1、 INCH-POUNDMIL-DTL-52525/37B 1 December 2008 SUPERSEDING MIL-DTL-52525/37A 30 June 1998 DETAIL SPECIFICATION SHEET FITTINGS, HOSE, SCREW-ON TO 37 FLARE FEMALE SWIVEL, STRAIGHT This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for ac
2、quiring the 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-52525/37B 2 Pa
3、rt or Identifying Number (PIN) Hose ID inches (mm) Hose OD inches (mm) Tube OD inches (mm) Thread size C max inches (mm) M52525/37-08-08 .50 (12.70) .94 (23.88) .50 (12.70) .750-16 3.20 (81.28) M52525/37-12-12 .75 (19.05) 1.21 (30.73) .75 (19.05) 1.063-12 3.90 (99.06) M52525/37-16-16 1.00 (25.40) 1.
4、50 (38.10) 1.00 (25.40) 1.313-12 4.50 (114.30) PIN H hex size inches (mm) L max inches (mm) M min inches (mm) N inches (mm) +.030 (0.76) -.015 (0.38) P inches (mm) (see note 3) .005 (0.13) M52525/37-08-08 .88 (22.35) 1.29 (32.77) .384 (9.75) .435 (11.05) .570 (14.48) M52525/37-12-12 1.25 (31.75) 1.7
5、3 (43.94) .487 (12.37) .562 (14.27) .850 (21.59) M52525/37-16-16 1.50 (38.10) 2.02 (51.31) .505 (12.83) .594 (15.09) 1.103 (28.02) PIN Q min inches (mm) M52525/37-08-08 .37 (9.40) M52525/37-12-12 .56 (14.22) M52525/37-16-16 .81 (20.57) NOTES: 1. Dimensions are in inches. 2. Metric equivalents are gi
6、ven for information only. 3. Dimension P to be concentric with dimension Q within .015 inch (.038 mm). 4. Method of fabrication and assembly of swivel nut is optional. FIGURE 1. Fitting, screw-on to 37 flare female swivel, straight - Continued. REQUIREMENTS: The fittings described herein are for use
7、 with hose in accordance with MIL-DTL-52471/9, 4-spiral-wrap reinforcement hose, and hose assemblies in accordance with MIL-DTL-52471/10, type 100R12. The fittings shall be as specified on figure 1 and in tables I, II, and III. If fittings are to be used on an oxygen hose, see MIL-DTL-52525. Materia
8、ls 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 from IHS-,-,-MIL-DTL-52525/37B 3 TABLE I. Material and finish i
9、dentification 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 accordance with MIL-DTL-81706, type 2, class A. BN Aluminum allo
10、y 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 accordance with SAE-AMS-C-81562, type II, class 3 or SAE-AMS-QQ-P-
11、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 Cadmium plating in accordance with SAE-AMS-C-81562, type II, cl
12、ass 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-molybdenum steel alloy 4130 Zinc plating with colorless passivat
13、e 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 conversion in accordance with ASTM B633; type II or III, Fe/Z
14、n 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 F1136, grade 3, NC. P Steel YP Chrome-molybdenum steel alloy 4
15、130 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 accordance with MIL-DTL-81706, type 2, class A. T Titanium Anodi
16、ze 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 above with NAVAIR TCP in accordance with MIL-DTL-81706, type 2,
17、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 permitted without license from IHS-,-,-MIL-DTL-52525/37B 4 The oper
18、ating 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/ SAE dash size Hose ID inches (mm) psi MPa -08 .50 (12.70) 5000 34.5 -12 .75 (19
19、05) 4000 27.6 -16 1.00 (25.40) 4000 27.6 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 materials.
20、TABLE III. Over-tightening torque for swivel nut. 1/ 2/ Torque SAE dash size Tube OD inches (mm) Pound force foot(lbf-ft) N m -08 .50 (12.70) 37.5 50.8 -12 .75 (19.05) 75 101.7 -16 1.00 (25.40) 100 135.6 1/ Dimensions are in inches. 2/ Metric equivalents are given for information only. PIN: The PIN
21、consists of the letter “M” the specification sheet number, a dash, a number for the hose size a dash, a number for flange size, and a material finish designator. M 52525/37 -16 -16 A PIN example: M52525/37-16-16A, describes a screw-on to 37 flare female swivel, for a 1.00 inch (25.40 mm) hose to a 1
22、00 inch (25.40 mm) tube, aluminum with an anodized finish. 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 document cannot meet performance requirements. Color identifica
23、tion. Color identification shall be in accordance with SAE-AS4841. Marking shall include the manufacturers name or trademark, size, and hose identifier 100R12. Location of marking is optional. Size dash number for tube (see figure 1) Specification sheet numberSize dash number for hose (see figure 1)
24、 M prefix Material/finish designator (see table I) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-52525/37B 5 Harmonization to SAE-J516 cross reference PIN in table IV is for reference only. SAE-J516 style fittings may not have the same mate
25、rial/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 M52525/37-08-08 SAE J516 8-8 F240177 M52525/37-12-12 SAE J516 12-12 F240177 M52525/37-16-16 SAE J516 16-16 F240177 1/ Material and finish designators are om
26、itted from PINs, see table I and SAE-J846. 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 documents. In addition to MIL-DTL-52525, this document references the followin
27、g: MIL-A-8625 MIL-DTL-16232 MIL-DTL-52471 MIL-DTL-52471/9 MIL-DTL-52471/10 MIL-DTL-81706 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-J846 CONCLUDING MATERIAL Custodians: Preparing activity: Army - AT DLA - CC Navy - SH A
28、ir Force - 99 (Project 4730-2007-093) 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-,-,-
