1、NASM 22529-2-1999 GROMMET, CUSHION CY)MPOSITE, EDGING_ADOPTION NOTICE NASM22529/2 , GROMMET, CUSHION, COMPOSITION, EDGING, was adopted on 23 MARCH 1999 for use by the Department of Defense (DoD). Proposed changes by DoD Activities must be submitted to the DoD Adopting Activity: Defense Industrial Su
2、pply Center, ATTN: DISC-AESD, 700 Robbins Avenue, Philadelphia, PA 19111-5096. DoD Activities may obtain copies of this standard from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, FA 19111-5094. The private sector and other Government agencies may purchase c
3、opies from the AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA, INC., 1250 EYE STREET, N. W., WASHINGTON, DC 20005-3924. Custodians : Amy - Navy - AS Air Force - 99 DIA- IS Adopting activity: DIA-IS . (Project 5325-0455-01) AMSC N/A FSC 5325 DISTRIBUTION STATEMENT A. Approved for public release; distrib
4、ution is unlimited. COPYRIGHT Aerospace Industries Association of America, Inc. (AIA NAS)Licensed by Information Handling Services. .I. STD.AIA/NAS NASfl22527/2-ENGL 1999 0338743 050b32b 7T2 NATIONAL AEROSPACE STANDARD Q COPYRIGHT 1999 AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA, INC. ALL RIGHTS RES
5、ERVED NASM2252912 SPECIFICATION SHEET GROMMET, CUSHION CY)MPOSITE, EDGING The requirements for acquiring the product desmied herein shall consist of this specification sheet and the issue of NASM22529. REQUIREMENTS: 1. Materials: 1.1 Substrate: -1 thru -7, %hard 300 series stainless steel per AMs 55
6、17, AMs 5903, Ah4S 5907 or AMs 5310; -8, % hard 300 series stainless steel per AMs 5518, AMs 5904 or AMs 591 1. 1.2 Coating: Thennosetting epoxy, color: lime green per FED-STD 595, Color Number 14553. 1.2.1 Elastomer Cushion: Shore A, 46 Durometer. Flammability per MIL-STD-202, Method 11 1 A, color:
7、 Grey 1.2.2 Elongation: No cracks shall be viaMe at 15% elongation. 1.2.3 Thermal endurance: 85OC continuous (2,000 Ws) per IEEE 57. 2. The Composite Grommet meets all the requirements of NASM22529 with the following exception: 4.2.9 Dielectric withstanding voltage, 1200 Volts, 60 Hz. This grommet i
8、s primarily intended to provide chafing protection. THE INITIAL RELEASE OF THIS DOCUMENT SUPERSEDES MJLDTG22529/2, REVISION B. PART NUMBERS REMAIN M22529/2. LIST OF CURRENT SHEETS 1 of4 FSC 5325 APPROVAL DATE FEBRUARY 1999 REVISION USE OF OR RELIANCE UPON THIS DOCUMENT OR ANY NATIONAL AEROSPACE STAN
9、DARD IS ENTIRELY VOLUNTARY. AIA DOES NOT QUALIFY SUPPLIERS OR CERTIFY CONFORMANCE OF ITEMS PRODUCED UNDER NATIONAL AEROSPACE STANDARDS. AIA MAKES NO REPRESENTATION OR CLAIM RESPECTING (1) THE SUITABILITY OF ITEMS FOR ANY PARTICULAR APPLICATION, OR (2) THE EXISTENCE OF OR APPLICABILITY THERETO OF PAT
10、ENT OR TRADEMARK RIGHTS COPYRIGHT Aerospace Industries Association of America, Inc. (AIA NAS)Licensed by Information Handling ServicesNATIONAL AEROSPACE STANDARD Q COPYRIGHT 1999 AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA MC. ALL RIGHTS RESERVED NASM2252912 3. Examples of Part Number: 3.1 Reek M225
11、29/2 -4 R -25 (BT4-0025-ERO602) M2252912 -6 R -100 (BT6-0100-ERO602) Length in feet Length in fa Sheet thickness Sheet thickness .070”-.093” .105”-.134“ 3.2 Cut lengths: Cut Lengths are available in increments of. 15”. EXAMPLE: Calculated Length: 4.10” dia. Hole x R: = 12.88”/.15 = 85.87 castles, cu
12、t shorter to the nearest whole castle. M22529/2 -1 C -85 (BT1-0085-ECO602) Number of Castles Factory Precut Length Sheet Thikne .O25 - .O36 Notes: 1 Tolerances: .XX = f.02; .XXX = f.010 2 Within a given sheet thickness range and spring characteristicof the grommet, end user should determine the grom
13、met size by trial. 3 In applications where a sacrificial surface is desirable the cushion grommet may be used for edge dressing, odd-shaped holes, and circular holes to provide chafing protection. 4 Installation: 4.1 To assure the absence of deformation of adjacent gripping fingers (Castles) proxima
14、te to the cut-off, using the MFE-100 shears, support the grommet on both sides of the cut and cut at an angle of approximately 45 per Fig 2. 4.2 The maximum allowable end gap for odd-shaped and circular holes after grommet edging is installed flush against the hole periphery is per Fig 2. 4.3 Instal
15、lation instructions are to be included with each package. 4.4 When installing grommets, the gap (joint) shall be ideally located at the top of the cutout hole. Avoid locating joints in the lower half of the cutout hole. 5. U.S. Patent Nos 4,769,966 and 5,343,669 expire 20 April 2007 and 6 July 2012
16、respectively. Other U.S. and foreign patents pending. The Government does not have a royalty-free license. 2 APPROVAL DATE FEBRUARY 1999 REVISION USE OF OR RELIANCE UPON THIS DOCUMENT OR ANY NATIONAL AEROSPACE STANDARD IS ENTIRELY VOLUNTARY. AIA DOES NOT QUALIFY SUPPLIERS OR CERTIFY CONFORMANCE OF I
17、TEMS PRODUCED UNDER NATIONAL AEROSPACE STANDARDS. AIA MAKES NO REPRESENTATION OR CLAIM RESPECTING (1) THE SUITABILITY OF ITEMS FOR ANY .PARTICULAR APPLICATION, OR (2) THE EXISTENCE OF OR APPLICABILITY THERETO OF PATENT OR TRADEMARK RIGHTS COPYRIGHT Aerospace Industries Association of America, Inc. (
18、AIA NAS)Licensed by Information Handling ServicesSTD.AIA/NAS NASM22527/2-ENGL 1777 0338743 O5Ob328 575 NATIONAL AEROSPACE STANDARD 0 COPYRIGHT 1999 AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA, INC. ALL RIGHTS RESERVED NASM2252912 6 The MS part number, singledigit dash variation, and manufacturers id
19、entification to be printed and repeated on the surface of the grommet at least every 1 O. 6 in. per Fig 1. 1 i- 150 TYP /rCASTLES 1 rA 1 t .300 MAX L MC FART NIJMBER AND MANUFACTURERS IDENTIFICATION (SEE NOTE 8) FIG. 1 4 PB FIG. 2 SHEARS. FULL BYPASS MF- 1 O0 FIG. 3 3 APPROVAL DATE FEBRUARY 1999 REV
20、ISION USE OF OR RELIANCE UPON THIS DOCUMENT OR ANY NATIONAL AEROSPACE STANDARD IS ENTIRELY VOLUNTARY. AIA DOES NOT QUALIFY SUPPLIERS OR CERTIFY CONFORMANCE OF ITEMS PRODUCED UNDER NATIONAL AEROSPACE STANDARDS. AIA MAKES NO REPRESENTATION OR CLAIM RESPECTMG (1) THE SUITABILITY OF ITEMS FOR ANY PARTIC
21、ULAR APPLICATION, OR (2) THE EXISTENCE OF OR APPLICABILITY THERETO OF PATENT OR TRADEMARK RIGHTS COPYRIGHT Aerospace Industries Association of America, Inc. (AIA NAS)Licensed by Information Handling ServicesNATIONAL. AEROSPACE STANDARD O COPYRIGHT 1999 AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA, MC
22、. ALL RIGHTS RESERVED NASh42252912 MS Part Variation Number Dash -IR-25 -lR-100 -2R-25 -2R-100 -3R-25 -3R-100 -4R-25 -4R-100 M2252912 -5R-25 -5R- 1 O0 -6R-25 -6R- 1 O0 -7R-100 -8R-25 MFE-100 Part nl Sheet Thickness A .O25 .O36 .O36 .O63 .O59 .O74 .O70 .O93 .o90 .111 .lo5 .134 ,178 .198 .240 .260 Tab
23、le 1 MS ber Br Cr0 Unit Length L 25 Ft. 100 Ft. 25 Ft. 100 Ft. 25 Ft. 100 Ft. 25 Ft. 100 Ft 25 Ft 100 Ft 25 Ft. 100 Ft. 25 Ft. 100 Ft. 25 Ft. 100 Ft 12.75 In. - refen - B .20 .24 - .32 - .38 - Shears full by-pass -L ce Device Technologies, INC. Marlborough, MA 01752 Cage Code O-HESO Part Number BT1-
24、0025 BT1-0100 BT2-0025 BT2-0100 BT3-0025 BT3-0100 BT4-0025 BT4-O100 BT5-0025 BTS-0100 BT6-0025 BT6-0100 BT7-0025 BT7-0100 BT8-0025 -ER0602 BTS-O100 I BTn-0085 I -ECO602 #830 1 Table 2 Circular hole grommet edging cut lengths Note: cut length is a multiple of. 15 inches (Fig 1) Nominal Cut Length Hol
25、e Number Diameter 51 7.65 2.500 46 6.90 2.250 40 6.00 2.000 Castles Length Refmnce of L 2.750 8.40 56 3.000 9.15 61 3.250 10.05 103 15.45 5.000 98 14.70 4.750 93 13.95 4.500 88 13.20 4.250 82 12.30 4.000 77 11.55 3.750 72 10.80 3.500 67 5.250 5.500 1 o9 16.35 124 18.60 6.000 119 17.85 5.750 114 17.1
26、0 4 APPROVAL DATE FEBRUARY 1999 REVISION USE OF OR RELIANCE UPON THIS DOCUMENT OR ANY NATIONAL AEROSPACE STANDARD IS ENTIRELY VOLUNTARY. AIA DOES NOT QUALIFY SUPPLIERS OR CERTIFY CONFORMANCE OF ITEMS PRODUCED UNDER NATIONAL AEROSPACE STANDARDS. AIA MAKES NO REPRESENTATION OR CLAIM RESPECTING (1) THE
27、 SUITABILITY OF ITEMS FOR ANY PARTICULAR APPLICATION, OR (2) THE EXISTENCE OF OR APPLICABILITY THERETO OF PATENT OR TRADEW RIGHTS COPYRIGHT Aerospace Industries Association of America, Inc. (AIA NAS)Licensed by Information Handling Services主营业务范围：ASTM、NAS、NASM、MIL、ISOOOO、EN、DIN等技术标准翻译；技术资料翻译。业务QQQQQQQQ：2298175560专业诚信质量不满意，可不付款专注于技术翻译
