1、 INCH-POUNDMIL-DTL-52525/31B 1 December 2008 SUPERSEDING MIL-DTL-52525/31A 30 June 1998 DETAIL SPECIFICATION SHEET FITTINGS, HOSE, SCREW-ON TO 37 FLARE FEMALE SWIVEL This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring th
2、e product described herein shall consist of this specification sheet and MIL-DTL-52525. FIGURE 1. Fitting, screw-on to 37 flare female swivel, straight. AMSC N/A FSC 4730Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-52525/31B 2 Part or Iden
3、tifying Number (PIN) Hose ID inches (mm) Hose OD inches (mm) Tube OD inches (mm) Thread size (see note 3) C max inches (cm) M52525/31-12-12 .75 (19.05) 1.26 (32.00) .75 (19.05) 1.063-12-UNC 5.95 (15.11) M52525/31-16-16 1.00 (25.40) 1.51 (38.35) 1.00 (25.40) 1.313-12-UNC 6.37 (16.18) PIN H Hex size L
4、 max inches (mm) M min inches (mm) N inches (mm) +.030 (0.76) -.015 (0.38) M52525/31-12-12 1.25 (31.75) 1.88 (47.75) .469 (11.91) .562 (14.27) M52525/31-16-16 1.50 (38.10) 2.31 (58.67) .563 (14.30) .594 (15.09) PIN N inches (mm) .030 .015 P (see note 4) inches (mm) .005 Q min inches (mm) M52525/31-1
5、2-12 .562 (14.27) .850 (21.59) .61 (15.5) M52525/31-16-16 .594 (15.09) 1.100 (27.94) .78 (19.8) 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 constant pitches (UNC), class 2B. 4. Dimension P to b
6、e concentric with dimension Q within .015 inch (0.38 mm) full indicator movement. 5. Method of fabrication and assembly of swivel nut is optional. 6. These fittings are similar to SAE-J516 type to be used with SAE-J517, type 100RE hose. FIGURE 1. Fitting, screw-on to 37 flare female swivel, straight
7、 - Continued. REQUIREMENTS: The fittings described herein are for use with hose in accordance with MIL-DTL-52471/7, type 100RE, 4-spiral-wrap reinforcement hose and hose assemblies in accordance with MIL-DTL-52471/8. Fittings shall be as specified on figure 1 and in tables I, II, and III. If fitting
8、s 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 of withstanding 96 hours minimum of salt spray. Provided by IHSNot for ResaleNo reproduction or networking permitted without license f
9、rom IHS-,-,-MIL-DTL-52525/31B 3 TABLE I. Material and finish identification codes. 1/ 2/ PIN code material/plating finish Material Plating finish A 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 ac
10、cordance with MIL-DTL-81706, type 2, class A. BN Aluminum alloy 6061 or 7075 Bare aluminum with NAVAIR TCP in accordance with MIL-DTL-81706, type 2, class A. C Cadmium plating in accordance with SAE-AMS-C-81562, type II, class 3 or SAE-AMS-QQ-P-416, type II, class 2. CN Steel Cadmium plating in acco
11、rdance 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 Cadmium plating in accordance with SAE-AMS-C-81562, type II, class 3 or SAE-AMS-QQ-P-416, type II, class 2. YN Chrome-molybdenum steel alloy 4130 C
12、admium 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. F Steel FN Chrome-molybdenum steel alloy 4130 NAVAIR TCP in accordance with MIL-DTL-81706, type 2, class A. G Steel YG Chrome-mo
13、lybdenum steel alloy 4130 Zinc plating with colorless passivate in accordance with ASTM B633, type V, Fe/Zn 25. H Steel YH Chrome-molybdenum steel alloy 4130 Zinc phosphate finish in accordance MIL-DTL-16232, type Z, class1. 3/ J Steel YJ Chrome-molybdenum steel alloy 4130 Zinc plating with chromate
14、 conversion in accordance with ASTM B633; type II or III, Fe/Zn 5, or ASTM B695, type II, class 5. K Nickel-copper alloy UNS N04400 No additional finish. M High-chromium nickel alloy UNS N06690 No additional finish. N Steel YN Chrome-molybdenum steel alloy 4130 Zinc aluminum in accordance with ASTM
15、F1136, grade 3, NC. P Steel YP Chrome-molybdenum steel alloy 4130 Zinc plating with colorless passivate in accordance with ASTM B633, type VI, Fe/Zn 5. S No additional finish. Passivation in accordance with SAE-AMS2700, type 6 or 7. SN Corrosion resistant steel Passivation above and NAVAIR TCP in ac
16、cordance 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 Steel YW Chrome-molybdenum steel alloy 4130 Any zinc plating above. Z Steel YZ Chrome-molybdenum steel alloy 4130 Any zinc plating ab
17、ove with NAVAIR TCP in accordance with MIL-DTL-81706, type 2, class A. 1/ All materials and finishes shall be in accordance with MIL-DTL-52525. 2/ Embitterment test need not be run. 3/ Zinc phosphate finish is hexavalent chromium free. Provided by IHSNot for ResaleNo reproduction or networking permi
18、tted without license from IHS-,-,-MIL-DTL-52525/31B 4 The operating pressure shall be as specified in table II. Maximum operating pressures are for low carbon steel fittings consult manufacturer for values on other materials. TABLE II. Maximum operating pressures of fittings. 1/ 2/ Maximum operating
19、 pressure” SAE dashsize Hose ID inches (mm) psi MPa-12 .750 (19.05) 6250 43.1 -16 1.000- (25.40) 5000 34.5 1/ Dimensions are in inches. 2/ Metric equivalents are given for information only. Over tightening torque for the swivel nut shall be as specified in table III. Over tightening torque values ar
20、e for low carbon steel fittings consult manufacturer for values on other materials. TABLE III. Over-tightening torque for swivel nut. 1/ 2/ Torque SAE dash size Tube OD inches (mm) Pound forcefoot(lbf-ft) N-m -12 .750 (19.05) 75 101.7-16 1.000- (25.40) 100 135.61/ Dimensions are in inches. 2/ Metric
21、 equivalents are given for information only. PIN: The PIN consists of the letter “M” the specification sheet number, a dash, a number for the hose size a dash, a number for tube size, and a material finish designator. M 52525/31 -16 -16 A Size dash number for hose (see figure 1) Specification sheet
22、numberM prefix Material/finish designator (see table II Size dash number for tube (see figure 1) PIN example: M52525/31-16-16A, describes a 37 flare female swivel for a 1.00 inch (25.40 mm) hose to 1.00 inch (25.40 mm) tube OD, aluminum with an anodized finish. To the users of this document, it is r
23、ecommended that the use of carbon steel material with cadmium plating be used only when the other materials and finishes specified in this document cannot meet performance requirements. Color identification. Color identification shall be in accordance with SAE-AS4841. Marking shall include the manuf
24、acturers name or trademark, size, and hose identifier 100RE. Location of marking is optional. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-52525/31B 5 Harmonization to SAE-J516 cross reference PIN in table IV is for reference only. SAE sty
25、le 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 2/ M52525/31-12-12 SAE J516 4-4 F2401EE M52525/31-16-16 SAE J516 4-5 F2401EE 1/ Material and finish designators are om
26、itted from PINs, see table II and SAE-J846. 2/ The “EE” at the end of the SAE PIN is to indicate a nonstandard part. 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 docu
27、ments. In addition to MIL-DTL-52525, this document references the following: MIL-A-8625 MIL-DTL-16232 MIL-DTL-52471 MIL-DTL-52471/7 MIL-DTL-52471/8 MIL-DTL-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
28、 SAE-J846 CONCLUDING MATERIAL Custodians: Preparing activity: Army - AT DLA - CC Navy - SH Air Force - 99 (Project 4730-2007-089) DLA - CC Review activities: 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-,-,-
