1、AMSC N/A FSC 6140 INCH-POUND MIL-PRF-81757/1E 11 September 2013 SUPERSEDING MIL-PRF-81757/1D 1 March 1999 PERFORMANCE SPECIFICATION SHEET BATTERY, STORAGE, AIRCRAFT, NICKEL-CADMIUM, CELL This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirem
2、ents for acquiring the product described herein shall consist of this specification sheet and MIL-PRF-81757. FIGURE 1. Dimensions and configuration for cells (PINs M81757/1-2, M81757/1-4, and M81757/1-6).Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-
3、,-MIL-PRF-81757/1E 2 TABLE I. Parameter requirements for cells (PINs M81757/1-2, M81757/1-4, and M81757/1-6). PART OR IDENTIFYING NUMBER (PIN) DIMENSIONS IN INCHES (SEE FIGURE 1) TERMINAL POST (SEE FIGURE 1) CAPACITY AMP HRS (MIN) WEIGHT POUNDS (MAX) A +.015 -.025 B +.015 -.025 C .010 D .020E Ref F
4、Max THREAD INTERNAL NO THREADDEPTHINCH (MIN) OTHER THAN INITIAL (RATED) INITIAL M81757/1-2 1.065 2.414 .395 6.5256.2806.388 8-32 UNC-3B.466 10.0 12.5 1.30 M81757/1-4 1.070 3.175 .650 7.8697.6067.716 10-32 NF-3B.500 20.0 25.0 2.30 M81757/1-6 1.375 3.130 .540 8.9328.6788.838 10-32 NF-3B.500 30.0 37.5
5、3.40 FIGURE 2. Washers (PINs M81757/1-7A and M81757/1-7B). TABLE II. Dimensions for washers (PINs M81757/1-7A and M81757/1-7B). PART OR IDENTIFYING NUMBER (PIN) DIMENSIONS IN INCHES (SEE FIGURE 2) A .030 B .010 C .020 D .030 E .010 M81757/1-7A (Washer) .500 .178 .161 .400 .062 M81757/1-7B (Washer) .
6、750 .203 .273 .600 .062 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-81757/1E 3 FIGURE 3. Belleville springs (PINs M81757/1-8A and M81757/1-8B). TABLE III. Dimensions for Belleville springs (PINs M81757/1-8A and M81757/1-8B). PART OR IDENT
7、IFYING NUMBER (PIN) DIMENSIONS IN INCHES (SEE FIGURE 3) A .030 B .010 C .020 D .005 E .005 M81757/1-8A (Belleville spring) .500 .178 .161 .011 .028 M81757/1-8B (Belleville spring) .561 .203 .179 .025 .028 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,
8、-,-MIL-PRF-81757/1E 4 FIGURE 4. Terminal screws (breakaway head) (PINs M81757/1-9 and M81757/1-10). TABLE IV. Parameter requirements for terminal screws (PINs M81757/1-9 and M81757/1-10). PART OR IDENTIFYING NUMBER (PIN) A B C D E F G REF (INCH) .002 (INCH) MAX (INCH) .004 (INCH) HEAD BREAK TORQUE (
9、IN LBS) THREAD FULL LENGTH (INCH) THREAD EXTERNAL NO M81757/1-9 .766 .112 .466 .164 38 Min 48 Max .400 Min 8-32 UNC-3A M81757/1-10 .806 .128 .500 .188 55 Min 72 Max .440 Min 10-32 NF-3A Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-81757/1E
10、 5 REQUIREMENTS: 1. Part or identifying number. The part or identifying number (PIN) of the items covered by this specification sheet shall be as shown below. Each PIN within a category differs in terms of dimensions and other parameters from the other PINs in that category. Each item shall conform
11、to the requirements of the indicated figures and tables. a. Cells. PINs M81757/1-2, M81757/1-4, and M81757/1-6 on figure 1 and in table I. b. Washers. PINs M81757/1-7A and M81757/1-7B on figure 2 and in table II. c. Belleville springs. PINs M81757/1-8A and M81757/1-8B on figure 3 and in table III. d
12、. Terminal screws. PINs M81757/1-9 and M81757/1-10 on figure 4 and in table IV. 2. The cell fill opening shall accommodate and interface with all installation features of the vented filler cap supplied in accordance with 3.7.11.6 herein. This shall include: a. The mechanisms for attaching (tightenin
13、g and locking) and removing the cap. b. The methods used for creating a seal (air and liquid) at the fill opening (see 3.7.11.7 and 3.10.13 of the general specification). 3. The roughness of the surface finish of the electrical contact area of each terminal post shall be not greater than 63 microinc
14、hes high and not greater than 0.02 inch wide. Waviness shall be not greater than 0.005 inch high. 4. MIL-PRF-81757 variance. The items shall comply with MIL-PRF-81757 except as follows. 4.1 Modify the following paragraph: 3.7.11.6 Vented filler cap. Insert after the first sentence: “The particular M
15、IL-PRF-81757/2 vented filler cap (such as PIN M81757/2-1, M81757/2-2) to be installed on the cell shall be as follows: “a. Unless otherwise indicated, when a cell is purchased separately from a battery, install the M81757/2-1 vented filler cap (see 6.2). “b. When a cell is supplied as a component in
16、stalled in a MIL-PRF-81757 battery, install the vented filler cap that is required by the batterys specification sheet.“ Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-81757/1E 6 4.2 Add the following paragraph: “3.7.11.9 Cell fasteners. Ter
17、minal screws, washers, and Belleville springs are not required for cells that are procured separately from complete batteries. These items shall meet the requirements of 3.10.2 and 3.10.19 (see 6.10.1). In addition, the tensile strength of the terminal screws (PINs M81757/1-9 and M81757/1-10) shall
18、be 130,000 20,000 pounds per square inch (psi) as determined by subjecting the items to 4.5.31.“ 4.3 Modify the following paragraphs: 3.8.3.2 Cells. Insert as a new first sentence: “The cells terminal polarity markings shall be located as shown on figure 1 of the specification sheet.“ 3.8.5 Cell ide
19、ntification. Insert after the third sentence: “The cells identification markings shall be located as shown on figure 1 of the specification sheet.“ 4.4 Add the following paragraph: “4.5.31 Head breakaway torque test for M81757/1-9 and M81757/1-10 terminal screws. Secure the terminal screws body in a
20、 fixed position and subject the terminal screws head to a torque not greater than 20 inch-pounds. Gradually increase the applied torque until the terminal screws head separates from the terminal screws body. The applied torque (inch-pounds) at separation (breakaway) shall comply with the head breaka
21、way torque requirement specified in 3.7.11.9 and table IV of the specification sheet.“ 4.5 Modify the following paragraphs and table: 6.2.d Acquisition requirements. Insert after the first sentence: “Cells must be ordered in multiples of 19 cells. Cells must be packaged in groups of exactly 19 cells
22、. Each cell within a 19 cell group must be part of the same inspection lot and bear the same date/lot code (see 3.8.2). Specify the MIL-PRF-81757/2 vented filler cap to be used (see 3.7.11.6 as modified herein).“ 6.10.1 Corrosive nature of potassium hydroxide. Add as a new last sentence: “Components
23、 manufactured from stainless steel 303 have passed the qualification tests in the past.“ 6.15 PIN supersession data. Delete text and substitute: “Cell PINs M81757/1-2, M81757/1-4, and M81757/1-6 supersede the cells shown in tables IX and X.“ Provided by IHSNot for ResaleNo reproduction or networking
24、 permitted without license from IHS-,-,-MIL-PRF-81757/1E 7 TABLE IV. Qualification inspection of components and materials. For “Metal parts,“ add the salt fog test (3.10.19 and 4.5.19) and the head breakaway torque test for M81757/1-9 and M81757/1-10 terminal screws (3.7.11.9 and 4.5.31). TABLE IX.
25、Battery and cell supersession data. Delete the title and contents and substitute the following table: TABLE IX. M81757/1-2, M81757/1-4, and M81757/1-6 supersession data (see notes). Superseding PIN (cell) Superseded PINs (cells) M81757/1-2 BB-599 MS27307-1 MS27307-4 MS90321-66 MS90321-72 M81757/1-1
26、M81757/1-4 MS27307-2 MS27307-5 MS90321-68 MS90321-74 MS90321-77 MS90321-78 M81757/1-3 M81757/1-6 MS27307-3 MS27307-6 MS90321-69 MS90321-75 M81757/1-5 NOTES: 1. When purchasing for use by military departments that use only limited-repair nickel- cadmium batteries, a MIL-PRF-81757 battery shall be sub
27、stituted in accordance with the following for each quantity of 19 or fewer cells. M81757/1-2 cell - Substitute battery M81757/7-3 or M81757/1-4 cell - Substitute battery M81757/8-5, M81757/11-3, whichever is the correct design for the application. M81757/1-6 cell - Substitute battery M81757/9-3 or M
28、81757/13-1, whichever is the correct design for the application. 2. All variations of each MS90321 cell are included; for example, -66, -66W, and -66R.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-81757/1E 8 Replace TABLE VIII. Group C insp
29、ection with the following: Test Requirement paragraphs Test paragraph Sample 1. Inspection for Damage 3.10.1 4.5.1 All 2. Visual and Mechanical 3.10.6 3.6 thru 3.8 Table II 4.5.6 All 3. Dimensions and Weight (weight only) 3.10.8 3.10.9 4.5.8 All 4. Initial Capacity Discharge 3.10.14 4.5.13 All 5. Cy
30、cling Test 3.10.23 4.5.23 1 6. Humidity and Charge Retention 3.9 3.10.15 4.5.14 2 7. Altitude 3.9 3.10.18 4.5.18 3 8. Temperature Rise and Float 3.9 3.10.9 3.10.24 4.5.24.2 3 9. Medium-Rate, Operating Position 3.9 3.10.21 4.5.21 2 10. Internal Air Pressure Test 3.9 3.10.26 4.5.26 All Provided by IHS
31、Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-81757/1E 9 4.6 Add the following table: TABLE X. Superseded (replaced) cells. Superseded PIN (cell) General or procurement specification of superseded PIN Superseding PIN (cell) Superseded PIN (cell) General o
32、r procurement specification of superseded PIN Superseding PIN (cell) BB-599/A - M81757/1-2 M81757/1-5 MIL-PRF-81757 M81757/1-6 BB-601 - M81757/1-4 MS90321-66 MIL-B-8565 M81757/1-2 B-600/A - M81757/1-6 MS90321-68 MIL-B-8565 M81757/1-4 MS27307-1 MIL-B-26220 M81757/1-2 MS90321-69 MIL-B-8565 M81757/1-6
33、MS27307-2 MIL-B-26220 M81757/1-4 MS90321-72 MIL-B-8565 M81757/1-2 MS27307-3 MIL-B-26220 M81757/1-6 MS90321-74 MIL-B-8565 M81757/1-4 MS27307-4 MIL-B-26220 M81757/1-2 MS90321-75 MIL-B-8565 M81757/1-6 MS27307-5 MIL-B-26220 M81757/1-4 MS90321-77 MIL-B-8565 M81757/1-4 MS27307-6 MIL-B-26220 M81757/1-6 MS9
34、0321-78 MIL-B-8565 M81757/1-4 M81757/1-1 MIL-PRF-81757 M81757/1-2 MS90321-79 MIL-B-8565 M81757/1-4 M81757/1-3 MIL-PRF-81757 M81757/1-4 NOTE: All variations of each MS90321 cell are included; for example -66, -66W, and -66R. Provided by IHSNot for ResaleNo reproduction or networking permitted without
35、 license from IHS-,-,-MIL-PRF-81757/1E 10 Referenced documents: In addition to MIL-PRF-81757, this document references the following: MIL-PRF-81757/2 5. Changes from previous issue. The margins of this specification are marked with vertical lines to indicate where changes from the previous issue wer
36、e 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 and relations
37、hip to the last previous issue. Custodians: Preparing activity: Army - CR Navy - AS Navy - AS Air Force - 11 Agent: Navy - SH Review activities: (Project 6140-2013-004) Army - AV Air Force - 71, 99 DLA - CC, GS Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
