1、 MIL-DTL-32371/6 24 April 2012 DETAIL SPECIFICATION SHEET FITTINGS, HYDRAULIC TUBE, SPHERICAL TO ORFS, MALE ADAPTER, NIPPLE TUBE, REGULAR HEX, LONG This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the product describe
2、d herein shall consist of this specification sheet and MIL-DTL-32371. Suffix designator Tube OD nom. inches (mm) T ORFS thread TT spherical thread C Hex flat nom. L inches (mm) .050 (1.27) -4 .2500 (6.350) 0.5625-18UNF-2A .4375 - 20 UNJF-3A 1/2 1.750 (44.45) -6 .3750 (9.525) 0.6875-16UN-2A .5000-20
3、UNJF-3A 5/8 2.094 (53.19) -8 .5000 (12.700) 0.8125-16UN-2A .7500-16 UNJF-3A 13/16 2.469 (62.71) -10 .6250 (15.875) 1.0000-14UN-2A .8750-14 UNJF-3A 15/16 2.875 (73.03) -12 .7500 (19.050) 1.1875-12UN-2A 1.0625-12 UNJ-3A 1 1/8 3.281 (83.34) -16 1.0000 (25.400) 1.4375-12UN-2A 1.3125-12 UNJ-3A 1 3/8 3.59
4、4 (91.29) -20 1.2500 (31.750) 1.6875-12UN-2A 1.6250-12 UNJ-3A 1 11/16 4.094 (103.99) -24 1.5000 (38.100) 2.0000-12UN-2A 1.8750-12 UNJ-3A 2 4.625 (117.48) FIGURE 1. Nipple tube, long, spherical to ORFS adapter. AMSC N/A FSC 4730 INCH-POUND Provided by IHSNot for ResaleNo reproduction or networking pe
5、rmitted without license from IHS-,-,-MIL-DTL-32371/6 2 Suffix designator M inches (mm) .030 (0.76) -4 .720 (18.29) -6 .830 (21.08) -8 .980 (24.89) -10 1.110 (28.19) -12 1.280 (32.51) -16 1.470 (37.34) -20 1.590 (40.39) -24 1.780 (45.21) NOTES: 1. Dimensions are in inches. 2. Metric equivalents are g
6、iven for information only. 3. Break all sharp edges and remove all burrs and slivers. 4. Dimensions and tolerances not shown shall be in accordance with SAE-AS5309 for spherical, 37 flared end, SAE-J1453-3 for ORFS end, and SAE-J514 for body. 5. This drawing is for identification purposes only and i
7、s not intended to restrict designs and shapes not dimensioned. 6. SAE nuts and sleeves shall be plated in accordance with MIL-DTL-32371. FIGURE 1. Nipple tube, long, spherical to ORFS adapter - Continued. REQUIREMENTS: Fittings shall be as specified on figure 1 and in table I. Materials and finishes
8、 shall be in accordance with MIL-DTL-32371. Finish designators. Finishes designators shall be as specified in table I. All platings shall be capable of meeting a minimum of 96 hours salt spray test in accordance with ASTM B117. The fittings shall show no evidence of corrosion after 96 hours of salt
9、spray. Fluid passages, other openings, and internal threads shall not be subject to the plating thickness requirement and may have bare areas provided they are protected with a light film of oil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DT
10、L-32371/6 3 TABLE I. Material and chemical finish identification codes and chemical finish reference. 1/ PIN code material/plating finish Material Plating finish Blank Steel Cadmium plating in accordance with SAE-AMS-C-81562, type II, class 3 or SAE-AMS-QQ-P-416, type II, class 2. 2/ CN Cadmium plat
11、ing in accordance with SAE-AMS-C-81562, type II, class 3 or SAE-AMS-QQ-P-416, type II, class 2 with NAVAIR trivalent chromium pretreatment (TCP) in accordance with MIL-DTL-81706, type II, class 1A. 2/ E NAVAIR TCP in accordance with MIL-DTL-81706, type II, class 1A. F Steel Zinc plate (finish J, P,
12、or R) with NAVAIR TCP in accordance with MIL-DTL-81706, type II, class 1A. H Steel Aluminum-nickel in accordance with ASTM F1136/F1136M, grade 3, NC. J Steel Zinc-nickel in accordance with SAE-AMS2417, type 2, grade B. M Nickel-copper alloy UNS N04400 No additional finish. N High-chromium nickel all
13、oy UNS N06690 No additional finish. P Steel Zinc phosphate finish in accordance MIL-DTL-16232 type Z, class1. R Steel Zinc plating in accordance with ASTM B633; type VI, Fe/Zn 5. 3/ S Corrosion resistant steel No additional finish. Passivation in accordance with SAE-AMS2700, type 6 or 7. T Titanium
14、4/ Anodize in accordance with SAE-AMS2488 type 2. TF Fluoride phosphate in accordance with SAE-AMS2486. Z Steel Zinc plating in accordance with ASTM B633; type II or III, Fe/Zn 5, or ASTM B695, type II, class 5. ZN Steel Zinc plating in accordance with ASTM B633; type II or III, Fe/Zn 5, or ASTM B69
15、5, type II, class 5 with NAVAIR TCP in accordance with MIL-DTL-81706, type II, class 1A. 1/ Table is for Part or Identifying Number (PIN) code use only. Materials and finishes shall be in accordance with MIL-DTL-32371. 2/ Hydrogen embrittlement relief test need not be run. 3/ Hexavalent chromium fre
16、e. 4/ Titanium shall not be used in oxygen or potable water systems. Trivalent wrenchability. When the finish has been damaged due to poor wrenchability, the surface of the connector shall be touched up using the brush plating process below. The term “trivalent wrenchability” is used to evaluate the
17、 ability of the finish to withstand abrasion from an excessive amount of wrenching. a. Brush plating of hard chromium by electrodeposition shall be in accordance with SAE-AMS2451/5. b. Brush plating of medium-hardness, low stress nickel by electrodeposition shall be in accordance with SAE-AMS2451/9.
18、 c. Brush plating of NAVAIR TCP shall be in accordance with MIL-DTL-81706, type II, class 1A, material form 1 through 6, application method B. Example of a PIN: M817062A6B. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32371/6 4 Maximum ope
19、rating pressure. Maximum operating pressure shall be in accordance with MIL-DTL-32371. PIN: The PIN consists of the letters “M”, the specification number, a dash number, and a material and finish code letter. M32371 /6 -10 P PIN example: M32371/6-10P indicates a nipple tube, long adapter, .6250 inch
20、 (.1588 mm), steel with NAVAIR TCP. O-ring is not supplied order separately, see SAE-J515. Cadmium is not recommended. To the users of this document, it is recommended that the use of carbon steel material with cadmium plating be used only when other materials and finishes specified in this document
21、 cannot meet performance requirements. Referenced documents. In addition to MIL-DTL-32371, this document references the following: MIL-DTL-16232 MIL-DTL-81706 ASTM B117 ASTM B633 ASTM B695 ASTM F1136/F1136M SAE-AMS-C-81562 SAE-AMS-QQ-P-416 SAE-AMS2417 SAE-AMS2451/5 SAE-AMS2451/9 SAE-AMS2486 SAE-AMS2
22、488 SAE-AMS2700 SAE-AS5175 SAE-AS5176 SAE-AS5309 SAE-AS8879 SAE-J514 SAE-J515 SAE-J1453-1 SAE-J1453-3 CONCLUDING MATERIAL Custodians: Preparing activity: Army - AT DLA - CC Navy - AS Air Force - 99 (Project 4730-2010-007) DLA - CC Review activities: Army - AR Navy - CG, MC, SA, SH Air Force - 71 Tub
23、e size (see figure 1) Specification sheet number M prefix Material and finish code, see table I Specification number Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32371/6 5 NOTE: The activities listed above were interested in this document
24、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.daps.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
