1、/ s- 03-=/“7 _ MIL-P-35743D 37 = 7737706 0283738 7 E MIL-P- 15 94 3D MIL-P-15943C 30 November 1967 MILITARY SPECIFICATION PALLET, MATERIAL HANDLING, WOOD, SHIP CARGO, STEVEDORING, 48 INCHES LONG BY 72 INCHES WIDE, 2-WAY ENTRY. This specification is mandatory for use by all Departments and Agencies o
2、f the Department of the Defense 1. SCOPE 1.1 Scope. This specification covers the design, materials, .and fabrication of materials handling pallets for stevedoring and drum handling operations, 1.2 Classification. Pallets shall be wood, stringer type construction, two-way entry, double wing, 48 inch
3、es long by 72 inches wide and one of the following types, grades, and classes (see 6.2): Type I - Ship cargo (stevedoring). Type II - Drum handling (55 gallon). Grade A - Softwood Components with all bolted construction (for Type I only), Grade B - Hardwood components with screw nails and bolt const
4、ruction. Class 1 - Assembled. Class 2 - Unassernbled (knocked-down) (for Type I only). 2. APPLICABLE DOCUMENTS 2.1 Issue of documents. The following documents of the issue in effect on date of invitation for bids or request for proposal form a part of this specification to the extent specified herei
5、n: SPECIFICATIONS FEDERAL FF -N- 10 5 FF-B-571 QQ-S-781 TT-W-572 -Nails, Wire Brads, Staples. -Bolts, Nuts, Studs, and Top Rivets (And -Steel Strapping, Flat. -Wood-Preservative: Water-Repellant. Material For Same). Beneficial comments (recommendations, additions, deletions) and any pertinent data w
6、hich may be of use in improving this document should be addressed to: Fitting Out Supply Assistance Office, Bldg. 143, U. S. Naval Base, Norfolk, Virginia 23512 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter
7、, Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-15943D MILITARY MIL-B-117 - Bags and Sleeves, Interior Packaging. STANDARDS FEDERAL FED-STD-H28 - Screw Thread Standards for Federal Services MILITARY MIL-STD-105 MIL-STD -12 9 MIL-STD-130 MIL-S
8、TD-7 3 1 HIL-STD-1363 - Sampling Procedures and Tables for - Marking for Shipment and Storage. - Identification Marking of U. S. Military - Quality of Wood Members for Containers - Measurement o Wood Moisture Content, Inspection by Attributes. Property, and Pallets. (Copios of specifications and sta
9、ndards required by contractors in connection with epecific procurement functions should be obtained from the procuring activity or as directed by the contracting oficer). 2.2 Other publications. The following documents form a part of this sgaeification to the extent specified herein. Unless otherwis
10、e indicated tho issue In effect on date of invitations for bids or request for proposal shalZ apply. N-lERZGIIP.1 SXIETY FOR TESTING AND MATERIALS (ASTM) ACTM E-18-79 ASTH E-298-80 -Rockwell Hardness and Rockwell Superficial Hardness of -Semi-Guided Bent Test fol: Ductility of Metallic Materials. l-
11、letallic: Materials (Application for copies should be addressed to the American Society for Tosting and b!aterials, 1916 Race Street, Philadelphia, PA 19103.1 SQeIETY OF AUTOX!CIVE ENGINEERS SAI2 Handbook (Asplication foz cosies should be addressed to: Society of Automotive Engineers, 485 Lexington
12、Avenue, New York City, New York 10017.) 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-15743D 37 9 7799706 O281720 7 9 MIL-P-15943D 3. REQUIREMENTS 3.1 Standard product. Class 1 pallets shall be completely assembled and ready for use when pr
13、esented for Government acceptance. Components for Class 2 pallets shall be sized and finished as specified herein and furnished with sufficient hardware to permit field assembly. 3.2 Preproduction model. Unless otherwise specified (see 6.2), the supplier shall furnish a pallet within the time frame
14、specified in the contract or purchase order to prove, before production is commenced, that his production methods and choice of design detail 11 produce pallets that comply with the requirements of this specification. Examination and tests shall be those in accordance with Section 4 of this specific
15、ation. from the preproduction model during production shall be subject to the approval of the contracting officer or his authorized representative. preproduction model shall not relieve the supplier of his obligation to furnish pallets confdrming to this specification. Any changes or deviations Appr
16、oval of the -. 3.3 Referenced documents. Where there is a conflict between this speci- fication and any referenced document, this specification shall govern. 3.4 Materials. Materials shall be as specified herein and of the quality normally used in good commercial practice. 3.4.1 Wood. Wood for the d
17、eckboards and stringers for grade A and grade B palIets shall be selected from any of the species listed in Table I. boards and stringers for any single pallet may be any species under the specified grade. Deck- TABLE I. WOOD SPECIES So Alder, red Cedar Cypress (bald) Fir (white and Douglas) Hemlock
18、 Har Ash, white Beech Birch Elm (rock and white) Eucalyptus robusta aoods - Grade A Lar ch Pine (Eastern white, red, Redwood Spruce Norway, southern yellow) aoods - Grade B Hackberry Hard maple Hickory Oak (white and red) Pecan 3 Provided by IHSNot for ResaleNo reproduction or networking permitted w
19、ithout license from IHS-,-,-MIL-P-15943D 3.4.2 Moisture content. Moisture content describes the weight of water in the wood in percentage of the weight of the oven-dry wood and shall be as specified in 3.4.2.1 and 3.4.2.2 testing f wood components for moisture content shall be performed as specified
20、 in 4.5.1. 3.4.2.1 Grade A pallets. At the time of fabrication in the manufactures plant, the average moisture content for deckboards and stringers shall not be greater than 22 percent per pallet. 3.4.2.2 Grade B pallets. At the time of fabrication in themanufacturers plant, the average moisture con
21、tent of deckboards shall not exceed 19 percent with no individual test reading more than 22 percent. the moisture content for stringers is unrestricted; for class 2 pallets the moisture content for stringers shall not exceed 22 percent. For class 1 pallets 3.4.3 Puality. All lumber shall be sound, s
22、quare-edged, and free of decay, shake, spike knots, cup, and excessive warp. Slope of grain shall not exceed 1 in 10. powder-post beetle infestation and all pallets found to have such infestation shall be rejected. wane, on 1 non-exposed edge only, not exceeding 1/4 of the thickness nor 1/6 of the w
23、idth or 1/3 the length of deckboards or stringers; sound knots whose average diameter does not exceed 1/3 the piece width; season checks not more than 2 times as long as the piect thickness; 1 split not longer than the width of the piece; chipped.or torn grain not more than 1/16 inch in depth, not e
24、xceeding in area 1/6 of the surface of the piece when chipped or torn grain side is turned down; each piece shall contain no more than one 1/2 inch hole not extending through the piece; pin worm holes; streaks; and stains. No piece shall contain any other defect or combination of defects which will
25、materially weaken the strength of the piece or hinder itsproper fastening. that the pallet is completely free of oak wilt fungus, all hardwood and softwood component parts shall be absolutely free from bark. Lumber shall be entirely and completely free of deterioration by lyctus The following defect
26、s will be permitted: firm tight pitch; To ensure 3.4.4 Wood preservative. When specified (see 6.21, the assembled pallet, or the lumber components, shall be submerged and soaked for 3 minutes in wood preservative conforming to composition A, type II of TT-W-572. If the lumber is cut, shaped, bored,
27、or trimmed after the Preservative treatment, it shall be resubmerged for 3 minutes in the preservative, or if this is not possible, all the newly exposed surfaces such as ends, holes, joints, and new cuts shall be swabbed with the preservative. Treatment of class 2 pallets after bundling and strappi
28、ng is not acceptable. (CAUTION: The carrier for the Preservative is a kerosene base solvent. Perkonnel should be protected in accordance with TT-W-572. Treated lumber should be allowed to dry out-of-doors or in a well ventilated area to permit evaporation of flammable vapors). 3.5 Design and constru
29、ction. Pallets shall be fabricated as specified herein and as shown in Figures 1 and 2, as applicable. Grade A pallets shall consist of softwood deckboards and stringers. Grade B pallets shall consist 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,
30、-MIL-P-357q3D 39 7977706 0283722 O W MIL-P-15943D of hardwood deckboards and stringers. Deckboards for grade A pallets shall be 2 inches nominal, 1-5/8 inches minimum. Deckboards for grade B pallets shall be 1-1/4 inches nominal, 1-1/16 inches minimum. For grades A and B pallets, edge deckboards sha
31、llAbe 8 inches nominal, 7-1/2 inches minimum, Intermediate deckboards shall be of random width, at least 6 inches nominal, 5-5/8 inches minimum, and not exceeding 8 inches nominal, 7-1/2 inches minimum. Type I pallets shall have neither more than 4 nor less than 3 intermediate deckboards for the upp
32、er and lower faces. between deckboards shall be 2-5/8 inches maximum, 2 inches average, except for type II pallets as shown in Figure 2, on two sides. minimum and 48 inches long, and surfaced on top abd bottom. Class 1 pallets shall be completely assembled by the manufacturer. unassembled, but with
33、all components finished and ready for field assembly. All drilled and countersunk holes shall be completed, and necessary hardware required for assembly shall be provided for class 2 pallets. For grade A and B pallets, spacing All deckboards,shall be surfaced Stringers shall be 4 by 4 inches nominal
34、, 3-5/8 by 3-5/8 inches Class 2 units shall be 3.5.1 Tolerances. Except as specified herein, the overall length and width of the pallet shall be subject to a tolerance of 1/4 inch plus or minus. “Out-of-square“ deviation shall not exceed 1 inch difference in diagonals. Minimum allowable thickness of
35、 softwood lumber shall be restricted to the dimensional limitations of MIL-STD-731. 3.6 Hardware. All bolts, torque washers, and Pallet nuts shall be cadmium or zinc coated and shall meet all dimensional requirements specified herein after coating has been applied. class 2 in accordance with FED-STD
36、-H28. Threads on bolts and nuts shall be either NC-2 or NC 3.6.1 Bolts. Bolts shall be of hardened commercial steel 3/8“ dia with 16 threads per inch, square neck carriage bolts, 6-1/2 inches long for grade A pallets and 5-1/2 inches long for grade B pallets, conforming to class C2 of FF-B-571. 3.6.
37、2 Torquewasherc. Carriage bolt torque washers shall be made from 0.050 inch thick SAE-1010 carbon steel strip and formed from circular blanks, with an outside diameter of not less than 1-1/16 incn. Four prongs, each not less than 9/32 inch deep, shall be formed from washer blanks and shall be perpen
38、dicular to them. to accomodate the shank of a 3/8-16 inch carriage bolt. have a parkerized finish not less than 0.0002 inch thick. A square hole shall be blanked out of the central portion of the washer Torque washers shall 3.6.3 Pallet nuts. Pallet nuts (see 6.3) shall be 3/8-16 inch and shall be m
39、ade from 0.075 inch thick, SAE 1010, cold rolled steel stock. The flange shall be either circular, with a 1-3/16 inch diameter, or hexagonal, 1-3/16 across the flats, shall be formed between the flange and the threaded portion of the barrel to permit insertion of Allen wrenches or power operated set
40、ting tools At least a 3/8 inch thread length shall be provided inside the barrel. An impact friction lock shall be Overall nut depth shall be 13/16 inch. -_ ,- =- - 7 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-15943D 39 W 9999906 0282723
41、 2 W MIL-P-15943D I incorporated in the nut barrel, 5/16 inch from its open end, which shall provide 14 to 30 pounds of torque upon first insertion of the-carriage bolt. 3.6.4 Nails. Nails shall be hardened (heat-treated and tempered) steel having-a minimum Rockwell hardness of C42 when tested in ac
42、cordance with 4.5.3. The nails shall withstand, without fracture, bending through 90 degrees over a radius not greater than the diameter of the nail when tested as specified in 4.5.4. Nails shall comply with the following requirements in accordance with FF-N-105, type II, style 18; length, 4 inches
43、+ 3/32 inch; wire diameter, 0.177 inch +.O02 inch steel wire gauge; head diameter, 7/16 inch +1/32 inch; head thickness, 0.072 inch +0.002 inch; threaded portion shall extend from the point to a minimum of two thirds up the shank; diameter over thread after threading, 0.200 inch +.O05 inch; diamond
44、point, 1/4 inch long +1/16 inch. Thread shall be spiral, with a minimum of 4 flutes. at pitch diameter shall be 60 degrees f5 with a plane perpendicular to the axis. Helical angle of thread 3.7 Assembly. 3.7.1 Type I, grade A, class 1 pallets, Type I, grade A, class 1 units shall be of all bolted co
45、nstruction and shall be assembled in accordance with Figure 1. Each pair of deckboards shall be attached to the center stringer by a single, round head carriage bQlt. The bolts shall be centrally located in the deckboards and center stringer. At each outside stringer, each pair of deckboards shall b
46、e attached by two round head carriage bolts. Bolts shall be as specified in 3.6.1. Outer edges of outside stringers shall be set inboard 6 inches from outer edges of deckboard ends. Each pair of carriage bolts running through outer stringers shall be offset so that their centerlines are 1-1/4 inches
47、 in from stringer edges and 1-1/2 inches in from deckboards edges. Deck- boards having pallet nuts shall be drilled with 1/2 inch hole concentric with a 7/16 inch diameter hole through the stringers and opposite deckboard. Nut ends of bolt holes shall have counterbores 1-3/8 inch diameter, 1/8 inch
48、deep, and 3/4 inch daameter, 1/4 inch deep. Bolt holes shall be blown out clean by compressed air, or a similar means. torque washers at their head ends. All bolts shall be driven to countersink the torque washers, End boards shall have 2 inch, 45 degree bevels at their outer corners. All bolts shal
49、l be provided with specified 3.7.2 Type I or type II, grade B, class 1 pallets. Type I or type II, grade B, class 1 units in accordance with Figure 1 and Figure 2 respectively, shall be bolted and screwnailed construction. Each pair of end deckboards shall be of bolted and screwnailed construction. Each pair of end deckboards shall be attached to the center stringer and the outside stringers by carriage bolts, torque washers, and pallet nuts in the manner described fo
