1、MIL-DTL-32434/4 23 January 2013 DETAIL SPECIFICATION SHEET HOSE ASSEMBLY, POLYTETRAFLUOROETHYLENE, CONVOLUTED, REUSABLE FITTINGS, HIGH TEMPERATURE, MEDIUM PRESSURE, FLARELESS-TO-FLANGE This specification is approved for use by all Departments and Agencies of the Department of Defense. The requiremen
2、ts for acquiring the product described herein shall consist of this specification sheet and MIL-DTL-32434. Hose assembly with class 1 fittings (450F) corrosion resistant steel Hose assembly with class 1 fittings (450F) corrosion resistant steel End 1 End 2 End 1 End 2 NOTES: 1. See tables I and II f
3、or fitting ends and HCOF. 2. Fittings shall mate with parts designed to SAE-AS33514 and the mounting pad as shown on MS33786. FIGURE 1. Class 1 hose assembly styles with flareless-to-flange reusable fittings. AMSC N/A FSC 4720 INCH-POUND Provided by IHSNot for ResaleNo reproduction or networking per
4、mitted without license from IHS-,-,-MIL-DTL-32434/4 2 Hose assembly styles with class 2 fittings (275F) combination of aluminum and corrosion resistant steel Hose assembly styles with class 2 fittings (275F) combination of aluminum and corrosion resistant steel End 1 End 2 End 1 End 2 NOTES: 1. See
5、tables I and II for fitting ends and HCOF. 2. Fittings shall mate with parts designed to SAE-AS33514 and the mounting pad as shown on MS33786. FIGURE 2. Class 2 hose assembly styles with flareless-to-flange reusable fittings. Provided by IHSNot for ResaleNo reproduction or networking permitted witho
6、ut license from IHS-,-,-MIL-DTL-32434/4 3 Hose cut-off factor (HCOF) for assembly with class 1 fittings: See table l. TABLE I. Hose cut-off factor (HCOF) for assembly with class 1 fittings. 1/ Hose assembly style with class 1 corrosion resistant steel (CRES) fittings 2/ Fitting ends HCOF (size vs le
7、ngth) 3/ 1 2 8 10 12 16 20 24 A MS27381 MS27054 2.39 2.74 2.78 3.19 3.41 3.88 B MS27381 MS27056 2.41 2.74 3.30 3.56 3.94 4.57 C MS27381 MS27058 2.37 2.73 3.32 3.63 4.06 4.75 D MS27384 MS27056 3.20 MS27382 MS27056 3.19 4.13 4.31 4.83 5.53 E MS27384 MS27058 3.16 MS27382 MS27058 3.18 4.15 4.38 4.95 5.7
8、1 F MS27385 MS27058 2.52 MS27383 MS27058 2.82 3.84 4.10 4.68 5.36 G MS27384 MS27054 3.18 MS27382 MS27054 3.19 3.61 3.94 4.30 4.84 H MS27385 MS27054 2.54 MS27383 MS27054 2.83 3.30 3.66 4.03 4.49 J MS27385 MS27056 2.56 MS27383 MS27056 2.83 3.82 4.03 4.56 5.18 1/ Class 1 fittings, styles A through J, a
9、re made from CRES. 2/ For depiction of styles see figure 1. 3/ The HCOF is used in the following calculation to determine the hose length required to produce an assembly of a specific size, style and length: Assembly length - HCOF = Hose length. For example, the hose length required to produce an 30
10、.00 inch length assembly of size 20, style F is calculated as follows: 30.00 - 4.68 = 25.32. HCOF for assembly with class 2 fittings: See table ll. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32434/4 4 TABLE II. HCOF for assembly with cla
11、ss 2 fittings. 1/ Hose assembly style with class 2 aluminum and CRES fittings 2/ Fitting ends HCOF (size vs length) 3/ 1 2 8 10 12 16 20 24 K MS27381 MS27054 2.39 2.74 2.78 3.19 3.41 3.88 M MS27381 MS27056 2.41 2.74 3.30 3.56 3.94 4.57 N MS27381 MS27058 2.37 2.73 3.32 3.63 4.06 4.75 P MS27384 MS2705
12、6 3.20 MS27382 MS27056 3.19 4.13 4.31 4.83 5.53 R MS27384 MS27058 3.16 MS27382 MS27058 3.18 4.15 4.38 4.95 5.71 S MS27385 MS27058 2.52 MS27383 MS27058 2.82 3.84 4.10 4.68 5.36 T MS27384 MS27054 3.18 MS27382 MS27054 3.19 3.61 3.94 4.30 4.84 U MS27385 MS27054 2.54 MS27383 MS27054 2.83 3.30 3.66 4.03 4
13、.49 V MS27385 MS27056 2.56 MS27383 MS27056 2.83 3.82 4.03 4.56 5.18 1/ Class 2 fittings, styles K through V, are made from combination of aluminum and CRES. 2/ For depiction of styles see figure 1. 3/ The HCOF is used in the following calculation to determine the hose length required to produce an a
14、ssembly of a specific size, style and length: Assembly length - HCOF = Hose length. For example, the hose length required to produce an 30.00 inch length assembly of size 20, style P is calculated as follows: 30.00 - 4.83 = 25.17. REQUIREMENTS Assembly classification: Class 1 and class 2 hose assemb
15、lies, as specified in MIL-DTL-32434, have been incorporated into the Part or Identifying Number (PIN) as a part of styles (see tables I and II and figures 1 and 2). Dimensions: Unless otherwise specified, all dimensions are in inches. Fittings: All fittings shall be qualified in accordance with MIL-
16、DTL-27272. Flareless fitting, hose connector design: NAS1760 flareless fitting end design see MIL-DTL-25579/1 for application and construction. Hose: The hose shall be in accordance with MIL-DTL-32435. Size code and elbow fitting drop height: See table III. Provided by IHSNot for ResaleNo reproducti
17、on or networking permitted without license from IHS-,-,-MIL-DTL-32434/4 5 TABLE III. Size code and elbow fitting drop height. 1/ Dimensions (a), (b), (c) and (d) are shown on figure 3. Assembly length and tolerance: Hose assembly shall be furnished in lengths as specified in the contract or purchase
18、 order (see figure 4); however, tolerances on the length of each hose assembly shall be as follows: a. 1/8 inch for lengths under 18 inches. b. 1/4 inch for lengths from 18 inches to 36 inches. c. 1/2 inch for lengths from 36 inches to 50 inches. d. 1% for lengths over 50 inches. Size Reference tube
19、 OD Size code Maximum drop height of elbow fitting (a) 1/ (b) 1/ (c) 1/ (d) 1/ 8 .500 H .642 1.072 .458 .927 10 .625 J .760 1.427 .410 .931 12 .750 K .835 1.661 .503 1.191 16Z 1.000 M .889 1.811 .540 1.317 20Z 1.250 N .997 2.091 .605 1.535 24Z 1.500 P 1.190 2.473 .659 1.723 Provided by IHSNot for Re
20、saleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32434/4 6 NOTES: 1. Hose assembly length “L” shall be measured, with the hose laid out horizontally and straight between the centers of the nipple end and the flange-sealing surface, along a straight line parallel to th
21、e hose length. 2. See table III for dimensions of (a), (b), (c) and (d). Dimensions (a) and (b) are measured to the end of a ball nose style fitting. Adjustments should be made for a NAS1760 style fitting see requirements application of NAS1760 and ball nose style fitting. FIGURE 3. Elbow fitting dr
22、op height, dimensions (a), (b), (c) and (d). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32434/4 7 Angular alignment: Hose assemblies with elbow fittings on each end shall have the angular orientation between the elbows measured counter-c
23、lockwise from the centerline of the nearest fitting, positioned at six-oclock, to the centerline of the other fitting (see figure 4). The elbow fitting drop height shall be as shown on figure 3 and table III. When applicable, the angular alignment shall be expressed in three digits and specified in
24、the PIN. NOTE: Angular alignment shall be measured in degrees with a tolerance of 2. FIGURE 4. Measurement of angular alignment between elbow fittings. Protective sleeve: If required, the hose assembly shall include a protective sleeve (see table IV) and its code shall be included in the PIN. Fire p
25、rotective sleeve shall be subjected to testing in accordance with MIL-DTL-32434. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32434/4 8 TABLE IV. Protective sleeve code. Code Type Blank None A SAE-AS1072 sleeve, fire protection, silicone c
26、overed, temperature ranging from -65F to 500F, secured with CRES bands as required. 1/ B SAE-AS1073 - code B sleeve, abrasion protection, heat shrinkable, black polyolefin, temperature ranging from -65F to 250 F. C SAE-AS1291 - code A sleeve, chafe guard, extruded seamless white PTFE, temperature ra
27、nging from -65F to 450F, secured with CRES bands as required. D SAE-AS1291 - code C sleeve, chafe guard, extruded seamless transparent FEP, temperature ranging from -65F to 350F, secured with CRES bands as required. E SAE AS1298 sleeve, heavy wall chafe guard, extruded seamless black PTFE, temperatu
28、re ranging from -65F to 450F, secured with CRES bands as required. L Lock-wire hole F Code A + L G Code B + L H Code C + L J Code D + L K Code E + L 1/ To prevent wicking of fluids, the cut end of the fire protective sleeve (code A) shall be coated with room temperature vulcanized (RTV) silicone rub
29、ber prior to installation. After installation, cracks and voids in the fire protective sleeve shall be coated with RTV rubber to prevent exposure of asbestos or fiberglass. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32434/4 9 PIN: The PI
30、N consists of letter M, specification sheet number, hose size code, hose length in inches and an eighths of an inch, hose assembly style, sleeve code, and angular alignment in degree between elbow fittings. M 32434/4 H 08 2 F A 030 PIN example: M32434/4H082FA030 represents inch OD PTFE convoluted ho
31、se assembly, 8.25 inches long, flareless-to-flange reusable fittings with fire protective sleeve and 30o angular alignment between elbow fittings. Referenced documents. In addition to MIL-DTL-32434, this document references the following: MIL-DTL-25579/1 MIL-DTL-27272 MIL-DTL-32435 MS27054 MS27056 M
32、S27058 MS27381 MS27382 MS27383 MS27384 MS27385 MS33786 NAS1760 SAE-AS1072 SAE-AS1073 SAE-AS1291 SAE-AS1298 SAE-AS33514 Angular alignment between elbow fittings as specified on figure 3 (leave blank for styles A, B, C, G, H, and J). Protective sleeve code (see table IV). Leave blank if not required.
33、Style (see table I and figures 1 or 2). Length in eights of an inch. Length in inches. Size code (see table III). Specification sheet number. M Prefix Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32434/4 10 CONCLUDING MATERIAL Custodians:
34、Preparing activity: Army - AV DLA - CC Navy - AS Air Force - 99 (Project 4720-2012-022) DLA - CC Review activities: Army - AR, AT, EA, MI Navy - MC, SA, SH Air Force 71 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 https:/assist.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
