1、NIL-L-2037E 55 M 777770b 0447830 L IINCH-POUNDI MIL-L-2037E 21 August 1990 SUPERSEDING 30 December 1965 (See 6.10) MIL-L-2037D MILITARY SPECIFICATION LUMBER, OAK, WHITE AND RED, FOR SHIP AND BOAT CONSTRUCTION This specification is approved for use by all Departments and Agencies of the Department of
2、 Defense. 1. SCOPE 1.1 ScoDe. This specification covers white and red oak lumber for ship and boat construction, including bending for boat and ship frames or for parts requiring bends of similar severity. 1.2 Classification. White and red oak lumber shall be furnished in the following types, classe
3、s and grades, as specified (see 6.2 and 6.3): Type I - White oak. Type II - Red oak, preservative treated. Class 1 - Planking. Grade A Grade B Class 2 - Shaft logs. Class 3 - Sawn timber. Grade A Grade B Class 4 - Ceiling. Class 5 - Bending. Grade A Grade B Beneficial comments (recommendations-, add
4、itions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, Naval Sea Systems Command, SEA 5523, Department of the Navy, Washington, DC 20362-5101 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426)
5、appearing at the end of this document or by letter. AMSC N/A FSC 5510 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-2037E 55 W 9999906 OL147833 3 W MIL-L-2037E,
6、 2. APPLICABLE DOCUMENTS 2.1 Government documents, 2.1.1 SDecifications. standards, and handbooks. The following specifi- cations, standards, and handbooks form a part of this document to the extent specified herein. those listed in the issue of the Department of Defense Index of Specifications and
7、Standards (DODISS) and supplement thereto, cited in the solicitation (see 6.2). Unless otherwise specified, the issues of these documents are SPECIFICATIONS FEDERAL TT - P- 320 TT -V - 119 - Varnish, Spar, Phenolic-Resin. TT- W - 571 - Wood Preservation: Treating Practices. - Pigment, Aluminum: Powd
8、er and Paste for Paint. MILITARY MIL-L-14362 - Lumber: Unitizing and Loading of. MIL-L-19140 - Lumber and Plywood, Fire-Retardant Treated. STANDARDS MILITARY MIL-STD-105 - Sampling Procedures and Tables for Inspection by Attributes. (Unless otherwise indicated, copies of fede.ra1 and military specif
9、ications, standards, and handbooks are available from the Standardization Documents Order Desk, Bldg. 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) 2.2 Non-Government Dubiications. The following document(s) form a part of this document to the extent specified.herein. Unless otherwise specifi
10、ed, the issues of the documents which are DOD adopted are those listed in the issue of the DODISS cited in the solicitation. documents not listed ia,the DODISS are the issues of the documents cited in the solicitation (see 6.2) Unless otherwise specified, the issues of AMERICAN SOCIETY FOR TESTING A
11、ND MATERIALS (ASTM) (DoD adopted) Measurement of Wood and Wood Based Materials. Moisture Meters. D 607 - Standard Specification for Wet Ground Mica Pigments. D 4442 - Standard Test Method for Direct Moisture Content D 4444 - Standard Test Methods for Use and Calibration of Hand Held (Application for
12、 copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-2037E 55 m 7777706 0447832 5 W MIL-L-2037E NATIONAL HARDWOOD LUMBER ASSO
13、CIATION (“LA) Rules for the Measurement and Inspection of Hardwood and Cypress. (Application for copies should be addressed to the National Hardwood Lumber Association, P.O. Box 34518, Memphis, TN 38184-0518.) (Non-Government standards and other publications are normally available from These documen
14、ts also the organizations that prepare or distribute the documents. may be available in or through libraries or other informational services.) 2.3 Order of mecedence. In the event of a conflict between the text of this document and the references cited herein, the text of this document takes precede
15、nce. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Material. White oak lumber shall be cut from trees of species in the Red oak lumber shall be cut from trees of species in the red oak Trees shall have
16、 been grown in the United States or white oak group. group (see 4.4.4 and 6.7). Canada. 3.2 Dimensions. Unless nominal size is specified (see 6.2), lumber shall be manufactured to not less than the dimensions specified. parallel edges and faces, subject to the standard tolerances for variations in s
17、awing or subsequent surfacing (see 4.3.8 and 6.2). Sapwood, wane, or other defects which can be eliminated in sawing or surfacing oversize pieces to the standard nominal dimensions ordered will be permitted for all classes of material, Lumber shall have 3.3 Defects. The limitations and permitted def
18、ects in lumber shall be as specified in 3.3.1 through 3.3.4 and table I. the piece that no combination of them at any point is more weakening than a single maximum permissible defect. The defects shall be so located in 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without li
19、cense from IHS-,-,-f II- c, P 2 m I In u) u) u m m al U W e - 4 4 L W * IC c, o al Y- al a MIL-L-2037E 55 = 777770b 0447833 7 MIL-L-2037E 8Y- -a o B ci U u) mm u) al o al Ir n -8 8. c, e, E al C O c, Y- 8 Q) C ar r i! y. * E .I- e 5 + Q) C IC c 5 Y- C IC c c, al .al Y- * C .I- c c, al al Y- Q) C .-
20、c n8 28 w - 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I w 2 m z 4 ci P a m I VI u) u) Q o d MIL-L-2037E I LA CI I bl e, c m ci .r I c, B o 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-.r
21、c, u 5 I u) CI o al Y -8 al 2 I .a- I O m d d x m ac .- 1C 3 IC c ci O B m - 8 B5 u - .I- ci Q IC al *- 9- io U :i 8.) LY- k ci rn f d + O * k 8 B .a- ci Q .r U o C .C L 8 ci O 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-h- c, c 0 I I M u) u) u
22、 m i. - u) lm o ru- Wc, u)+ - UV mm - m al U W 2 - 4 al U W t - d .I- al u - m P W P W - U - MIL-L-2037E 55 = 777770b OLI47837 4 MIL-L-2037E z IC u 25 - ch E ry. O L g; o 8 .E CI al P 9 IC 5 m c, O C “ 8, c, IC .I- E d ci o. 3 u c o *Y C .I- L lal .3c :=. 2 oc, Lm er c OL 3 c, o+ OY- o C L al IC E 8
23、 c, L 3 O c C IC ry. O L gi rc c, O* .E ii v- e* .E t .I- LC c oL L roc oc, II- i5 P o L- 3 *,o+ OY-o I! w u) I c IC 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-pE037E 55 W 9979906 0447838 b M MIL-L-2037E 3.3.1 Defects due to foreign - or
24、gaHsms. - Lumber shall be free from decay, mold, and stain. The presence of fracs, or other indicatipns of active insect attack, shall be cause for rejection. Pinholes and grub holes resulting from * dormant insect infestation shall not exceed the limits specified in table I. 3.3.2 Defects due to na
25、tural causes. Lumber shall be free from shake and loose knots, Sound knots, burl, sapwood, holes, bark pocket, and wane shall not exceed the limits specified in table I. An unlimited amount of sapwood will be permitted where the lumber is pressure treated with a preservative (see 3.4). White oak may
26、 contain untreated sapwood within the limits specified in table I. 3.3.3 Defects due to seasoninq. Lumber shall be free from honeycombing. Casehardening, surface checks, end checks or splits, bow, crook, cup, and twist shall not exceed the limits specified in table I. 3.3.4 SloDe of grain. Lumber sh
27、all not have a slope of grain on any face or edge which exceeds the limits specified in table I. 3.4 Preservative treatment. Except as permitted in 3.3.2, all white oak sapwood and all red oak shall be treated in accordance with TT-W-571. shall be with ammoniacal copper arsenate (ACA), ammoniacal co
28、pper zinc arsenate (ACZA), or chromated copper arsenate (CCA) with a retention of 0.4 pound per cubic foot (lb/ft3) in the assay zone, inch in depth. Penetration of red oak heartwood shall be at least 65 percent of all annual rings. Penetration of any sapwood shall be 95 percent of total depth or th
29、ickness. Treatment of white oak heartwood is permitted but not required. Treatment Red oak assay zone shall be from 0.25 to 1.0 White oak assay zone shall be the maximum depth of the sapwood. 3.5 Moisture content. Lumber shall be seasoned by air or kiln drying to within the following moisture conten
30、t limits (see 4.4.1): Class 1 - 17 f 3 percent. Class 2 and 3 - Any stage of seasoning. Class 4 - 15 f 3 percent. Class 5 - 15 percent or above. 3.5.1 Moisture content gradient-. For classes 1 and 4, the moisture content of the core shall not vary from that of the shell by more than 3 percent (see 4
31、.4.1). 3.6 Specific gravity. Exceptionally lightweight lumber shall be cause for rejection, handling shall be tested (see 4.4.3). than: Lumber suspected of being abnormally light in weight during inspection The specific gravity shall be not less white oak, 0.65 (40.6 lb/ft3), and red oak, 0.61 (38.1
32、 lb/ft3). 3.6.1 Growth rings. Lumber in classes 1, 2, 3, and 4 shall have not more than 20 rings per inch, measured on a representative radial line (see 4.3.7). Class 5 lumber shall have not less than six nor more than 15 growth rings per inch of radius. 9 . Provided by IHSNot for ResaleNo reproduct
33、ion or networking permitted without license from IHS-,-,-MIL-L-2037E 0 3.7 Application of protective coating. 3.7.1 End coating. The ends of all lumber shall be painted within 24 hours after sawing with two coats of aluminum or mica paint. consist of 2 pounds of aluminum powder paste conforming to t
34、ype II, class B, of TT-P-320 and 1 gallon of phenolic varnish conforming to TT-V-119 (equal to Navy formula 80). ASTM D 607 and 1 gallon of phenolic varnish as above. A drying interval of 24 hours shall elapse before applying the second coat. An alternate end coating may be any commercial end coatin
35、g satisfactory to the Command or agency concerned. Aluminum paint shall Mica paint shall consist of 2 pounds of mica conforming to 3.7.2 Side coating. When lumber is required to be side coated (see 6.2), it shall be given two. brush or spray applications of aluminum paint as specified in 3.7.1. dryi
36、ng interval of 24 hours before applying the second coat. and mold prevention, when required (see 5.2.1), shall precede side-coating applications. The side coating shall be applied within 24 hours after sawing, with a Treatment for stain 3.7.3 Reapplication of protective coating. End and side coating
37、s shall be renewed when visibly damaged or rendered ineffective by weathering when lumber is stored outdoors for long periods of time. 3.8 Identification marking;, When specified in contract or order (see 6.2), each piece of lumber which has passed the examination and tests specified herein, shall b
38、e marked for type, class, and grade. Narrow, thin pieces shall be bundle marked. Lumber shall be tagged or marked on one end. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibilitv for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the perform
39、ance of all inspection requirements (examinations and tests) as specified herein. Except as otherwise specified 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 b
40、y the Government. The Government reserves the right to perform any of the inspections set forth in this specification where such inspections are deemed necessary to ensure supplies and services conform to prescribed requirements. 4.1.1 Resrionsibilitv for compliance. All items shall meet all require
41、ments of sections 3 and 5. The inspection set forth in this specification shall become a part of the contractors overall inspection system or quality program. absence of any inspection requirements in the specification shall not relieve the contractor of the responsibility of ensuring that all produ
42、cts or supplies submitted to the Government for acceptance comply with all reqirements of the contract. Sampling inspection, as part of the manufacturing operations, is an acceptable practice to ascertain conformance to requirements, however, this does not authorize submission of known defective mat
43、erial, either indicated or actual, nor does it commit the Government to acceptance of defective material. The 4.2 m. All lumber of one class and grade to be delivered in one truck or railroad car shall be considered a lot for purposes of inspection. 10 Provided by IHSNot for ResaleNo reproduction or
44、 networking permitted without license from IHS-,-,-MIL-L-2037E 4.3 Oualitv conformance insDection. 4.3.1 Sampling, Unless otherwise specified herein, samples shall be selected from the lumber which has passed the grade and class examination of 4.3.2. The number of pieces in the lot shall be tallied
45、beforehand, and the samples selected in accordance with MIL-STD-105 at inspection levels listed in table II. Any sample piece that does not meet the requirements of 3.2, 3.5, 3.5.1, 3.3.3 and 3.6.1 shall be rejected. TABLE II. SamDline;. Examinat ion or test Dimensions Moisture content Moisture grad
46、ient Case-hardening Honeycomb Growth rings Requirement 3.2 3.5 3.5.1 3.3.3 3.3.3 3.6.1 I Inspection level (MIL-STD-105) Classes 2:h:dl 1 and 4 Classes Class 2 and 3 4.3.8 4.4.1 4.4.1 4.4.2 4.4.2 4.3.7 II II I I I I 4.3.2 Class and grade - examination. Each piece of lumber in the lot shall be examine
47、d to determine compliance with the requirements of 3.3 (except casehard- ening and honeycombing) and 3.6 (except 3.6.1). Each piece of lumber shall be positively identified as white oak or red oak (see 6.7). Care shall be taken to prevent lumber containing only sapwood from being accepted as all hea
48、rtwood. Slope of grain shall be determined in accordance with 4.3.5. Each piece not conforming to class and grade examination shall be rejected. 4.3.3 uantitv examination. The quantity of lumber in the lot shall be determined by tally, in accordance with the “LA grading rules (see 2.2). 4.3.4 Preser
49、vation treatment examination. Each lot shall be examined in accordance with TT-W-571 for preservative retention and penetration conformance to 3.4. In the case where the lot of material is preservatively treated as part of a larger treatment charge or batch, the lot shall contribute at least 25 percent of the samples chosen for the batch inspecti
