1、AMSC N/A FSC 4730 MS27068D 1 May 2013 SUPERSEDING MS27068C 24 September 2003 DETAIL SPECIFICATION SHEET ELBOW SUBASSEMBLY, FLARED, 90 FORGED, SWIVEL NUT This specification sheet is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the produ
2、ct described herein shall consist of this specification sheet and MIL-DTL-27272. NOTES: 1. Dimension A, see table II, is measured between the hose end of the threaded section of the union and the centerline of the insert. 2. Dimension B, see table II is measured between the centerline of the nipple
3、and the free end of the insert at its centerline. 3. If required lockwire holes to be drilled on this side of subassembly in accordance with SAE-AS1043. 4. Any forged design of adapter components to the left of plane A-A is acceptable provided that requirements of this specification sheet and the pr
4、ocurement specification are met. FIGURE 1. Elbow subassembly illustration. .INCH-POUND Provided by IHSNot for Resale-,-,-MS27068D 2 REQUIREMENTS Elbow subassembly illustration, see figure 1. Intended use. This part is a component of MS27060. Materials. Material and material codes see table I. See ap
5、plicable specification sheet and MIL-DTL-27272 for material of other components identified in table II for their material requirements. TABLE I. Materials and PIN codes. Material code Material Blank Combination of aluminum alloy and corrosion-resistant steel (CRES) C CRES TABLE II. Elbow subassembly
6、 composition. 1/ 2/ Size and material code Wire size and material code Union, nipple size and material code Elbow, nipple end size and material code A .020 inch (mm) B .020 inch (mm) MS27072 3/ M27071 3/ MS27086 3/ -3/-4 4/ -4C -4C -3/-4C .845 (21.46) .530 (13.46) -3/-4C 4/ -4 -4C -4C -4C .845 (21.4
7、6) .580 (14.73) -4C -5 -5C -5C -5C .900 (22.86) .655 (16.64) -5C -6 -6C -6C -6C .965 (24.51) .720 (18.29) -6C -8 -8C -8C -8D 5/ 1.235 (31.37) .830 (21.08) -8C -8C 1/ Dimensions are in inches. 2/ Metric equivalents are given for general information only. 3/ MS27071, MS27072 and MS27086 shall be dry f
8、ilm lubricated in accordance with table III, dry film shall be applied in accordance with MS27071 or MS27086 as applicable. 4/ Swivel nut and sealing surface of this elbow subassembly shall mate with SAE-AS4395-3 fitting. The remaining portion of the subassembly shall mate with M27267-4 hose. 5/ Mat
9、erial code “D” aluminum alloy. Provided by IHSNot for Resale-,-,-MS27068D 3 Finish: Corrosion-resistant steel, do not passivate. Aluminum alloy. Anodize in accordance with MIL-A-8625, type II, dye blue. If required, lockwire holes to be drilled in accordance with SAE-AS1043. MS27068 threads on -3/-4
10、C through -8C shall be lubricated with dry-film lubricant in accordance with table III. MS27071 and MS27086 parts shall be coated with the same type of dry film lubricant as indicated in the PIN, no mixing of dry film lubricants shall be used on an assembly unless it is of the types specified by the
11、 blank designator. NOTE: Avoid using graphite dry film lubes with aluminum nipples because in a wet environment, graphite becomes corrosive to the aluminum. TABLE III. Dry film designator. Dry film designator SAE class or type designator Dry film characteristics Blank Any SAE class or type below N/A
12、 SAE-AS1701 SAE-AS1701 class SAE-AS1701 temperature ranges F (C) 4 4 -65 to +1400F (-54 to 760C) 5 5 -65 to +850F (-54 to 454C) 6 6 -375 to +850F (-226 to 454C) SAE-AS5272 SAE-AS5272 type SAE-AS5272 temperature ranges. F (C) 7 Type I -90 to 400F (-68 to 204C) endurance life of 250 min minimum 8 Type
13、 II -90 to 400F (-68 to 204C) endurance life of 450 min minimum 9 Type III Color 1 - Natural product color -90 to 400F (-68 to 204C) low Volatile organic compound with an endurance life of 450 min minimum 10 Type III Color 2 - Black color -90 to 400F (-68 to 204C) low Volatile organic compound with
14、an endurance life of 450 min minimum Dry film designator MIL classification Dry film characteristics MIL-PRF-46010 1/ - MIL-PRF-46010 temperature ranges. F (C) 11 1 Color 1 natural product color, -90 to 400F (-68 to 204C) solvent resisting 12 2 Color 2 - Black color -90 to 400F (-68 to 204C) solvent
15、 resisting 1/ Not for aerospace usage. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHSMS27068D 4 PIN: The PIN consists of prefix “MS” the specification sheet number, dash number for 90 elbow subassembly size, letter for material, blank or L for lockwire
16、holes, and a blank or number for dry film lubricant. Unassigned PINs shall not be used. MS 27068 -8 C L 4 PIN examples: MS27068-8C indicates a 90 elbow subassembly size 8, CRES with dry film class designator “blank”. MS27068-8C4 indicates a 90 elbow subassembly size 8, CRES with dry film class desig
17、nator 4. MS27068-8L indicates a 90 elbow subassembly size 8, a combination of aluminum and CRES, with lockwire holes, and with dry film class designator “blank”. Identification of product. The PIN and the manufacturers trademark shall be permanently marked on the assembly. Order of precedence. Unles
18、s otherwise noted herein or in the contract, in the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been ob
19、tained. Referenced documents shall be of the issue in effect on date of invitations for bid. 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 MI
20、L-DTL-27272, this document references the following: MIL-A-8625 MIL-PRF-46010 MS27060 MS27071 MS27072 MS27086 SAE-AS1043 SAE-AS4395 SAE-AS5272 SAE-AS1701 Specification sheet number MS prefix Material code letter (see table I) Size code number (see table II) Blank or “L” for lockwire holes Dry film d
21、esignator (see table III) Provided by IHSNot for Resale-,-,-MS27068D 5 CONCLUDING MATERIAL Custodians: Preparing activity: Army - AV DLA - CC Navy - AS Air Force - 99 (Project 4730-2013-021) DLA - CC Review activities: Army - AR, AT, 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 Resale-,-,-
