1、 MIL-DTL-52525/2C 12 November 2008 SUPERSEDING MIL-DTL-52525/2B 30 June 1998 DETAIL SPECIFICATION SHEET FITTINGS, HOSE, SCREW-ON TO 37 FLARE FEMALE SWIVEL, 45 BENT TUBE This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring
2、 the product described herein shall consist of this specification sheet and MIL-DTL-52525. FIGURE 1. Fitting, screw-on to 37 flare female swivel, 45 bent tube. AMSC N/A FSC 4730INCH-POUND Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-52525/
3、2C 2 Part or Identifying Number (PIN) Hose ID ref inches (mm) Tube OD inches (mm) Thread size (see note 3) C max inches (mm) F max inches (mm) M52525/2-4-4 .250 (6.35) .250 (6.35) .438-20-UNF 3.11 (78.99) .39 (9.91) M52525/2-4-5 .250 (6.35) .313 (7.95) .500-20-UNF 3.04 (77.22) .42 (10.67) M52525/2-6
4、-6 .275 (6.99) .375 (9.53) .653-18-UNF 3.42 (86.87) .45 (11.43) M52525/2-8-8 .500 (12.70) .500 (12.70) .750-16-UNF 3.95 (100.33) .61 (15.49) M52525/2-8-10 .500 (12.70) .625 (15.88) .875-14-UNF 4.21 (106.93) .69 (17.53) M52525/2-12-1 .750 (19.05) .750 (19.05) 1.063-12-UNC 4.81 (122.17) .84 (21.34) M5
5、2525/2-16-1 1.000 (25.40) 1.000 (25.40) 1.313-12-UNC 5.78 (146.81) .95 (24.13) PIN H Hex size inches (mm) L max inches (mm) M min inches (mm) N inches (mm) +.030 (0.76) -.015 (0.38) P (see note 4) inches (mm) .005 (0.13) M52525/2-4-4 .563 (14.30) .89 (22.61) .300 (7.62) .344 (8.74) .295 (7.49) M5252
6、5/2-4-5 .625 (15.88) 1.00 (25.40) .331 (8.41) .375 (9.53) .355 (9.02) M52525/2-6-6 .688 (17.48) 1.19 (30.23) .333 (8.46) .375 (9.53) .435 (11.05) M52525/2-8-8 .875 (22.23) 1.24 (31.50) .375 (9.53) .422 (10.72) .570 (14.48) M52525/2-8-10 1.000 (25.40) 1.24 (31.50) .461 (11.71) .500 (12.70) .680 (17.2
7、7) M52525/2-12-12 1.250 (31.75) 1.75 (44.45) .469 (11.91) .562 (14.27) .850 (21.59) M52525/2-16-16 1.500 (38.10) 2.05 (52.07) .563 (14.30) .594 (15.09) 1.000 (25.40) PIN Q min Bore dia. inches (mm) M52525/2-4-4 .11 (2.79) M52525/2-4-5 .11 (2.79) M52525/2-6-6 .26 (6.60) M52525/2-8-8 .38 (9.65) M52525
8、/2-8-10 .38 (9.65) M52525/2-12-12 .57 (14.48) M52525/2-16-16 .78 (19.81) NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for information only. 3. Threads shall be in accordance with ASME B1.1 series with graded pitches fine (UNF) and series with constant pitches (UNC), class 2B.
9、4. Dimensions P to be concentric with dimension Q within .015 inch (0.38 mm) full indicator movement. 5. All dimensions not shown shall be in accordance with SAE-J516. 6. These fittings are similar to SAE-J516 type for use with SAE-J517 type 100R2 hose. FIGURE 1. Fitting, screw-on to 37 flare female
10、 swivel, 45 bent tube - Continued. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-52525/2C 3 REQUIREMENTS: Fittings shall be as specified on figure 1 and in tables I, II, and III. The fittings described herein are for use with MIL-DTL-52471/
11、5, SAE-J517, type 100R2 hose, which is high pressure double steel wire braid reinforced and MIL-DTL-52471/2 hose assemblies. If fittings are to be used on an oxygen hose, see MIL-DTL-52525. Materials and finishes shall be in accordance with MIL-DTL-52525 and in table I. All finishes shall be capable
12、 of withstanding 96 hours minimum of salt spray. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-52525/2C 4 TABLE I. Material and finish identification codes. 1/ 2/ PIN code material/plating finish Material Plating finish A Aluminum alloy 606
13、1 or 7075 Anodize in accordance with MIL-A-8625, type II. AN Anodize in accordance with MIL-A-8625, type II and NAVAIR trivalent chromium pretreatment (TCP) in accordance with MIL-DTL-81706, type 2, class A. BN Bare aluminum with NAVAIR TCP in accordance with MIL-DTL-81706, type 2, class A. C Steel
14、Cadmium plating in accordance with SAE-AMS-C-81562, type II, class 3 or SAE-AMS-QQ-P-416, type II, class 2. CN Cadmium plating in accordance with SAE-AMS-C-81562, type II, class 3 or SAE-AMS-QQ-P-416, type II, class 2 and NAVAIR TCP in accordance with MIL-DTL-81706, type 2, class A. YC Chrome-molybd
15、enum steel alloy 4130 Cadmium plating in accordance with SAE-AMS-C-81562, type II, class 3 or SAE-AMS-QQ-P-416, type II, class 2. YN Cadmium plating in accordance with SAE-AMS-C-81562, type II, class 3 or SAE-AMS-QQ-P-416, type II, class 2 and NAVAIR TCP in accordance with MIL-DTL-81706, type 2, cla
16、ss A. F Steel NAVAIR TCP in accordance with MIL-DTL-81706, type 2, class A. FN Chrome-molybdenum steel alloy 4130 G Steel Zinc plating with colorless passivate in accordance with ASTM B633, type V, Fe/Zn 25. YG Chrome-molybdenum steel alloy 4130 H Steel Zinc phosphate finish in accordance MIL-DTL-16
17、232, type Z, class1. 3/ YH Chrome-molybdenum steel alloy 4130 J Steel Zinc plating with chromate conversion in accordance with ASTM B633; type II or III, Fe/Zn 5, or ASTM B695, type II, class 5. YJ Chrome-molybdenum steel alloy 4130 K Nickel-copper alloy UNS N04400 No additional finish. M High-chrom
18、ium nickel alloy UNS N06690 No additional finish. N Steel Zinc aluminum in accordance with ASTM F1136, grade 3, NC. YN Chrome-molybdenum steel alloy 4130 P Steel Zinc plating with colorless passivate in accordance with ASTM B633, type VI, Fe/Zn 5. YP Chrome-molybdenum steel alloy 4130 S Corrosion re
19、sistant steel No additional finish. Passivation in accordance with SAE-AMS2700, type 6 or 7. SN Passivation above and NAVAIR TCP in accordance with MIL-DTL-81706, type 2, class A. T Titanium Anodize in accordance with SAE-AMS2488, type 2. V Steel Zinc-nickel in accordance with SAE-AMS2417, type 1 W
20、Steel Any zinc plating above. YW Chrome-molybdenum steel alloy 4130 Z Steel Any zinc plating above with NAVAIR TCP in accordance with MIL-DTL-81706, type 2, class A. YZ Chrome-molybdenum steel alloy 4130 1/ All materials and finishes shall be in accordance with MIL-DTL-52525. 2/ Embitterment test ne
21、ed not be run. 3/ Zinc phosphate finish is hexavalent chromium free. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-52525/2C 5 Maximum operating pressure shall be as specified in table II. Maximum operating pressures are for low carbon steel
22、 fittings consult manufacturer for values on other materials. TABLE II. Maximum operating pressures of fittings. 1/ 2/ SAE dash size Hose ID inches (mm) psi MPa -4 .250 (6.35) 4500 31 -6 .375 (9.53) 4000 27.5 -8 .500 (12.70) 4000 27.5 -12 .750 (19.05) 3000 21 -16 1.000 (25.40) 2500 17 1/ Dimensions
23、are in inches. 2/ Metric equivalents are given for information only. Over tightening torque shall be as specified in table III. Over tightening torque values are for low carbon steel fittings consult manufacturer for values on other materials. TABLE III. Over-tightening torque for swivel nut. 1/ 2/
24、3/ SAE dash size Hose ID ref inches (mm) Torque Pound-force inches (lb-in) N m -4 .250 (6.35) 135 15 -5 .313 (7.95) 180 20 -6 .375 (9.53) 270 31 -8 .500 (12.70) 450 51 -10 .625 (15.88) 650 73 -12 .750 (19.05) 900 102 -16 1.000 (25.40) 1200 136 1/ Dimensions are in inches. 2/ Metric equivalents are g
25、iven for information only. 3/ Test torques are for low carbon steel fittings. Consult manufacturer for values for other materials. PIN: The PIN consists of the letter “M” the specification sheet number, a dash, a number for hose size, a dash, a number for tube size, and a material finish designator.
26、 M 52525/2 -4 -5 A PIN example: M52525/2-4-5A, describes a 45 connector for a .250 inch hose ID, for a .313 inch tube OD, aluminum with an anodize finish. Size dash number for tube (see figure 1) Size dash number for hose (see figure 1) Specification sheet number M prefix Material/finish designator
27、(see table I) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-52525/2C 6 To the users of this document, it is recommended that the use of carbon steel material with cadmium plating be used only when the other materials and finishes specified
28、in this document cannot meet performance requirements. Color identification. Color identification shall be in accordance with SAE-AS4841. Marking shall include the manufacturers name or trademark, size, and hose identifier R2. Location of marking is optional. Harmonization to SAE-J516 cross referenc
29、e PIN in table IV is for reference only. SAE style fittings may not have the same material/finish as required by MIL-DTL-52525 and legacy with MIL-DTL-52471. TABLE IV. Harmonization to SAE-J516 cross reference PIN. 1/ PIN SAE PIN M52525/2-4-4 SAE J516 4-4 F242254 M52525/2-4-5 SAE J516 5-4 F242254 M5
30、2525/2-6-6 SAE J516 6-6 F242254 M52525/2-8-8 SAE J516 8-8 F242254 M52525/2-8-10 SAE J516 10-8 F242254 M52525/2-12-12 SAE J516 12-12 F242254 M52525/2-16-16 SAE J516 16-16 F242254 1/ Material and finish designators are omitted from PINs, see table I and SAE-J846. Changes from previous issue. Marginal
31、notations are not used in this revision to identify changes with respect to the previous issue, due to the extent of the changes. Referenced documents. In addition to MIL-DTL-52525, this document references the following: MIL-A-8625 MIL-DTL-16232 MIL-DTL-52471 MIL-DTL-52471/2 MIL-DTL-52471/5 MIL-DTL
32、-81706 ASME B1.1 ASTM B633 ASTM B695 ASTM F1136 SAE-AMS-C-81562 SAE-AMS-QQ-P-416 SAE-AMS2417 SAE-AMS2488 SAE-AMS2700 SAE-AS4841 SAE-J516 SAE-J517 SAE-J846 CONCLUDING MATERIAL Custodians: Preparing activity: Army - AT DLA - CC Navy - SH Air Force - 99 (Project 4730-2007-070) DLA - CC Review activitie
33、s: Army - CR4 Navy - AS, CG, MC, SA, YD 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 http:/assist.daps.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
