1、MIL-C-8603B 53 7797706 0099023 2 E Po6-q MIL-C-860 B J5 November 1984 SUPrnEDING MIL-C-8603A 30 September 1981 MILITARY SPECIFICATION CLAMPS, LOOP TYPE, AND STRAPS, SUPl?OW This specification is approved for use by all Departments and Agencies of the Department of Defense. l SCOPE 1.1 . Scope. This
2、specification covers support loop clamps, both cushioned and non-cushioned, for the clamping of wire bundles and non-hydraulic tubing (see 6.1). 2. APPLICABLE IjocuMENTs 2.1 Government documents. 2.1.1 Specifications, standards, and handbooks. Unless otherwise specified, the following specifications
3、, standards, and handboqks of the issue listed in that issue of *e Department of Defense Index of Specifications and Standards (DoDISS) specified in the solicitation form a part of this specification to the extent specified herein. SPECIFICATIONS FEDERAI; QQ-A-250/5 - Aluminum Alloy Alclad 2024, Pla
4、te and Sheet QQ-P-416 - Plating, Cadmium (Electrodeposited) PPP-B-566 - Boxes, Folding, Paperboard PPP-B-576 - Boxes, W, Cleated, Veneer, Paper Overlaid PPP-B-585 - Boxes, W, Wirebound I i Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in impro
5、ving this document should be addressed to: - Engineering Specifications and Standards Department (Ccde 93), Naval Air Engineering Center, Lakehurst, TW 08733, by using the self-addressed Standardization Docment Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. F
6、SC 5340 THIS DOCUMENT CONTAINS “2s“ PAGES Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-8603B PPP-B-591 - Boxes Fiberboard, Wood-Cleated PPP-B-601. - Boxes, Wood, Cleated-Plywood PPP-B-621 - Boxes, Fbod, Nailed and Lock-Corner PPP-B-636 - Box
7、es, Shipping, Fiberboard PPP-B-640 - Boxes Fiberboard, Corrugated, Triple-Wall PPP-B-665 - Boxes, Paperboard, Metal aged and Components PPP-B-676 - Boxes Setup MILITARY MIL-P-116 - Preservation, Methods of MIL-S-5059 - Steel, Corrosion-Resistant (18-8) , Plate, Sheet and Strip MIL-H-5440 - Hydraulic
8、 Systems, Aircraft, Types I and II, Design and MI=-5541 - Chemical Conversion Coatings on Aluminum and Aluminum MIL-H-6088 - Heat Treatment of Aluminum Alloys MIL-R-25988 - Rubber, Fluorosilicone Elastomer, Oil-and Fuel-Resistant Installation Requirements for Alloys Sheets, Strips, piblded Parts, an
9、d Extruded Shapes (See Supplement 1 for list of AN, MS, and DS sheet form standards.) MILITARY MIGSTD-105 - Sampling Procedures and Tables for Inspection by MIkS“129 - larking for Shipment and Storage MIL-STD-1188 - Commercial Packaging of Supplies and EQuipment Attributes (Copies of specifications,
10、 standards, handbooks, drawings, and publications required by manufacturers in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting officer:.) 2.2 Other publications. Tfie following documents form a part of this specificati
11、on to the extent specified herein. The issues of the documents which are indicated as DoD adopted shall be of the issue listed in the current DoDISS and the supplement thereto, if applicable. AMERICAN SOCIETY FOR TFSTIW AND MATERIALS (AS?M) ANSI/AS!t“ A380 - Cleaning and STANDARDS INSTITUTE: (ANSI)
12、ANSI-H35.2(M) - Dimnsional Tolerances for Aluminum Mill Products (Applications for copies should be addressed to the American National Standards Institute, 1430 Broadway, New York, N.Y. 10018.) AMs 2491 - Surface Treatment of Polytetrafluoroethylene, Bonding AMS 3209 - Chloroprene Rubber, Weather Re
13、sistant, 65-75 AMs 3215 - Nitrile Rubber, Aromatic Fuel Resistant, 65-75 AMS 3303 - Silicone Rubber, General Purpose, 55-65 AMs 5510 - Steel Sheet, Strip, and Plate, Corrosion and Heat Resistant 18 Cr - 10.5 Ni - 0.40 Ti (SM 30321) Solution Heat Treated W “2242 - Tblerances, Metric, Corrosion and He
14、at Resistant Steel, Iron Alloy, Titanium, and Titanium Alloy Sheet, Strip, and Plate. Preparation (Applications for copies should be addressed to The Society of Automotive Engineers, 400 Commnwealth Drive, Warrendale, PA 15096.) 2.3 Order of precedence. In the event of a conflict between the text of
15、 this specification and the references, other than specification sheets cited herein; the text of this specification shall take ecedence. 3. REQUI- 3.1 AN and DS and NS standards. The individual item requirements shall be as specified herein and in accordance with the applicable AN and DS and MS sta
16、ndards. In the event of any conflict between the requirements of this specification and the AN and DS and MS standards, the latter shall govern. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.2 Mat,er ial. 3.2.1 Band. The bands shall be fabricat
17、ed of the following materials as specified (see 3.1) . 3 . 2.1.1 Aluminum alloy. Aluminum alloy shall be Alclad 2024-0 in accordance with QQ-A-250/5. 3.2.1.2 Steel. Steel shall be AIS1 1010, cold-rolled, temper No. 4, in accordance with ASTM AlO9. 3.2.1.3 Corrosion-resistant steel. Corrosion-resista
18、nt steel shall be Type 302 in accordance with MIL-S-5059 or Type 321 in accordance with W 5510 as specified in the individual s;?ecification sheets. 3.2.2 =$lion. me cushions shall be fabricated of the following materials as spcified (see 3. I) 3.2.2.1 Nitrile rubber. Nitrile rubber shall be in acco
19、rdance with ANS 3215 and the ozone resistance requirements specified herein (see 4.5.3). The colors shall be solid yellow. 3.2.2.2 Chloroprene rubber (neoprene). Chloroprene elastomer shall conform to AMs3209 and the ozone resistance requirements as specified herein. The color shall be black with a
20、blue identifier. - Extruded material shall be identified by a blue stripe extending lengthwise along both edges of the cushion. The stripe width shall be equal to the width of the cushion edge. Molded material shall be identified by a blue area at the wedge end. The blue area shall be on one or both
21、 edges of the cushion and may include the wedge and shall have a minim length of .L25 inch to a maximum of .y50 inch. The blue area shall be located within an area not to exceed 1.500 inch or 50% of the total cushion length, whichever is smaller, when measured from the wedge end. In no case shall th
22、e blue area extend beyond 50% of the cushion length. me material used for the blue identifier shall be the same as the cushion material except colored blue. Inking or other surface coloring methods shall not be used. 3.2.2.3 Silicone rubber, Silicone rubber shall be in accordance with AMs 3303, exce
23、pt the minimum tear strength shall be 100 lbs/inch (17.5 kN/m) when tested as specified in 4,S.S. The color shall be solid (pigmented) white. 3.2.2.4 Fluorosilicone rubber. Fluorosilicone rubber shall be in accordance with MIL-R-25988, Type II, Class 1, Grade 60. The color shall be solid blue . 3.2.
24、2.5 Ethylene propylene rubber. Ethylene propylene rubber shall have the properties specified in Table 1 when tested as specified in 4.5.6. The color shall be solid purple. Unless otherwise specified, the results of the tests shall be the average (arithmetic mean) of the results of five specimens. Th
25、e property measurements shall be performed immediately after removal from the specified inunersion bath. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-Bb03B 53 W 7777706 0077025 T W I O MIL-C-8603B 3.2.2.5.1 Ethylene propylene campression s
26、et. When tested as specified in paragraph 4.5.6.7, the average compression set value of three specimens shall not exceed 70 percent. 3.2.2.6 J3Sytetrafluoroethylene (PTFE). PTE% material shall be in accordance with AS?M D1457 Typ I. The color shall be solid brown. TABLE I. PROPERTIES OF PROPYLEN3 RU
27、BBER. Hardness Durometer “A“ Tensile strength- psi (kPA) Elongation - % Specific gravity Volume change - % REQUIRED ORIGINAL PFOPrnIES 65-75 2000 (13,790) Min 500 Min 200 (35) Min As tested As measured r ORIGINAL PF AFTEX- HMRAULIC FLUID IMMERSION (SKYDROL 500B) 22 Hlts 275% (135OC) 45 Min 1000 (689
28、5) Min 375 Min 120 (21) Min - 30% Increase PEIITIES AFTER HEAT AGING 70 HRS 275% (135OC) 85 “ax 1600 (5516) P4in 350 Min 160 (28) Min +2% Change 10% Decrease 3.3 Design and construction. 3.3.1 Dimensions. Dimensions and tolerances shall conform to the dimensional requirements of the applicable speci
29、fication sheet. 3.3.2 Forminq. Forming of the 90 bend foot and offset in aluminum bands shall be performed in the annealed condition. Curling (sizing) my be done subsequent to heat treatment. 3 . 3.2.1 Curlinq. me clamps shall be curled through a minimum of 270 of the mandrel circumference. The curv
30、e of the band material, due to the slitting operation, shall be oriented away from the clamp inner diameter. Normal springback of the clamp from the curled position is acceptable. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-Bb03B S3 m 999
31、9906 0079026 L O MIL-C-8603B . 3.4 Heat treatment, 3.4.1 Aluminum alloy. Alumunim alloy bands shall be heat treated to T42 temper in accordance with MIL-H-6088. 3 . 5 Finish , 3.5.1 Aluminum alloy. Aluminum alloy bands shall be finished in accordance with MIL-5541, Class U. 3.5.2 Steel, Steel bands
32、shall be cadmium plated in accordance with QQ-P-416r Type I, Class 2 (7.6 pm) . 3.5.3 Corrosion-resistant steel. Corrosion-resistant steel shall h cleaned and descaled in accordance with ASTM A-380. 3.5.4 Polytetrafluoroethylene (PTFE) . Cushions fabricated frm PTEE shall be sodium treated in accord
33、ance with the surface treatment paragraphs of AMs 2491 to reduce the materials lubricity. All other paragraphs of AMs 2491 shall not apply. 3.6 Performance. The clamps shall meet the performance requirements specified herein when tested in accordance with Section 4. 3.7 Identification marking. Each
34、clamp shall be marked with the amplete AN, MS or DS patt number in accordance with the applicable drawings. The markings shall be placed on the clamps outer surfacel and shall be visible with the cushion in place. 3.8 Wedge bond integrity (vulcanized wedges only). Clamp cushions o all types of mater
35、ials, requiring a vulcanized wedge, as specified in the individual specification sheet, shall be tested in accordance with 4.5.7. Separation of the wedge from the extruded cushion, by failure of the bonded area, shall be cause far rejection of the clamp. Tearing of the wedge or cushion, without fail
36、ure of the bonded area, shall not be cause for rejection. 3.9 Tolerances (metric) . Tblerances on metrically dimensioned band materials shall be in accordance with the following: Corrosion-resistant steel - AI43 “2242 Aluminum alloy - ANSI H35.2 (M) 3.10 Workmanship. Clamps shall be processed in suc
37、h a manner as to insure that the clamps are of uniform quality. The bands shall have a smooth finish and shall be free of burrs, slivers, sharp edges or other defects which would adversely effect life, serviceability and appearances. Cushion material shall be uniform in quality, clean, smooth and fr
38、ee frcnn tears, voids and imperfections detrimental to appearance and performance. The wedge shall be firmly attached and free from voids and gaps in the bonded area. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-Bb03B 53 m 77777Ob 0077027
39、3 m MIL-C-8603B 4. QUAtIIY ASSURANCE PE#IVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified in the contract or pur
40、chase order, the contractor may use his own or any other facilities suitable for the performance of the inspection require- ments specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in the specification where such insp
41、ections are deemed necessary to assure supplies and services conform to prescribed requirements. 4.2 Classification of inspection. The inspection requirements specified herein are classified as follows: a. Material inspection (see 4.3) . b. Quality conformance inspection (see 4.4) . 4.3 Material ins
42、pection. Material inspection shall consist of certifica- tion supported by data verifying that the materials used in fabricating the clamps are in accordance with the requirements of 3.2 prior to such fabrication. 4-3.1 Material certification. Records of tests showing conformance to the applicable m
43、aterial specifications (3.2) for the band and cushion shall be made available to the clam; manufacturer for each lot of material. The clamp manu- facturer shall require from each material supplier (band and cushion) a document certifying conformance to the applicable material specification and other
44、 parameters specified in the applicable paragraph. 4.4 Quality conformance inspection. Quality conformance inspection shall consist of the tests and inspection specified in Table II, conducted in accord- ance with 4.5. Tfie Quality bnformance Test Report shall be in accordance with 6.2.1. 7 Provided
45、 by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-C-,8603B 53 W 9777706 0099028 5 MIGC-8603B TABLE II. QUALITY CONEOlWWE INSPECPION. INSPECTION FEQUIHEMENT 1 PARAGRAPH Group A Examination Closure test Group B Nitrile ozone resistance Chloroprene ozone resi
46、stance Silicone tear strength Ethylene Propylene hardness Ethylene Propylene tensile strength Ethylene Propylene elongation Ethylene Propylene tear strength Ethylene Propylene specific gravity Ethylene Propylene volume change Ethylene Prowlene compression set Wedge bond integrity Y 3.3.1 3.2.2.1 3,2
47、.2.2 3.2.2.3 3.2.2.5 3.2.2.5 3.2.2.5 3.2.2.5 3.2.2.5 3.2.2.5 3.2.2.5.1 3.8 TEST “IOD PARAGlWH 4.5.1 4.5.2 4.5.3 4.5.4 4.5.5 4.5.6.1 4.5.6.2 4.5.6.3 4.5.6.4 4.5.6.5 4.5.6.6 4.5.6.7 4.5.7 4.4.1 Inspection lot. An inspection lot shall consist of clamps for a particular size, and material, produced unde
48、r essentially the same manufactur- ing conditions and presented foi inspection at the same time. 4.4.2 Rejected lots. If an inspection lot is rejected, the contractor may rework it to correct the defects, or screen out the defective units, and resubmit for reinspection. Resubmitted lots shall be ins
49、pected using tightened inspection. Such lots shall be separate from new lots, and shall be clearly identified as reinspected lots, 4.4.3 Sampling for group A inspection. Sampling shall be in accordance with MILrSTD-105, inspection level II, with an Acceptable Quality Level (AQL) of 1.0 percent defective for major defects. For minor defects, Inspection level I with an AQL of 4.0 percent defective shall apply. 8 Provided by IHSNot for ResaleNo reproduction o
