1、n MIL-T-23326A 40 9999906 OqL6439 2 :$9+ 9 P W1IA-T-23326A( CH), 5 28 December 1984-. .J _-I-_- -_- -.-. SUPERSEDING M IL-T- 2 3 3 2 b ( SHIP C ) 10 April 1963 (See 5.4) MILITARY SPECIFICATION THIMBLE, SYNTHETIC ROPE This specification is approved EtIr use by the Naval Sea Systems Command, Departmen
2、t of the Navy, and is available for use by all. Departments and Agencies of the Department i Defense. 1. SCOPE 1.1 -c- Scope. This Specification covers commercial thimbles used with s yri ehe tic rope. - 1.2 Classification. Thimbles shall be the sizes used with 1-1/8- to 13-inch circumference synthe
3、tic rope shown on figure 1, as specified (see b.2). -I- 2. APPLICABLE DOCUEIENTS 2.1 Government documents. -II_-*- 2.1.1 Standards. Unless otherwise specified, the Eollowing standards o the issue listed in that issue of the Department of Defense Index of Specifica- tions and Standards (DoDISS) speci
4、fied in the solicitation form a part of this specification to the extent specified herein. I_-.CI- STANDARDS MILITARY MIL-STD-105 - Sampling Procedures and Tables for Inspection MIL-STD-649 - Aluminum and Magnesium Products, Preparation by Attributes. for Shipment and Storage. (Copies of standards r
5、equired by contractors in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting officer.) Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document shou
6、ld be addressed to: Commander, Naval Sea Systems Command, SEA 5523, Department of the Navy, Washington, DC 20362 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. Obtained From GLOBAL ENGINEERING DOCUMENTS 262
7、5 Hicko Ct. Santa Ana CA 92707 8 (714354%98?0: (800)8&-7179 FSC 4030 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-t & 0436440 9 E MIL-T-2 3 3 26A( SU) 5 a 2.2 Other publications, -I- The following documents form a part of this The issues of the do
8、cuments specificatin to the extent specified herein. which are indicated as DoD adopted shall be the issue listed in the current DoDLSS and the supplement thereto, if applicable. ASTM B 148 - Aluminum-Bronze Sand Castings. (Application for copies should be addressed to ASTM, 1916 Race Street, Philad
9、elphia, PA 19103.) (Industry association specifications and standards are generalLy available for reference from libraries. They are also distributed ainong technical groups and using Federal agencies. ) 2.3 - Order of_erecedence. - In the event of a conflict between the text of this specification a
10、nd the references cited herein, the text of this specifi- cation shali take precedence. 3. REQUIREMENTS 3,l I- Design. - The thimble shall be a one-piece aluminum bronze casting conforming to ASTM B 148, grade D, nonheat treated. 3.2 -I_- Thimble strength. Thimbles shall be of sufficient strength to
11、 pass the tests specified in 4.4. 3.3 -LI- Dimensions. Thimbles shall conform to the dimensions shown 011 igure 1, O as specified (see 6.2). 3.4 -I_cI_- Identification. Each thimble shall. be marked for identification by giving the rope size circumference and the wording “For Synthetic Rope“ as show
12、n on figure 1 (see 6.2 and 6.3). Figures shall be depressed in the casting. Rope circumference may be shown on one side, and the lettering on the other side, when the surface area does not permit all figures on one side. 3.5 -a- Workmanship. The surface of the thimble shall be free from fins and bur
13、rs, to prevent snagging of the rope. Groove surfaces for the rope shall be a roughness no greater than 125-microinch finish. Edges shall be rounded full 40 QUALITY ASSURANCE PROVISIONS 4.1 Responsibility - for inspect&. Unless otherwise specified in the contract or purchase order, the contractor is
14、responsible for the performance of all inspection requirements as specified herein. fied in the contract or purchase order, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The G
15、overnment reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. Except as otherwise speci- a 2 Provided by IHSNot for ResaleNo reproduction or networking perm
16、itted without license from IHS-,-,-f 4.2 Sampling. 4.2.1 - Lot. Thimbles of the same size offered for delivery at the same time shall be considered a lot. 4.2.2 shall be selected from each lot in accordance with MIL-STD-105, for examination and tests, as specified in 4.2.2.1 and 4.2.2.2. Sampling fo
17、r examination and tests. A random sample of thimbles 4.2.2.1 Sampling for examination. A random sample of thimbles shall be selected from each lot with normal inspection Acceptable Quality Level, (AQL) 2.5, for the examination specified in 4.3. 4.2.2.2 Sampling for strength testing. A sample of thim
18、bles shall be randomly selected with an inspection level S-4, (AQL) 0.65, for tests specified in 4.4. 4.3 Examination. Each of the sample thimbles selected in accordance with 4.2.2 shall be visually and dimensionally examined to verify compliance with this specification. Examination shall be conduct
19、ed as specified in table I. Any thimble in the sample containing one or more defects shall not be offered for delivery. the acceptance number for that sample, as specified in 4.2.2.1, it shall be cause for rejection of the lot represented by the sample. If the number of defective thimbles in any sam
20、ple equals or exceeds TABLE I. Classification of defects. Categories Critical: Major: 10 1 102 103 104 105 106 Minor: Defects Thimble does not pass load tests. Thimble material, not as specified (see 3.2). Dimensions not in conformance with figure 1 within Groove for rope does not have the specified
21、 surface Thimble edges sharp and not rounded Identification figures cast in thimble are not Casting is porous and has imperfections. specified tolerances. finish (see 3.5). as specified (see 3.5). iegible . None . 4.4 Strength tests. Sample thimbles shall be tested by the application of loads specif
22、ied in table 11. cracks as a result of the strength test. If the number of thimbles equals or exceeds the rejection number specified in 4.2.2.2, the lot shall be rejected. There shall be no permanent deformation or 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without licens
23、e from IHS-,-,-MIL-T-23326A(SH) TABLE II. Loading for strength - tests. Synthetic rope circumference (Inches) 1-1/8 - 1-1/4 1-1/2 - 1-3/4 2 - 2-1/4 2-1/2 - 2-3/4 3 3-1/2 - 3-3/4 4 4-1/2 5 5-1/2 6 6-1/2 7 8 9 10 Test load (Pounds ) 4,900 7,700 12,600 17,600 24,200 36,300 50,600 62,700 74,800 89,000 9
24、9,000 121,000 150,700 187,000 222,000 41,200 4.4.1 Test shall be performed in a testing machine using synthetic rope . to simulate actual working conditions. 4.5 Inspection of packaging. _I Sample packages and packs, and the inspection of the preGrvation-packaging, packing and marking for shipment a
25、nd storage shall be in accordance with the requirements of section 5 and the documents specified therein . 5. PACKAGING (The preparation for delivery requirements specified herein apply only for direct Government acquisition.) 5.1 Packaging, packing and marking. Thimbles shall be packaged level A or
26、 C, packed level A, B, or C as specified (see 6.2) and marked in accordance with MIL-STD-649, as applicable for castings. 6. NOTES 6.1 Intended us. The thimbles covered by this specification are intended for use with synthetic rope, with the exception of emergency towing application. 4 Provided by I
27、HSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. MIL-T-2332bA 40 E 99999Ob 0416443 4 MIL-T-23326A( SH) 6.2 Ordering data. Acquisition documents should specify the following: (a) Title, number, and date of this specification. (b) Size and quantity af thimbles (se
28、e 1.2 and 3.3). (c) Identification markings required (see 3.4). (d) Number of thimbles per shipping container, if desired. (e) Levels of packaging and packing and marking requirements, (see 5.1). 6.3 - Identification. In marking the thimble (see 3.4), the wording “For Plastic Rope“ maybeid until the
29、 tooling or pattern is required to be replaced. 6.4 Changes from previous is- Asterisks are not used in this revision to identify changes with respect to the previous issue, due to the extensiveness of the changes. Preparing activity: Navy - SH ( Pro j ect 4030-NO 1 2 ) 5 Provided by IHSNot for Resa
30、leNo reproduction or networking permitted without license from IHS-,-,-9- MIL-T-2332bA YO 96ol1bYY4 bx .c MIL-T-23326A(SH) WRiTINJG /% t P RES S L D c G .I Rope diaa. Rope (reference) circum. Z/A A/B - l/C I/D Z/E 318-7116 1-118-1-114 7/16 13/16 9/16 314 112 112-9116 1-112-1-314 112 I 11/16 29/32 9/
31、16 I I 13116-15/16 2-112-2-314 518 1-7/16 1-1/16 1-318 314 1 3 13/16 1-9/16 1-3/16 1-9/16 1 1-118-1-114 3-112-3-314 151 16 1-718 1-71 16 1-27/32 1-11 16 1-5/16 4 1-1/16 2 1-112 1-15/16 1-118 1-112 4-112 1-3/16 2-114 1-11/16 2-5/32 1-3/16 1 1-518 I 5 I 1-51161 2-7/16 11-13/16 I 2-5/16 I 1-114 rppl-3/
32、4- 1 5-112 I i-7/61 2-518 I 2 12-17/32 11-5/16 I 2 6 1-518 2-718 2-114 1-13/16 1-318 2-118 6-112 1-314 3-1/16 2-318 3 1-7/16 I 2-114 I 7 1i-i5/i61 3-114 I 2-112 I 3-118 I 1-112 I 2-518 I 8 I 2-3/1613-11/161 2-7/81 3-518 1 1-518 I 3 9 2-7/16 4-118 3-114 4-118 1-314 3-114 10 2-11/16 4-9/16 3-112 4-112
33、 1-718 *. s ECT: “A-A SECT. 8-0 Anchor Approx ehackle weight - 2/F 216 2/B 2l.T 2/K 2/L size pounds 112 2-1/16 518 3/16 3/16 1 318 0.3 518 2-318 718 114 7/32 1-1/16 7/16 45 c a 314 3-118 ,1 9/32 9/32 1-118 9/16 .6 L3/16 3-314 1-3/16 318 5/16 1-3/16 518 .9 718 4-114 1-318 7/16 13/32 1-114 314 1.6 1 5
34、-1/16 1-9/16 112 15/32 1-5/16 718 1.9 1 5-112 1-314 112 17/32 1-318 1 2.6 .-118 6-114 1-718 . 112 518 1-7/16 1 3.2 .-U4 I 6-314 I 2-1/16 I 1/2123/32 1 1-112 I 1-118 I 4.8 I .-3/8 7-318 2-5/16 314 13/16 1-518 1-114 7.8 .-112 8-318 2-112 1 29/32 1-11/16 1-114 8.5 .-SI8 9 2-11/16 1 1 1-314 1-318 9.5 -3
35、14 9-318 2-718 1 1-118 2 1-112 10.6 .-718 110-518 I 3-114 I 1 Ii-/4 I 2-118 I 1-518 I 18.5 I 1-114 13-118 4 1-112 1-11.2 2-112 2 38.0 .!.I Tolerance on dimensions C and D +O percent. 21 Tolerance on all other dimensions + 8 percent. SH 7111 -3 FIGURE 1. Thimble sizes and dimensions. - - -A 6 r?rU.S. GOVERNMENT PRINTING OFFICE: 1986 - 606-038/20426 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
