1、 AMSC N/A FSC 4730 MS27071D 14 March 2013 SUPERSEDING MS27071C 25 September 2003 DETAIL SPECIFICATION SHEET UNION, NIPPLE This specification sheet is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the product described herein shall consi
2、st of this specification sheet and MIL-DTL-27272. FIGURE 1. Union, nipple illustration. INCH-POUND Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS27071D 2 NOTES: 1. Thread gauge must enter thread relief. Thread marks on thread relief are acceptabl
3、e. 2. Threads shall be in accordance with MIL-S-7742. Threads shall be rolled on corrosion-resistant steel only. 3. Unless otherwise specified, break or radius all corners .005, +.005, -.000. All diameters must be concentric within .005 full indicator movement. 4. Dry-film lubricate area Y with lubr
4、ication, see table II. No dry-film lubrication allowed in area Z. Dry-film lubrication allowed in area X, but not required. 5. Surface roughness. Unless otherwise specified, maximum surface roughness shall not exceed 125 in. Ra in accordance with ASME B46.1. 6. Remove all burrs and slivers. Size and
5、 material code A .010 B C .005 D .005 E .005 CRES Al CRES Al CRES Al -4C - .480 - - .250 - .075 - .634 -5C - .495 - - .245 - .085 - .707 -6C - .515 - - - .050 - .779 -8C 1/ .577 - - .265 - .085 - .995 -10C -10D .608 - - .295 .295 .100 .100 1.140 -12C -12D .715 .595 .010 .355 .338 .083 1.284 -16C -16
6、D .791 .640 .385 .365 .110 .090 1.717 -20C -20D .835 .665 .395 .395 .085 .085 2.078 -24C -24D .995 .765 .005 .495 .495 .100 .100 2.439 See notes at end of table. FIGURE 1. Union, nipple illustration - Continued. Provided by IHSNot for ResaleNo reproduction or networking permitted without license fro
7、m IHS-,-,-Size and material code F .02 G H .02 J K .5 L 2/+.005 M .003 N .5 P .005 CRES Al -.000 -4C - .50 .500 +.000 -.006 .53 .031 .005 30 .438 .086 - .078 -5C - .56 .562 +.000 .59 .491 .109 - .086 -6C - .62 .625 -.007 .66 .015 max .553 - -8C 1/ .81 .750 .84 .031 .005 .678 .110 - .101 -10C -10D .9
8、4 .875 +.000 .97 .035 .790 .116 - -12C -12D 1.06 1.000 -.008 1.09 20 .915 .135 15 .131 -16C -16D 1.44 1.375 +.000 1.47 .038 1.282 .150 10 -20C -20D 1.75 1.688 -.009 1.78 1.594 .160 15 -24C -24D 2.06 1.938 +.000 -.010 2.09 .043 1.833 Size and material code Q .02 S .005 T 3/thread Pitch diameter threa
9、d U +.005 V +.005 W AA 5 CRES Al -.000 -.000 -4C - .56 .185 .5000 - 28 UNEF-3A .4768/.4740 .443 .379 .074 +.004 -.000 45 -5C - .62 .203 .5625 - 24 UNEF -3A .5354/.5325 .487 .422 .084 -6C - .69 .240 .6250 - 24 UNEF -3A .5979/.5949 .562 .497 30 -8C 1/ .88 .301 .7500 - 24 UNS -3A .7229/.7198 .698 .622
10、.098 45 -10C -10D 1.00 .346 .8750 - 20 UNEF -3A .8425/.8392 .788 .712 -12C -12D 1.12 .406 1.0000 - 20 UNEF -3A .9675/.9641 .938 .832 .128 +.005 -.000 -16C -16D 1.50 .571 1.3750 - 18 UNEF - 3A 1.3389/1.3353 1.268 1.156 -20C -20D 1.81 .697 1.6875 - 18 UNEF - 3A 1.6514/1.6476 1.519 1.411 -24C -24D 2.12
11、 .814 1.9375 - 16 UN - 3A 1.8969/1.8929 1.754 1.641 30 1/ MS27071-8D is canceled. Use MS27071-8C for new design. 2/ Thread gauge must enter thread relief. Thread marks on thread relief are acceptable. 3/ Threads shall be in accordance with MIL-S-7742. Threads shall be rolled on corrosion-resistant s
12、teel only.MS27071DFIGURE1. Union,nippleillustration-Continued.3Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS27071D 4 REQUIREMENTS Dimensions and configuration see figure 1 Union nipple illustration see figure 1 and table I. Intended use. This pa
13、rt is a component of MS27062 through MS27068, MS27387 through MS27391, MS27394 and MS27395. This is a design standard for manufacturing purposes. The item is only procured as an integral part of adapter assemblies. Materials. Material and material codes see table I. TABLE I. Materials and material c
14、odes. Material code Material C Corrosion-resistant steel (CRES), class 304, condition A, in accordance with SAE-AMS-QQ-S-763 or 304 in accordance with SAE-AMS5639. D Aluminum alloy, 2024 in accordance with SAE-AMS-QQ-A-225/6, temper T6 or T851. Finish. Corrosion-resistant steel, passivate in accorda
15、nce with SAE AMS2700, method 1, type 6 or 7. Dry-film lubricant area Y, see figure 1 and table II. Aluminum alloy. Anodize in accordance with MIL-A-8625, type II. For union used on flared and flanged nipple assemblies, dye blue. Dye yellow on flareless assemblies. NOTE: Avoid using graphite dry film
16、 lubes with aluminum unions because in a wet environment, graphite becomes corrosive to the aluminum. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS27071D 5 TABLE II. Dry film designator. Dry film PIN code SAE class or type designator Dry film ch
17、aracteristics Blank Any SAE class or type below Any temp range SAE-AS1701 SAE-AS1701 class SAE-AS1701 temperature ranges F (C) 4 4 -65 to +1400F (-54 to 760C) 5 5 -65 to +850F (-54 to 454C) 6 6 -375 to +850F (-226 to 454C) SAE-AS5272 SAE-AS5272 type SAE-AS5272 temperature ranges. F (C) 7 Type I -90
18、to 400F (-68 to 204C) endurance life of 250 min minimum 8 Type II -90 to 400F (-68 to 204C) endurance life of 450 min minimum 9 Type III Color 1 - Natural product color -90 to 400F (-68 to 204C) low Volatile organic compound with an endurance life of 450 min minimum 10 Type III Color 2 - Black color
19、 -90 to 400F (-68 to 204C) low Volatile organic compound with an endurance life of 450 min minimum Dry film designator MIL classification Dry film characteristics MIL-PRF-46010 1/ - MIL-PRF-46010 temperature ranges. F (C) 11 1 Color 1 natural product color, -90 to 400F (-68 to 204C) solvent resistin
20、g 12 2 Color 2 - Black color -90 to 400F (-68 to 204C) solvent resisting 1/ Not for aerospace usage. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS27071D 6 PIN: The PIN consists of prefix “MS”, the specification sheet number, dash number for unio
21、n size, letter for material, and a blank or number for dry film lubricant. Unassigned PINs shall not be used. MS 27071 -8 C 4 PIN examples: MS27071-8C indicates a union size 8, CRES with dry film class designator “blank”. MS27071-8C4 indicates a union size 8, CRES with dry film class designator 4. O
22、rder of precedence. Unless otherwise noted herein or in the contract, in the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a speci
23、fic exemption has been obtained. Referenced documents shall be of the issue in effect on date of invitations for bid. Changes from previous issue. Marginal notations are not used in this revision to identify changes with respect to the previous issue, due to the extent of the changes. Referenced doc
24、uments. In addition to MIL-DTL-27272, this document references the following: MIL-A-8625 MIL-PRF-46010 MIL-S-7742 MS27062 MS27063 MS27064 MS27065 MS27066 MS27067 MS27068 MS27387 MS27388 MS27389 MS27390 MS27391 MS27394 MS27395 ASME B46.1 SAE-AMS-QQ-A-225/6 SAE-AMS-QQ-S-763 SAE-AMS2700 SAE-AMS5639 SAE
25、-AS1701 SAE-AS5272 Specification sheet number MS prefix Material code letter (see table I) Size code number (see figure 1) Dry film designator (see table II) CRES only Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS27071D 7 CONCLUDING MATERIAL Cus
26、todians: Preparing activity: Army - AV DLA - CC Navy - AS Air Force - 99 (Project 4730-2013-024) DLA - CC Review activities: Army - AR, AT, MI Navy - MC, SA, SH Air Force - 71 NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at https:/assist.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
