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 theref
2、rom, 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 2014 SAE International All rights reserved. No part of this pub
3、lication 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: +1 724-776-4970
4、(outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/AS5887AEROSPACESTANDARDAS5887Issued 2014-02 Insert, Screw Thread, Self-Locking, UNS
5、S66286, Locked In, Key Locked Procurement Specification For FSC 5340 RATIONALETo produce procurement specification for key locked inserts. 1. SCOPE 1.1 Type This procurement specification covers inserts made from A286 alloy (UNS S66286) which have self-locking internal threads and integrated locking
6、 keys to positively secure the insert against rotation when properly installed in threaded holes.1.2 Application Inserts covered by this specification are intended as general purpose fasteners. 1.3 Safety - Hazardous Materials While the materials, methods, applications, and processes described or re
7、ferenced in this specification may involve the use of hazardous materials, this specification does not address the hazards which may be involved in such use. It is the sole responsibility of the user to ensure familiarity with the safe and proper use of any hazardous materials and to take necessary
8、precautionary measures to ensure the health and safety of all personnel involved. 2. REFERENCES 2.1 Applicable Documents The following publications form a part of this document to the extent specified herein. The latest issue of SAE publications shall apply. The applicable issue of other publication
9、s 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 precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exempt
10、ion has been obtained. SAE INTERNATIONAL AS5887 Page 2 of 23 2.1.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org.AMS2411 Plating, Silver for High Temperature A
11、pplications AMS2700 Passivation of Corrosion Resistant Steels AMS2759/3 Heat Treatment Precipitation-Hardening Corrosion-Resistant and Maraging Steel Parts AMS5731 Steel, Corrosion and Heat-Resistant, Bars, Wire, Forgings, Tubing, and Rings 15Cr - 25.5Ni - 1.2Mo - 2.1Ti - 0.006B - 0.30V Consumable E
12、lectrode Melted, 1800 F (982 C) Solution Heat TreatedAMS5732 Steel, Corrosion and Heat-Resistant, Bars, Wire, Forgings, Tubing, and Rings 15Cr - 25.5Ni - 1.2Mo - 2.1Ti - 0.006B - 0.30V Consumable Electrode Melted 1800 F (982 C) Solution and Precipitation Heat TreatedAMS5734 Steel, Corrosion and Heat
13、-Resistant, Bars, Wire, Forgings, and Tubing 15Cr - 25.5Ni - 1.2Mo - 2.1Ti - 0.006B - 0.30V Consumable Electrode Melted, 1650 F (899 C) Solution Heat Treated AMS5737 Steel, Corrosion and Heat-Resistant, Bars, Wire, Forgings, and Tubing 15Cr - 25.5Ni - 1.2Mo - 2.1Ti - 0.006B - 0.30V Consumable Electr
14、ode Melted 1650 F (899 C) Solution and Precipitation Heat TreatedAMS-QQ-A-225/6 Aluminum Alloy, 2024, Bar, Rod, and Wire; Rolled, Drawn, or Cold Finished AMS-QQ-A-225/8 Aluminum Alloy 6061, Bar, Rod, Wire, and Special Shapes; Rolled, Drawn, or Cold Finished AMS-QQ-A-250/4 Aluminum Alloy 2024, Plate
15、and Sheet AMS-QQ-A-250/11 Aluminum Alloy 6061, Plate and Sheet AS1310 Faster Torque for Threaded Applications, Definitions Of AS3651 Insert, Screw Thread, Short, Self-Locking, Key Locked, Heavy Duty, Oversize Self-Broaching Keys, UNS S66286 AS3652 Insert, Screw Thread, Short, Self-Locking, Key Locke
16、d, Standard Duty, Oversize Self-Broaching Keys, UNS S66286 AS3653 Insert, Screw Thread, Short, Self-Locking, Key Locked, Heavy Duty, Oversize Self-Broaching Keys, UNS S66286 AS3654 Insert, Screw Thread, Self-Locking, Key Locked, Heavy Duty, Oversize Self-Broaching Keys, UNS S66286AS4724 Studs and In
17、serts, Locked In, Self-Broaching Keys - Hole Dimensions and Installation Requirements AS8879 Screw Threads - UNJ Profile, Inch Controlled Radius Root with Increased Minor Diameter AS9133 Qualification Procedure for Aerospace Standard Parts SAE INTERNATIONAL AS5887 Page 3 of 23 2.1.2 U.S. Government
18、Publications Available from DLA Document Services, Building 4/D, 700 Robbins Avenue, Philadelphia, PA 19111-5094, Tel: 215-697-6396, http:/quicksearch.dla.mil/.FED-STD-H28/20 Screw-Thread Standards for Federal Services, Section 20, Inspection Methods for Acceptability of UN, UNR, UNJ, M and MJ Screw
19、-Threads MIL-HDBK-57 Listing of Fastener Manufacturers Identification Symbols 2.1.3 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org.ASTM A342 Test Methods for Permeability of Feebly Magnetic
20、Materials ASTM D3951 Commercial Packaging ASTM E1417 Liquid Penetrant Examination 2.1.4 ANSI Publications Available from American National Standards Institute, 25 West 43rd Street, 4th Floor, New York, NY 10036-8002, Tel: 212-642-4900, www.ansi.org.ASME B46.1 Surface Texture (Surface Roughness, Wavi
21、ness and Lay) 2.1.5 NAS Publications Available from Aerospace Industries Association, 1000 Wilson Boulevard, Suite 1700, Arlington, VA 22209-3928, Tel: 703-358-1000, www.aia-aerospace.org.NASM 1312-6 Fastener Test Methods, Method 6, Hardness NASM 1312-13 Fastener Test Methods, Method 13, Double Shea
22、r 2.1.6 PRI Publications Available from Performance Review Institute, 161 Thorn Hill Road, Warrendale, PA 15086-7527, Tel: 724-772-1616, www.pri-network.org.PD2001 Qualified Product Management Council Procedures for Qualified Products Group 2.2 Definitions Refer to AS1310 for definitions related to
23、fastener torque. DEFECTIVE: A unit of product which contains one or more defects. INSPECTION LOT: Shall consist of inserts from a single production lot of the same part number. PRODUCTION LOT: Shall consist of finished inserts fabricated by the same process from a single heat of alloy, heat treated
24、at the same time to the same condition, produced as one continuous run and submitted for vendors inspection at the same time. SAE INTERNATIONAL AS5887 Page 4 of 23 2.3 Unit Symbols % - percent (1% = 1/100) lbf - pound-force (in tables) lbfin - pound-force per inch (in tables) ksi - kips (1000 pounds
25、) per square inch HRC - hardness, Rockwell C scale 3. TECHNICAL REQUIREMENTS 3.1 The inserts supplied in accordance with this document shall be products which are approved and listed on the applicable Qualified Parts List (QPL). No change in product design, raw material, basic methods of manufacturi
26、ng or plant site shall be made without notification and prior approval from the Performance Review institute (PRI). Requalification or testing may be required. Parts covered by this document are listed in Tables 3 and 4. 3.1.1 Manufacturer Qualification A manufacturer producing a product in conforma
27、nce to this procurement specification shall be in accordance with AS9133 and shall be listed as an approved manufacturer in the applicable PRI qualified parts list. 3.1.2 Product Qualification All products shall conform to the requirements of this specification and shall be approved in accordance wi
28、th the requirements of PD2001, for listing in PRI Qualified Products Lists (QPL) PRI-QPL-AS3651, PRI-QPL-AS3652, PRI-QPL-AS3653, or PRI-QPL-AS3654. 3.2 Material Shall be a corrosion and heat resistant steel, AMS5731, AMS5732, AMS5734, or AMS5737 as specified on the part drawing.3.3 Design Finished (
29、completely manufactured) parts shall conform to the following requirements: 3.3.1 Dimensions The dimensions of the finished parts, after all processing including surface treatment, shall conform to the part drawing. Dimensions shall apply after silver plating. 3.3.2 Surface Texture Surface texture o
30、f finished parts shall conform to the requirements as specified on the part drawing, determined in accordance with ASME B46.1. SAE INTERNATIONAL AS5887 Page 5 of 23 3.3.3 Threads 3.3.3.1 Internal Threads Screw thread UNJF profile and dimensions shall be in accordance with AS8879, unless otherwise sp
31、ecified on the part drawing.3.3.3.2 External Threads Screw thread UNJ profile and dimensions shall be in accordance with AS8879, unless otherwise specified on the part drawing. Minor diameters shall be as specified on the part drawing. Assembled inserts (after key installation) shall be checked in a
32、 tapped hole prepared in accordance with AS4724. 3.3.3.3 Lead Threads External lead threads shall not exceed two pitches, including chamfer. 3.3.3.4 Thread Forming Threads may be produced either by machining, grinding, or fully formed by a single rolling process. 3.3.3.5 Self-Locking Feature Threads
33、 in the area of the self-locking feature may be displaced or deformed radially in a manner that is in conformance with the part drawing. A bolt or screw must enter a minimum of 3/4 of a turn before engagement of the locking feature. The insert shall provide locking torque within the limits of Table
34、1. 3.4 Heat Treatment Shall conform to the technical requirements and other provisions specified in AMS2759/3 for A286, 1650 F solution treatment and 1325 F aging treatment. 3.4.1 Solution Heat Treatment Inserts, unless machined from solution heat treated stock or AMS5737 steel, shall be solution he
35、at treated as in 3.4. 3.4.2 Aging Treatment Solution heat treated inserts shall be heat treated by aging as in 3.4. 3.5 Surface Treatment 3.5.1 Inserts, less the keys, shall be passivated in accordance with AMS2700 method 1 or 2. The key wire material shall be passivated in accordance with AMS2700,
36、method 1 or 2 prior to assembly in the insert. 3.5.2 Following passivation the inserts shall be silver plated, on internal threads only, in accordance with AMS2411. The locking keys shall not be plated. 3.6 Runout The internal thread pitch diameter shall have a circular runout with the external pitc
37、h diameter within 0.006 inch Full Indicator Movement FIM. 3.7 Source Identification Mark The insert shall be marked on the key tang or insert body. The source identification insignia for a manufacturer shall be in accordance with MIL-HDBK-57. The source identification mark shall be legible and perma
38、nent. SAE INTERNATIONAL AS5887 Page 6 of 23 3.8 Magnetic Permeability Inserts shall have a magnetic permeability of 2.0 maximum (Air = 1.0) for a field of H = 200 oersteds, when tested in conformance with ASTM A342. 3.9 Mechanical Properties 3.9.1 Tensile Strength Parts shall withstand a load not lo
39、wer than that specified in Table 2 with or without the locking keys installed. Inserts shallbe installed in test blocks (Figure 2) specified in 4.5.1, and tested with test bolts as specified in 4.5.3.1. The test bolt shallbe assembled into the insert and shall be of sufficient length to extend throu
40、gh the insert a minimum of two (2) pitches. The test shall be conducted in fixtures shown in Figure 1. The minimum load as specified in Table 2, as applicable, shall then be applied to the assembly without failure occurring. In the event of bolt failure below the applicable proof load, the test shal
41、l be repeated until the applicable rating of the insert is exceeded. The rate of loading shall not exceed 100 ksi perminute based on the shank area of the bolt. 3.9.2 Resistance to Pull-out (Qualification only) Tables 3A, 3B, 4A, and 4B contain tabulated minimum shear engagement areas and the associ
42、ated minimum pullout loads as a function of internal thread size for each of the AS3651, AS3652, AS3653, and AS3654 inserts when installed in materials possessing a shear strength of 27 ksi and 68 ksi. The data contained in these tables is provided as initial qualification information. To determine
43、the pull-out strength of the inserts in materials other than that noted, use Equations 4 and 5 per notes below Table 4B. 3.9.3 Rotational Resistance (Qualification only) Parts shall withstand a torque load not lower than that specified in Table 5. Inserts shall be installed in test blocks (Figure2)
44、as specified in 4.5.1, and tested with test bolts as specified in 4.5.3.1. The test shall be conducted as specified in Figure 3. The rotational force is to be applied with a torque wrench and the torque listed in Table 5, as applicable, shall be reached with no axial load exerted on the test block.
45、Failure of the insert to remain in the test block shall be cause for rejection.3.9.4 Self-Locking Torque Test (15 Cycles, Loaded) as received a. Insert shall be installed into test blocks (Figure 2) specified in 4.5.1, and tested with test bolts as specified in 4.5.3.2.b. The bolt shall be of suffic
46、ient length to extend beyond the locking feature a minimum of 2 pitches. c. The self-locking torque shall be measured and recorded and shall not be less than the values specified in Table 6, column 1 (cycles 1 to 15) or greater than the values specified in Table 6, column 2 (cycles 2 to 15). d. The
47、breakaway torque shall be measured and recorded for each cycle on removal of the bolt and shall not be less than the values specified in Table 6, column 1. 3.9.5 Self-Locking Torque (25 Cycles, Loaded, 1025 F) (Qualification only) a. Insert shall be installed into test blocks (Figure 2) specified in
48、 4.5.1, and tested with test bolts as specified in 4.5.3.2.b. The self-locking torque shall be measured and recorded and shall not be less than values specified in Table 6, column 1 nor exceed values in column 3. c. Bolt shall be seated on spacer located on top of the test block and tightened to the
49、 seating torque specified in Table 6, column 4. d. Heat the assembly in furnace at 1025 F 10 F, and hold at this temperature for 6 hours 15 minutes. e. Remove the assembly from furnace and cool to ambient temperature. SAE INTERNATIONAL AS5887 Page 7 of 23 f. Release load by unscrewing 1/2 turn of bolt. g. Then continue to unscrew to measure and record the breakaway torque, which shall not be less than value speci
