-04 Superseding AS5782Retainers (Backup Rings), Hydraulic and Pneumatic, Polytetrafluoroethylene Resin, Solid, Un-Cut, For Use in AS4716 Glands RATIONALE This revision updates the metric conversions and includes some minor editorial changes. 1. SCOPE This SAE Aerospace Standard (AS) covers solid,
6、 uncut polytetrafluoroethylene (PTFE) retainers (backup rings) for use in glands in accordance with AS4716. They are for use in hydraulic and pneumatic system components as anti-extrusion devices in conjunction with O-rings, packings and other elastomeric seals for static and dynamic applications. B
7、ecause of the construction of groove dimensions, backup rings specific to rod applications are designated “R” - Rod (Female), backup rings specific to piston applications are designated “P” - Piston (Male). Piston and rod types of virgin pigmented PTFE are also identified by color code which also di
8、stinguishes parts to this standard from those made from virgin PTFE to other standards. 1.1 Field of Application Backup rings specified herein have been designed for a temperature range of -65 to 275 F (-54 to 135 C) and a nominal operating pressure of 3000 psi (20 694 kPa) for code 09 material (AMS
9、3678/9). Alternate materials to AMS3678 are offered for more arduous operating conditions. This specification includes material tests but does not include hydraulic or pneumatic performance tests. 2. REFERENCES 2.1 Applicable Documents The following publications form a part of this document to the e
10、xtent specified herein. The latest issue of SAE publications shall apply. The applicable issue of other publications shall be the issue in effect on the date of the purchase order. In the event of conflict between the text of this document and references cited herein, the text of this document takes
11、 precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. SAE INTERNATIONAL AS5782A Page 2 of 33 2.1.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-73
12、23 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org.AS4716 Gland Design, O-ring and Other Elastomeric Seals AMS3678 Polytetrafluoroethylene (PTFE) Moldings and Extrusions Unfilled, Pigmented, and Filled Components AMS3678/2 Type 2 - 15% Graphite Filled Virgin Polytetrafluoroethy
13、lene (PTFE) Moldings or Extrusions AMS3678/3 Type 3 - 15% Glass, 5% Molybdenum Disulfide Filled Virgin Polytetrafluoroethylene (PTFE) Moldings or Extrusions AMS3678/5 Type 5 - Virgin Polytetrafluoroethylene (PTFE) Moldings or Extrusions with Pigment AMS3678/6 Type 6 - 60% Bronze Filled Virgin Polyte
14、trafluoroethylene (PTFE) Moldings or Extrusions AMS3678/7 Type 7 - Virgin Polytetrafluoroethylene (PTFE) Moldings or Extrusions with 25% Carbon and Graphite AMS3678/8 Type 8 - Virgin Polytetrafluoroethylene (PTFE) Moldings or Extrusions with 10% Carbon Fiber AMS3678/9 Type 9 - Virgin Polytetrafluoro
15、ethylene (PTFE) Moldings with Pigment for AS4716 and AS5857 Backup Rings AMS3678/10 Type 10 - Virgin Polytetrafluoroethylene (PTFE) Moldings or Extrusions with 15% Carbon Fiber 2.1.2 U.S. Government Publications Copies of these documents are available online at http:/quicksearch.dla.mil.MIL-STD-2073
16、-1 Standard Practice for Military Packaging 2.1.3 ASME Publications Available from ASME, Two Park Avenue, New York, NY 10016-5990, Tel: 800-843-2763, www.CustomerCareasme.org.ASME Y 14.5-2009 Dimensioning and Tolerancing 2.2 Related Publications The following publications are provided for informatio
17、n purposes only and are not a required part of this SAE Aerospace Technical Report. 2.2.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org.AS5857 Gland Design,
18、 O-ring and Other Elastomeric Seals, Static Application AS5860 Retainers, (Back-Up Rings), Hydraulic and Pneumatic, Polytetrafluoroethylene Resin, Single Turn, Static Gland AS5861 Retainers, (Back-Up Rings), Hydraulic and Pneumatic, Polytetrafluoroethylene Resin, Solid, Static Gland SAE INTERNATIONA
19、L AS5782A Page 3 of 33 AMS3678/1 Type 1 - Virgin Polytetrafluoroethylene (PTFE) Moldings or Extrusions AMS3678/4 Type 4 - 25% Glass Filled Virgin Polytetrafluoroethylene (PTFE) Moldings or Extrusions 2.2.2 U.S. Government Publications Copies of these documents are available online at http:/quicksear
20、ch.dla.mil.MIL-G-5514 Gland Design; Packing, Hydraulic, General Requirements For (Inactive for New Design) 3. TECHNICAL REQUIREMENTS 3.1 Metric Equivalents Dimensions and properties in inch/pound/Fahrenheit units are primary; dimensions and properties in SI units are shown as the approximate equival
21、ents of the primary units and are presented only for information. 3.2 Materials and Applications 3.2.1 Primary Material Code 09, Virgin PTFE with pigment: Parts made to material code 09 of this standard shall conform to AMS3678/9, Pigmented Virgin PTFE, Molded. x Parts made to material code 09 of th
22、is standard for “R” (Rod) applications shall be blue per AMS3678/9. x Parts made to material code 09 of this standard for “P” (Piston) applications shall be yellow per AMS3678/9. NOTE: Green pigmented material to AMS3678/9 is for use for “R” (Rod) backup rings to AS5860 and AS5861. Brown pigmented m
23、aterial to AMS3678/9 is for use for “P” (Piston) backup rings to AS5860 and AS5861. Details of material specification, material code, color, composition, application and pressures for code 09 material applicable to this document are listed in Table 1. Other data is for alternate materials or for ref
24、erence only. 3.2.2 Alternate Materials As indicated above, the AMS3678/9 is the primary material recommended for these backup rings because of their pigmented colors for identification. The other materials listed in Table 1, except AMS3678/1 and AMS3678/4, can also be ordered by using the part ident
25、ification numbers of this standard. NOTE: When alternate materials are selected it is recommended that adequate performance for the application be verified by operational testing. Table 1 - Materials and applications Table 1 - Materials and Applications Material MaterialCode6 Color Composition Appli
26、cation Max Pressure5psi kPa AMS3678/1 N/A White Virgin PTFE 1 Not to be used N/A AMS3678/2 02 Black 15% Graphite Static & Dynamic 3000 20 684 AMS3678/3 03 Gray 15% Glass, 5% M0S2 Static 4000 27 579 AMS3678/4 N/A White 25% Glass 2 Not to be used N/A AMS3678/5 05 Per Supplier Virgin, Pigmented 3 Stati
27、c & Dynamic 2000 13 790 AMS3678/6 06 Brown 60% Bronze 4 Static 5000 34 474 AMS3678/7 07 Black 25% Carbon/Graphite Static 5000 34 474 AMS3678/8 08 Black 10% Carbon Fiber Static & Dynamic 4000 27 579 AMS3678/9 09 See 3.1.1 Virgin, Pigmented Static & Dynamic 3000 20 684 AMS3678/10 10 Black 15% Carbon F
28、iber Static & Dynamic 5000 34 474 SAE INTERNATIONAL AS5782A Page 4 of 33 NOTES: 1. Material to AMS3678/1 Grade A and Grade B is not to be used because both have lower physical properties and, therefore, lower performance than AMS3678/9. 2. Glass fibers can be abrasive, particularly in dynamic applic
29、ations and against soft surfaces such as aluminum and some grades of titanium and stainless steels. 3. Usually used for manufacturers proprietary pigment colors. 4. Not usually recommended for hydraulic systems as bronze particles can clog filters. 5. Maximum pressures indicated are for guidance pur
30、poses only and for pressures above 3000 psi (20 684 kPa) testing is recommended. 6. Material Designation Codes are derived from the appropriate slash sheets of AMS3678. 3.2.3 Color Identification for Materials Other Than Code 09 Color pigmentation for material to AMS3678/5 is usually proprietary per
31、 manufacturer. There is no color pigmentation applied to materials to AMS3678/1, AMS3678/2, AMS3678/3, AMS3678/4, AMS3678/6, AMS3678/7, AMS3678/8, and AMS3678/10. 3.3 Dimensional Requirements See Tables 2A, 2B, 2C, and 2D for dimensions. Dimensions and Tolerancing per ASME Y 14.5-2009. Figure 1 - Ba
32、ckup ring controlled features SAE INTERNATIONAL AS5782A Page 5 of 33 3.3.1 Part Number The part number consists of the standard number, the piston (P) or rod (R) code, the material code followed by the appropriate three digit dash number taken from Tables 2A, 2B, 2C, and 2D. Example P/N: $6 3 DVK1XP
33、EHU0DWHULDO&RGH3IRU3LVWRQ5IRU5RG6WDQGDUG1XPEHUNOTES: 1. In the above example Part Number, “P” for Piston, Code 09 material, and dash 123 size are all used for example purposes only. 2. Spaces between characters in the above example Part Number are for illustration clarity only and are not used in th
34、e Part Number. 3.3.2 Conformity Requirements Parts shall conform to Figure 1 and the dimensions listed in Tables 2A, 2B, 2C, and 2D. These measurements are to be made at a stabilized temperature of 73 F 2 F (23 C 1 C). NOTES: 1. Refer to A and B dimensions from AS4716. Dimensions are based on nomina
35、l ring “OD” equal to minimum A for piston backup rings and nominal ring “ID” equal to maximum B for rod backup rings. Radial width “W” is based on a net fit in the gland at maximum material condition with all features concentric. 2. In order to minimize expense of gauges by allowing commonality of b
36、ackups used for glands that follow similar design principles as AS4716 (bore sizes and rod sizes generally identical to MIL-G-5514F, e.g., AS5861) the method of measuring piston type backups to this specification is by the outside diameter (see Figure 1) which differs compared to previous practices.
37、 Coincidentally, this also offers better dimensional accuracy and fit through a reduction in tolerance stack-up. 3. Gage sizes identical to AS5860 are as follows: Piston types measured on ID-013 thru -021, -114 thru -134 Piston types measured on OD-022 thru -028, -121 thru -149, -210 thru -247, -325
38、 thru -349, -425 thru -460 Rod types measured on ID-004 thru -028, -104 thru -149, -210 thru -247, -325 thru -349, -425 thru -460 Dash sizes other than those listed above to AS5860 and this standard do not match and require unique inspection gauges. 3.3.3 Surfaces and Edges Surfaces shall be smooth
39、and free from irregularities. Edges shall be clean and sharp. SAE INTERNATIONAL AS5782A Page 6 of 33 Table 2A - Piston (male) applications - Backup ring dimensions in inches PartNo. O.D.0.001 T0.002 W0.001 AS5782P(XX)-004 0.190 0.052 0.056 AS5782P(XX)-005 0.221 0.052 0.052 AS5782P(XX)-006 0.235 0.05
40、2 0.052 AS5782P(XX)-007 0.266 0.052 0.053 AS5782P(XX)-008 0.297 0.052 0.053 AS5782P(XX)-009 0.329 0.052 0.054 AS5782P(XX)-010 0.360 0.054 0.054 AS5782P(XX)-011 0.422 0.054 0.054 AS5782P(XX)-012 0.485 0.054 0.054 AS5782P(XX)-013 0.550 0.054 0.053 AS5782P(XX)-014 0.613 0.054 0.054 AS5782P(XX)-015 0.67
41、5 0.054 0.054 AS5782P(XX)-016 0.738 0.054 0.054 AS5782P(XX)-017 0.800 0.054 0.054 AS5782P(XX)-018 0.863 0.054 0.054 AS5782P(XX)-019 0.925 0.054 0.054 AS5782P(XX)-020 0.991 0.054 0.054 AS5782P(XX)-021 1.053 0.054 0.054 O.D. 0.002 AS5782P(XX)-022 1.116 0.054 0.054 AS5782P(XX)-023 1.178 0.054 0.054 AS5
42、782P(XX)-024 1.241 0.054 0.054 AS5782P(XX)-025 1.303 0.054 0.054 AS5782P(XX)-026 1.366 0.054 0.054 AS5782P(XX)-027 1.428 0.054 0.054 AS5782P(XX)-028 1.491 0.054 0.054 SAE INTERNATIONAL AS5782A Page 7 of 33 Table 2A - Piston (male) applications - Backup ring dimensions in inches (continued) PartNo. O
43、.D.0.001 T0.002 W0.001 AS5782P(XX)-104 0.297 0.056 0.084 AS5782P(XX)-105 0.329 0.056 0.085 AS5782P(XX)-106 0.360 0.056 0.086 AS5782P(XX)-107 0.391 0.056 0.087 AS5782P(XX)-108 0.422 0.056 0.087 AS5782P(XX)-109 0.485 0.056 0.088 AS5782P(XX)-110 0.550 0.056 0.085 AS5782P(XX)-111 0.613 0.056 0.086 AS578
44、2P(XX)-112 0.675 0.056 0.085 AS5782P(XX)-113 0.738 0.056 0.085 AS5782P(XX)-114 0.800 0.056 0.085 AS5782P(XX)-115 0.863 0.056 0.086 AS5782P(XX)-116 0.925 0.056 0.086 AS5782P(XX)-117 0.991 0.056 0.086 AS5782P(XX)-118 1.053 0.056 0.086 AS5782P(XX)-119 1.116 0.056 0.086 AS5782P(XX)-120 1.178 0.056 0.086
45、 O.D. 0.002 AS5782P(XX)-121 1.241 0.056 0.086 AS5782P(XX)-122 1.303 0.056 0.086 AS5782P(XX)-123 1.366 0.056 0.086 AS5782P(XX)-124 1.428 0.056 0.086 AS5782P(XX)-125 1.491 0.056 0.086 AS5782P(XX)-126 1.553 0.056 0.086 AS5782P(XX)-127 1.616 0.056 0.086 AS5782P(XX)-128 1.678 0.056 0.086 AS5782P(XX)-129
46、1.741 0.056 0.086 AS5782P(XX)-130 1.805 0.056 0.086 AS5782P(XX)-131 1.867 0.056 0.086 AS5782P(XX)-132 1.930 0.056 0.086 AS5782P(XX)-133 1.992 0.056 0.086 AS5782P(XX)-134 2.055 0.056 0.086 SAE INTERNATIONAL AS5782A Page 8 of 33 Table 2A - Piston (male) applications - Backup ring dimensions in inches
47、(continued) PartNo. O.D.0.002 T0.002 W0.001 AS5782P(XX)-135 2.118 0.056 0.086 AS5782P(XX)-136 2.180 0.056 0.086 AS5782P(XX)-137 2.243 0.056 0.086 AS5782P(XX)-138 2.305 0.056 0.086 AS5782P(XX)-139 2.368 0.056 0.086 AS5782P(XX)-140 2.430 0.056 0.086 AS5782P(XX)-141 2.493 0.056 0.086 AS5782P(XX)-142 2.
48、555 0.056 0.086 AS5782P(XX)-143 2.618 0.056 0.086 AS5782P(XX)-144 2.680 0.056 0.086 AS5782P(XX)-145 2.743 0.056 0.086 AS5782P(XX)-146 2.805 0.056 0.086 AS5782P(XX)-147 2.868 0.056 0.086 AS5782P(XX)-148 2.930 0.056 0.086 AS5782P(XX)-149 2.993 0.056 0.086 O.D. 0.001 AS5782P(XX)-210 0.991 0.062 0.120 A
49、S5782P(XX)-211 1.053 0.062 0.120 AS5782P(XX)-212 1.116 0.062 0.120 AS5782P(XX)-213 1.178 0.062 0.120 O.D. 0.002 AS5782P(XX)-214 1.241 0.062 0.120 AS5782P(XX)-215 1.303 0.062 0.120 AS5782P(XX)-216 1.366 0.062 0.120 AS5782P(XX)-217 1.428 0.062 0.120 AS5782P(XX)-218 1.491 0.062 0.120 AS5782P(XX)-219 1.553 0.062
