DEFENSE LOGISTICS AGENCY LAND AND MARITIME P.O. BOX 3990 COLUMBUS, OHIO 43218-3990 29 November 2012 MEMORANDUM FOR MILITARY/INDUSTRY DISTRIBUTION SUBJECT: Initial Draft(s) of: MIL-DTL-24308/1K, /3J, /4P, /5M, /6P, /7J, /8P, /25K, /27E, /28E w/Amendments 1, 1, 1, 2, 2, 2, 2, 2, 1, 1. Project Number(s): 5935-2013-018, 019, 020, 021, 022, 023, 024, 025, 026, 027 These initial draft(s) for these subject document(s), are now available for viewing and downloading from the DLA Land and Maritime-VA Web site: http://www.landandmaritime.dla.mil/programs/milspec/ Major changes to these document(s) include: 1. Amend the PIN (Part Identification Number) for the "No suffix = zinc" to "Z = zinc" on MIL-DTL-24308/1 through MIL-DTL-24308/28. 2. MIL-DTL-24308/3: amended figure 1 drawing of two "Note 3s" to include "Note 6". 3. MIL-DTL-24308/4 and /8: amended figure 1 drawing to reflect pin instead of a socket. 4. MIL-DTL-24308/27 and /28 : amended insert material of Polyester glass filled 15 percent or type GPT- 15F in accordance with MIL-M-24519. Concurrence or comments are required at this Center within 45 days from the date of this letter. Late comments will be held for the next coordination of the document. Comments from military departments must be identified as either "Essential" or "Suggested". Essential comments must be justified with supporting data. Military review activities should forward comments to their custodians of this office, as applicable, in sufficient time to allow for consolidating the department reply. Lack of response to this draft will be construed as concurrence. Since Navy-EC is the custodian for this document, all Navy review activities should forward their comments directly to this Center. If these document(s) are of interest to you, please provide your comments or suggested changes. The point of contact for this document is Mr. Wypasek, phone number 614-692-0530, facsimile transmission, 614-692-6939, e-mail: edmund.wypasek@dla.mil, or may be mailed via the US Postal Service to DLA LAND AND MARITIME, ATTN: VAI (Attention: Ed Wypasek), P.O. Box 3990, Columbus, OH 43218-3990. SUBJECT: Initial Draft(s) of MIL-DTL-24308/1K, /3J, /4P, /5M, /6P, /7J, /8P, /25K, /27E, /28E w/Amendments 1, 1, 1, 2, 2, 2, 2, 2, 1, 1. Project Number(s): 5935-2013-018, 019, 020, 021, 022, 023, 024, 025, 026, 027 - CONTINUED. Sincerely, / SIGNED / ABDONASSER M. ABDOUNI Chief, Interconnection Branch cc: FMVA (Dave Barman) DSCC.Standardization@dla.mil Note: This draft dated 29 November 2012, prepared by DLA Land and Maritime-VAI has not been approved and is subject to modification. DO NOT USE PRIOR TO APPROVAL. (Project 5935-2013-025) INCH-POUND MIL-DTL-24308/25K w/AMENDMENT 2 DRAFT SUPERSEDING MIL-DTL-24308/25K w/AMENDMENT 1 18 July 2011 DETAIL SPECIFICATION SHEET CONNECTORS, ELECTRIC, RECTANGULAR, MINIATURE, POLARIZED SHELL, RACK AND PANEL, SCREW-LOCK ASSEMBLY, MALE This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the product described herein shall consist of this specification sheet and MIL-DTL-24308. FIGURE 1. Dimensions and configurations. AMSC N/A FSC 5935 MIL-DTL-24308/25K w/AMENDMENT 2 DRAFT DATED 29 NOVEMBER 2012 Inches .010 .012 .015 .020 .025 .030 mm 0.25 0.30 0.38 0.51 0.64 0.76 Inches .031 .070 .110 .113 .125 .130 mm 0.79 1.78 2.79 2.87 3.18 3.30 Inches .182 .188 .222 .250 .265 .28 mm 4.62 4.78 5.64 6.35 6.73 7.1 Inches .281 .312 .555 .656 FIGURE 1. Dimensions and configurations - Continued. 2 mm 7.14 7.92 14.10 16.66 MIL-DTL-24308/25K w/AMENDMENT 2 DRAFT DATED 29 NOVEMBER 2012 Dash no. (see note 1) Applicability Without shields in accordance with SAEAS85049/48-2, -3 -6 Dimensions (see notes 2 and 3) With shields in accordance with SAE-AS85049/48-2, -3 Connector MIL-DTL-24308/ Shell size 1, 2, 3, 4 1,2,3 4,5,6 Connector MIL-DTL-24308/ Superseded dash number A B See configuration B +.000 .250 (0.00) (6.35)-.031 (0.79) --- Shell size -7 3, 4 3, 4 .555 .015 (14.10) (0.38) See configuration A .312 .010 (7.92) (0.25) --- -8 3, 4 5 .656 .015 (16.66) (0.38) See configuration A .312 .010 (7.92) (0.25) --- -9 (see note 4) 1, 2, 3, 4 1,2,3, 4 3, 4 1, 2 1,2 1,2,3 4 .555 .015 (14.10) (0.38) See configuration A .281 .010 (7.14) (0.25) -1,-2, -3,-4 -10 (see note 4) 1, 2, 3, 4 5 1, 2 5 .656 .015 (16.66) (0.38) See configuration A .281 .010 (7.14) (0.25) -5 NOTES: 1. 2. 3. 4. Male jackscrew assembly supplied as an individual order, not by the pair. Dimensions are in inches. Metric equivalents are given for information only. M24308/25-1 through -5 are inactive for new design. New design or government logistic support should use M24308/25-9 or M24308/25-10. FIGURE 1. Dimensions and configurations - Continued. 3 MIL-DTL-24308/25K w/AMENDMENT 2 DRAFT DATED 29 NOVEMBER 2012 REQUIREMENTS: Dimensions and configuration: See figure 1. Material: Screws - Cold rolled steel or corrosion resistant steel in accordance with ASTM A582/A582M, ASTM A555/A555M, or ASTM A493. Clips - Sheet steel or corrosion resistant steel in accordance with ASTM A666. Finish: Cold rolled and sheet steel - Yellow chromate over cadmium in accordance with SAE AMS-QQ-P-416 or zinc nickel alloy in accordance with ASTM B841 an underplate is optional or Nickel fluorocarbon polymer an underplate is optional or pure electrodeposited aluminum in accordance with MIL-DTL-83488. Screw (Cold rolled steel) - Yellow chromate over zinc in accordance with ASTM B633 or an equivalent industry standard when available. Clip (sheet steel) - Yellow chromate over zinc in accordance with ASTM B633 or an equivalent industry standard when available or aluminum coating. Corrosion resistant steel - Shall be passivated in accordance with SAE AMS2700, type 6. Screws shall be captive in the clip after assembly by the end user and corrosion resistant steel screws shall be used with corrosion resistant steel clips and cold rolled screws shall be used with sheet steel clips. Qualification inspection: The following tests shall be performed on 3 samples (defined below) in accordance with MIL-DTL-24308: Visual examination Shock Vibration Visual examination Test sample: Each sample shall consist of a M24308/25 dash number assembled to the applicable pair of mated connectors with M24308/26-1 or M24308/26-2 attached. Part or Identifying Number (PIN) example: M24308/25 - 6 (Dash number on figure 1). Finish A = Pure electrodeposited aluminum F = Cadmium K = Zinc nickel P = Passivated stainless steel T = Nickel fluorocarbon polymer Z or No suffix = zinc (See MIL-DTL-24308 for disposition of stock) 4 P MIL-DTL-24308/25K w/AMENDMENT 2 DRAFT DATED 29 NOVEMBER 2012 Amendment notations. The margins of this specification are marked with vertical lines to indicate where modifications from this amendment were made. This was done as a convenience only and the Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to evaluate the requirements of this document based on the entire content irrespective of the marginal notations. Referenced documents. In addition to MIL-DTL-24308, this document references the following: MIL-DTL-83488 MIL-DTL-24308/1 MIL-DTL-24308/2 MIL-DTL-24308/3 MIL-DTL-24308/4 ASTM A493 ASTM A555/A555M ASTM A582/A582M ASTM B633 ASTM A666 ASTM B841 SAE AMS2700 SAE AMS-QQ-P-416 CONCLUDING MATERIAL Custodians: Army - CR Navy - EC Air Force - 85 NASA - NA DLA - CC Preparing activity: DLA - CC (Project 5935-2013-025) Review activities: Army - AT, AV, CR4, MI Navy - AS, CG, MC, SH, Air Force - 99 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 . 5