1、Designation: F 1836M 09An American National StandardStandard Specification forStuffing Tubes, Nylon, and Packing Assemblies (Metric)1This standard is issued under the fixed designation F 1836M; the number immediately following the designation indicates the year oforiginal adoption or, in the case of
2、 revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1 This specifica
3、tion covers the general requirements fornylon stuffing tubes and packing assemblies. Nylon stuffingtubes are intended for making electric cable penetrations inmarine shipboard enclosures for electrical equipment. Thefollowing types are suitable for both thin-wall enclosures up to5mm(316 in.) thick a
4、nd thick-wall enclosures, bulkheads, anddecks of 5 to 19 mm (316 to34 in.) thick.1.2 This specification does not cover metal stuffing tubes.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard t
5、o establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to its use.2. Referenced Documents2.1 ASTM Standards:2D 2000 Classification System for Rubber Products in Auto-motive ApplicationsD 4066 Classification System for Nylon Injection and
6、 Ex-trusion Materials (PA)2.2 NEMA Standards:Standard 250 Enclosures for Electrical Equipment (1000 VMax)32.3 ASME Standard:ASME B1.1 Unified Inch Screw Threads (UN and UNRThread Form)42.4 IEC StandardStandard 68-2-6 Environmental TestingPart 2: TestsTestFC: Vibration (Sinusoidal) Sixth Edition53. T
7、erminology3.1 Definitions of Terms Specific to This Standard:3.1.1 nylon stuffng tube, na marine electrical fitting usedfor the sealing of cable penetration into shipboard enclosureswhile maintaining or exceeding the degree of protection forwhich the enclosure is rated.3.1.2 packing assembly, nthe c
8、ompressible insert for thenylon stuffing tube. It consists of one neoprene bushing andthree nylon washers.3.1.3 enclosure, nan electrical panel, cabinet, junctionbox, light fixture, electrical equipment, control box, or panel.4. Classification4.1 Nylon stuffing tubes shall be of the following types
9、(seeFig. 1):4.1.1 Type 1straightUnified Form Thread.4.1.2 Type 290Unified Form Thread.4.1.3 Type 3NPTAmerican Standard Pipe Thread.4.1.4 Type 4YUnified Form Thread.5. Ordering Information5.1 Orders for stuffing tubes under this specification shallinclude the following:5.1.1 Type (see 4.1).5.1.2 Part
10、 number (see Table 1).5.1.3 Packing assembly size (see Fig. 2 and Table 2).5.1.4 The O-ring included in the stuffing tube assembly hasa finite shelf life. If the stuffing tube assembly is used after theshelf life has expired, the O-ring should be replaced, using theappropriate size listed in Table 1
11、.5.1.5 ASTM Part Number. The part number comprises theASTM specification number, type designator and assigneddash number as shown in the following example:1This specification is under the jurisdiction of ASTM Committee F25 on Shipsand Marine Technology and is the direct responsibility of Subcommitte
12、e F25.10 onElectrical.Current edition approved March 1, 2009. Published March 2009. Originallyapproved in 1997. Last previous edition approved in 2007 as F 1836M - 97(2007).2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For A
13、nnual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from National Electrical Manufacturers Association (NEMA), 1300N. 17th St., Suite 1752, Rosslyn, VA 22209, http:/www.nema.org.4Available from the International Electrotechnical
14、Commission, 3 rue deVarembe, Case postale 131, CH-1211, Geneva 20, Switzerland.5Available from American Society of Mechanical Engineers (ASME), ASMEInternational Headquarters, Three Park Ave., New York, NY 10016-5990, http:/www.asme.org.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C7
15、00, West Conshohocken, PA 19428-2959, United States.F 1836M Type-3 -002ASTMDesignatorPart TypeDesignatorSizeDesignatorExample: F 1836M Type-3-002: Size 2 NPT stuffing tube (see Fig. 1).6. Materials and Manufacture6.1 Materials:6.1.1 Polyamide (nylon) molding plastic material shall beGroup 1, Class 8
16、, Grade 1 in accordance with SpecificationD 4066.6.1.2 Synthetic rubber (neoprene) shall be in accordancewith Classification D 2000, M2, BC, 410, A14, B14, C12, andF19.6.2 Manufacture:6.2.1 Molded nylon parts, such as body, washers, locknut,and cap, shall meet the requirements specified herein.6.2.2
17、 Threads shall be unified form UN 2A or 2B or taperpipe thread (NPT) as specified in ASME Standard B1.1.6.2.3 Neoprene parts, such as bushing and plug, shall meetthe requirements specified in Classification D 2000, and whenassembled in a stuffing tube, shall meet the performancerequirements specifie
18、d herein.7. Other Requirements7.1 Performance Requirements:FIG. 1 Stuffing Tube TypesF 1836M 0927.1.1 Vibration resistanceWhen stuffing tubes are testedas specified in 9.1, there shall be no evidence of cracking orloosening of parts.7.1.2 RuggednessWhen stuffing tubes are subjected to amechanical ab
19、use test as specified in 9.2, there shall be nocracking, breaking, distortion, or damage to the sample.7.1.3 Effectiveness of sealWhen stuffing tubes are testedas specified in 9.3, there shall be no evidence of leakagethrough or around the stuffing tubes.8. Workmanship, Finish, and Appearance8.1 Stu
20、ffing tubes shall be free from warp, cracks, chippededges or surfaces, blisters, uneven surfaces, scratches, dents,and heat marks. They shall be free from fins, burrs, andunsightly finish caused by chipping, filing, or grinding withoutsubsequent buffing or polishing. All molded nylon parts shallbe c
21、leaned thoroughly of annealing mediums. Packing assem-blies shall be free of voids, pin holes, flash, or other imperfec-tions, that may impair their serviceability.9. Test Methods9.1 Conformance testing of a random sample may berequested by the purchaser to verify that selected performanceTABLE 1 St
22、uffing Tubes Part Numbers and Dimensional DataTube Part Cable Range Packing Clearance Hole Diameter O-RingSize No. in. mm AssemblyAfor Tube Install Buna-Nmin. max. min. max. in. mm Size1 Type-1-001 0.077 0.300 1.96 7.62 -16 0.885 22.48 2122 -002 0.275 0.472 6.99 11.99 -17 1.010 25.65 2143 -003 0.410
23、 0.472 10.41 11.99 -18 1.135 28.83 216Straight 4 -004 0.450 0.777 11.43 19.74 -19 1.260 32.00 218Type 1 4T -005 0.450 0.777 11.43 19.74 -19 1.385 35.18 2205 -006 0.752 1.113 19.10 28.27 -20 2.010 51.05 2266 -007 0.806 1.390 20.47 35.31 -21 2.510 63.75 2307 -008 1.433 1.610 36.40 40.89 -22 2.760 70.1
24、0 2328 -009 1.625 2.00 41.28 50.80 -23 3.260 82.80 2369 -010 2.030 2.700 51.56 68.58 -24 4.010 101.85 242Tube Part Cable Range Packing Clearance Hole Diameter O-RingSize No. in. mm AssemblyAfor Tube Install Buna-Nmin. max. min. max. in. mm Size1 Type-2-001 0.077 0.300 1.96 7.62 -16 0.885 22.48 21290
25、 2 -002 0.275 0.472 6.99 11.99 -17 0.885 22.48 212Type 2 3 -003 0.410 0.472 10.41 11.99 -18 1.135 28.83 2164T -005 0.450 0.777 11.43 19.74 -19 1.260 32.00 2185 -006 0.752 1.113 19.10 28.27 -20 2.010 51.05 2206 -007 0.806 1.390 20.47 35.31 -21 2.510 63.75 230Tube Part Cable Range Packing NPTSize No.
26、in. mm AssemblyAmin. max. min. max.1 Type-3-001 0.077 0.300 1.96 7.62 -16 0.52 -002 0.275 0.472 6.99 11.99 -17 0.753 -003 0.410 0.472 10.41 11.99 -18 1.0NPT 4T -004 0.450 0.777 11.43 19.74 -19 1.0Type 3 5 -005 0.752 1.113 19.10 28.27 -20 1.56 -006 0.806 1.390 20.47 35.31 -21 27 -007 1.433 1.610 36.4
27、0 40.89 -22 2.58 -008 1.625 2.00 41.28 50.80 -23 39 -009 2.030 2.700 51.56 68.58 -24 3.5Tube Part Cable Ranges Packing Clearance Hole Diameter O-RingSize No. in. mm AssemblyAfor Tube Install Buna-Nmin. max. min. max. in. mm Size1 Type-4-001 0.077 0.300 1.96 7.62 -16 0.885 22.48 212Y 2 -002 0.275 0.4
28、72 6.99 11.99 -17 1.010 25.65 214Type 4 3 -003 0.410 0.472 10.41 11.99 -18 1.135 28.83 2164T -004 0.450 0.777 11.43 19.74 -19 1.385 35.18 220ASee Table 2 size selection.FIG. 2 Typical Packing AssemblyF 1836M 093characteristics specified herein have been incorporated in thestuffing tube design and ma
29、intained in production.9.1.1 VibrationThe stuffing tubes shall be subjected tovibration testing as specified in IEC Standard 68-2-6. Thefollowing details shall apply:9.1.1.1 The stuffing tubes shall be complete with O-ringsand 1- to 2-m (3- to 6-ft) lengths of cable of appropriate size.9.1.1.2 The f
30、ree end of the cables shall be secured to preventexcessive cable whipping action during test.9.1.1.3 Tests are to be carried out in three perpendicularplanes.9.1.1.4 Duration of the test for no resonance condition shallbe 90 min at 30 Hz. Duration at each resonance frequency atwhich Q 2 is recorded.
31、 It is recommended as guidance that Qdoes not exceed 5.9.1.1.5 Test range shall be 2 6 0.3 Hz to 13.2 Hz amplitude 61 mm: 13.2 to 100 Hz acceleration 67g.9.1.1.6 Nonconformance to the requirements of 7.1.1 shallbe cause for rejection.9.2 Mechanical Abuse Test:9.2.1 Mechanical abuse test shall be con
32、ducted on thesample stuffing tubes assembled with packing assembly on theend of a 2-m (6-ft) length of electrical cable of appropriate size.9.2.2 The stuffing tube shall be allowed to swing on aradius, while suspended by the electrical cable, from a verticalsurface and strike against a vertical flat
33、 steel plate on thatsurface. The vertical distance through which the stuffing tube isallowed to fall shall be 1.5 m (5 ft), and the number of impactsshall be ten.9.2.3 The stuffing tube shall be disassembled and examined.Nonconformance to the requirements of 7.1.2 shall be cause forrejection.9.3 Lev
34、el of EffectivenessA complete stuffing tube withO-ring installed and properly assembled to a cable or with aplug installed shall conform to the performance requirementsof NEMA 250. The NEMA enclosure-type designation (4, 4X,6, 6P) shall establish the appropriate environmental capability(see NEMA 250
35、) required of the installed stuffing tube assem-bly.9.3.1 Nonconformance to the requirements of 7.1.3 shall because for rejection.10. Inspection10.1 Visual and Dimensional ExaminationSamples shallbe examined visually to verify that the materials, design,TABLE 2 Packing Assembly SizeNOTE 1Packing ass
36、embly selection requires that the packing bushing inner diameter (D) be equal or slightly larger than the cable maximum diameter(DIA).NOTE 2I.D. column indicates the bushing inner diameter.Cable Range Cable Rangein. mm in. mmTube Part I.D. I.D. Tube Part I.D. I.D.Size No. min. max. min. max. Size No
37、. min. max. min. max.16-001 0.137 0.187 3.48 4.75 21-001 1.119 1.159 28.42 29.44-002 0.077 0.127 1.96 3.23 -002 1.127 1.167 28.63 29.641-003 0.100 0.150 2.54 3.81 -003 1.160 1.200 29.46 30.48-004 0.184 0.234 4.67 5.94 -004 1.204 1.254 30.58 31.85-005 0.228 0.278 5.79 7.066-005 1.255 1.305 31.89 33.1
38、5-006 0.244 0.300 6.20 7.62 -006 1.309 1.350 33.25 34.2917-001 0.275 0.325 6.99 8.26 -007 1.350 1.390 34.29 35.112-002 0.317 0.367 8.05 9.32 -008 0.856 0.886 21.74 22.50-003 0.340 0.390 8.64 9.91 -009 0.926 0.956 23.52 24.28-004 0.375 0.425 9.53 10.80 -010 0.776 0.806 19.71 20.47-005 0.422 0.472 10.
39、72 11.99 22-001 1.418 1.458 36.02 37.033 18-018 0.410 0.472 10.41 11.997-002 1.460 1.500 37.08 38.1019-001 0.450 0.500 11.43 12.70 -003 1.510 1.566 38.35 39.78-002 0.497 0.547 12.62 13.89 -004 1.570 1.610 39.88 40.89-003 0.534 0.584 13.56 14.83 23-001 1.610 1.641 40.89 41.684 -004 0.559 0.609 14.20
40、15.47 -002 1.645 1.688 41.78 42.87and -005 0.610 0.665 15.49 16.89 -003 1.695 1.735 43.05 44.074T -006 0.650 0.700 16.51 17.78 8 -004 1.745 1.812 44.32 46.03-007 0.669 0.719 16.99 18.26 -005 1.816 1.859 46.13 47.22-008 0.727 0.777 18.47 19.74 -006 1.860 1.906 47.24 48.41-009 0.710 0.760 18.03 19.30
41、-007 1.905 1.935 48.39 49.1520-001 0.737 0.777 18.72 19.74 -008 1.940 2.000 49.28 50.80-002 0.772 0.812 19.61 20.63 24-001 2.006 2.046 50.95 51.97-003 0.813 0.853 20.65 21.67 -002 2.050 2.093 52.07 53.16-004 0.849 0.889 21.57 22.58 -003 2.100 2.140 53.34 54.36-005 0.889 0.937 22.58 23.80 -004 2.150
42、2.285 54.61 58.045 -006 0.937 0.980 23.80 24.89 9 -005 2.295 2.385 58.29 60.05-007 0.981 1.021 24.92 25.93 -006 2.375 2.418 60.33 61.42-008 1.000 1.042 25.40 26.47 -007 2.428 2.540 61.67 64.52-009 1.033 1.073 26.24 27.25 -008 2.560 2.700 65.02 68.58-010 1.073 1.113 27.25 28.27F 1836M 094construction
43、, physical dimensions, marking, and workmanshipare as specified in the applicable requirements.11. Certification11.1 Plastic Material CertificationMaterial certificationshall be required from the manufacturer of the plastic materialto ensure the material was manufactured, sampled, tested, andinspect
44、ed in accordance with Specification D 4066. Materialidentity, traceable to this certification, shall be maintainedthroughout the manufacturing process.11.2 Cure date information of all rubber products shall berecorded on the manufacturers certificate of conformance. Theyear and quarter of manufactur
45、e shall be listed.11.3 When specified in the purchase order or contract, thepurchaser shall be furnished certification that samples repre-senting each lot have been either tested or inspected as directedin this specification and the requirements have been met. Whenspecified in the purchase order or
46、contract, a report of the testresults shall be furnished.12. Product Marking12.1 Each nylon stuffing tube component body, locknut,cap, bushing, and washers shall have permanent marking in3-mm (18-in.) high raised letters as size permits. For size-sensitive components, reduced marking is acceptable.
47、Markingshall indicate the following:12.1.1 Manufacturers name or trademark and tube size.12.1.2 Identification markings of prior or superseded speci-fications or government drawings. These markings are accept-able. New molds or molds that require rework shall contain, ifrequired, the ASTM designatio
48、n number of this specificationand part number. The location of the ASTM marking shallapply to the stuffing tube only and be located on the stuffingtube body. Marking in accordance with 12.1.1 shall apply to allstuffing tube components.13. Packaging13.1 Packaging shall be manufacturers commercial pra
49、c-tice and shall be sufficient to afford adequate protection againstdeterioration and physical damage during shipment from themanufacturer or supplier, or both, to the using activity.NOTE 1Bulk packaging for nylon stuffing tubes; unit packaging forpacking assemblies.14. Quality Assurance14.1 Responsibility for InspectionUnless otherwise speci-fied in the contract or purchase order, the manufacturer isresponsible for the performance of all inspection requirementsas specified herein. Except as otherwise specified in thecontract or purchase orde
