1、 MIL-DTL-52525/6C SUPERSEDING 12 November 2008 MIL-DTL-52525/6B 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, 45 bent tube. AMSC N/A FSC 4730 INCH-POUND Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-52525/6C 2 Part or
3、Identifying Number (PIN) Hose ID ref inches (mm) Tube OD inches (mm) Thread size (see note 3) C max inches (mm) M52525/6-4-4 .250 (6.35) .250 (6.35) .438-20-UNF 2.92 (74.17) M52525/6-4-5 .250 (6.35) .313 (7.95) .500-20-UNF 2.97 (75.44) M52525/6-6-6 .375 (9.53) .375 (9.53) .563-18-UNF 3.33 (84.58) M5
4、2525/6-8-8 .500 (12.70) .500 (12.70) .750-16-UNF 3.85 (97.79) M52525/6-8-10 .500 (12.70) .625 (15.88) .875-14-UNF 4.12 (104.65) M52525/6-12-12 .750 (19.05) .750 (19.05) 1.062-12-UNC 4.53 (115.06) M52525/6-16-16 1.000 (25.40) 1.000 (25.40) 1.313-12-UNC 5.78 (146.81) PIN (see note 3) F max inches (mm)
5、 H hex size inches (mm) L max inches (mm) M min inches (mm) M52525/6-4-4 .39 (9.9) .563 (14.30) .87 (22.10) .300 (7.62) M52525/6-4-5 .42 (10.7) .625 (15.88) .87 (22.10) .331 (8.41) M52525/6-6-6 .45 (11.4) .688 (17.48) 1.09 (27.69) .333 (8.46) M52525/6-8-8 .61 (15.5) .875 (22.23) 1.20 (30.48) .375 (9
6、.53) M52525/6-8-10 .69 (17.5) 1.000 (25.40) 1.20 (30.48) .461 (11.71) M52525/6-12-12 .84 (21.3) 1.250 (31.75) 1.59 (40.39) .469 (11.91) M52525/6-16-16 .95 (24.1) 1.500 (38.10) 2.02 (51.31) .563 (14.30) PIN N inches (mm) +.030 (0.76) -.015 (0.38) P (see note 4) inches (mm) .005 (0.13) Q min Bore diam
7、eter inches (mm) M52525/6-4-4 .344 (8.74) .295 (7.49) .11 (2.79) M52525/6-4-5 .375 (9.53) .355 (9.02) .11 (2.79) M52525/6-6-6 .375 (9.53) .435 (11.05) .26 (6.60) M52525/6-8-8 .422 (10.72) .570 (14.48) .38 (9.65) M52525/6-8-10 .500 (12.70) .680 (17.27) .38 (9.65) M52525/6-12-12 .562 (14.27) .850 (21.
8、59) .57 (14.48) M52525/6-16-16 .594 (15.09) 1.000 (25.40) .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. 4.
9、Dimension P to be concentric with dimension Q within .015 Inches (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 100R1 hose. FIGURE 1. Fitting, screw-on to 37 flare, 45 ben
10、t tube - Continued. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-52525/6C 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 hose in accordance with MIL-D
11、TL-52471/4, SAE-J517, type 100R1 steel wire reinforced, rubber covered hydraulic hose and hose assemblies in accordance with MIL-DTL-52471/1. 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
12、 shall be capable of withstanding 96 hours minimum of salt spray. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-52525/6C 4 TABLE I. Material and finish identification codesPIN code material/plating finish . 1/ 2/ Material Plating finish A A
13、luminum alloy 6061 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,
14、class A. C Steel 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.
15、 YC Chrome-molybdenum 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-8
16、1706, type 2, class 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 acco
17、rdance MIL-DTL-16232, 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 fin
18、ish. M High-chromium 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 41
19、30 S Corrosion resistant 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-A
20、MS2417, type 1. W 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/ Em
21、bitterment test need 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-52525/6C 5 Maximum operating pressure shall be as specified in table II. Maximum operating pressures are fo
22、r low carbon steel fittings consult manufacturer for values on other materials. TABLE II. Maximum operating pressures of fittingsSAE dash size . 1/ 2/ Hose ID inches (mm) psi MPa -4 .250 (6.35) 4500 31 -5 .313 (7.95) 4000 27.5 -6 .375 (9.53) 4000 27.5 -8 .500 (12.70) 4000 27.5 -10 .625 (15.88) 3000
23、21 -12 .750 (19.05) 3000 21 -16 1.000 (25.40) 2500 17 1/ Dimensions 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
24、 materials. TABLE III. Over-tightening torque for swivel nutSAE dash size . 1/ 2/ 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)
25、1200 136 1/ Dimensions are in inches. 2/ Metric equivalents are given for information only. 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. M 52525/6 -8 -10 A PIN example: M52525
26、/6-8-10A, describes a 45 connector for a .500 Inches (12.70 mm) hose, and with .625 Inches (15.88 mm) tube, aluminum with an anodized 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 (see table I)
27、 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-52525/6C 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 in this docum
28、ent 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 R1. Location of marking is optional. Harmonization to SAE-J516 cross reference PIN in tabl
29、e 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 PINPIN . 1/ SAE PIN M52525/6-4-4 SAE J516 4-4 F242253 M52525/6-4-5 SAE J516 5-4 F242253 M52525/6-6-6 SA
30、E J516 6-6 F242253 M52525/6-8-8 SAE J516 8-8 F242253 M52525/6-8-10 SAE J516 10-8 F242253 M52525/6-12-12 SAE J516 12-12 F242253 M52525/6-16-16 SAE J516 16-16 F242253 1/ Material and finish designators are omitted from PINs see table I and SAE-J846. Changes from previous issue. Marginal notations are
31、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-52471/1 MIL-DTL-52471/4 MIL-DTL-81706 ASME B1
32、.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 4730-2007-074) DLA - CC Review activities: Army - CR4
33、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-,-,-
