ARMY MIL-T-52820 A-1979 TABLE DRAWING STEEL《钢制绘图桌》.pdf

1、MIL-T-52820A(ME) 31 October 1979 SUPERSEDING MIL-T-52820 (ME) 8 July 1974 MILITARY SPECIFICATION TABLE, DRAWING, STEEL This specification is approved for use by the Xobility Equip- ment Research and Development Command, Department of the Army, and is available for use by all Departments and Agencies

2、 of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers a steel drawing table. 2. APPLICABLE DOCUMENTS 2.1 Issues 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 s

3、pecified herein: SPECIFICATIONS FEDERAL FF-S-92 - Screw, Machine: Slotted, Cross- Recessed or Hexagon Head. FSC 6675 - Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: US Army Mobility Equipment

4、Research and Development Command, ATTN: DmNE-DS, Fort Belvoir, VA 22060 by using the self- addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. Provided by IHSNot for ResaleNo reproduction or networking permitted without license f

5、rom IHS-,-,- Boxes, Wood, Cleated-Plywood. - Boxes, Wood, hailed and Lock- - Fiberboard: Corrugated and Solid, Corner. Sheet Stock (Container Grade), and Cut Shapes. - Tape: Packaging, Naterproof. - Webbing, Textile, Cotton, General Purpose, Natural or in Colors. - Buckles, Tongueless axd Web Strap.

6、 - Treatment and Painting of Ifateriel. - Colors. - Sampling Procedures and iables for Inspection by Attributes. - :larking for Shipment and Storage. - Identification !larking of US - Cushioning, Anchoring, Bracing, 14ilitary Property. Blocking, and Waterproofing; with Appropriate Test Xethods. - Co

7、mmercial Packaging of Supplies and Equipment. - Nut, Plain, Wing, UNC-2B. - !linge, Butt, Continuous (Piano) ,060 Thickness .187 Pin Dia. - Drawing Boards, Type I. - Loop, Strap Fastener (Footmans Loop). 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-

8、,-,-MIL-T-52820A bb W 7777706 OLLi07b 7 = (Copies of specifications and standards required by contractors in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer.) 2.2 Other publications. The following documents form

9、a part of this specification to the extent specified herein. Unless otherwise indi- cated, the issue in effect on date of invitation for bids or request for proposal shall apply. AMERICAN SOCIETY FOR TESTILJG AND PIATERIALS (AST A 36 Structural Steel. A 366 Steel, Carbon, Cold-Rolled Sheet, A 519 Se

10、amless Carbon and Alloy Steel Mechanical Tubing. Commercial Quality, (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) SOCIETY OF AUTOMOTIVE ENGINEERS (SAE) SAE Handbook. (Application for copies should be address

11、ed tothe Society of Auto- motive Engineers, 400 Commonwealth Drive, Warrendale, PA 15096). (Technical society and technical association specifications and stan- dards are generally available for reference from libraries. They are also distributed among technical groups and using Federal agencies.) 3

12、. mQUIREPENTS - 3.1 Descript%. as specified herein. The table shall be as shown in Figures 1 and 2 and 3.2 Material. Material shall be as specified herein. Haterial not specified shall be selected by the contractor and shall be subject to ali provisions of this specification (see 6.3). 3.2.1 Sheet s

13、teel, Sheet steel shall conform to ASIM A 366. 3.2.2 Tube steel. Tube steel shall conform to ASTM A 519. 3.2.3 Angle steel. Angle steel shall conform to ASTM A 36, 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3,3 Fabrication. 3.3,1 Storage compa

14、rtment. The storage compartment shall be cold rolled commercial quality sheet steel and shall be provided with 2 lengthwise partitions, equally spaced; 4 widthwise partitions , equally spaced; drawer; and an ink tray. 3.3.1.1 Drawer. The drawer shall ride within channels welded to the compartment bo

15、dy and shall be fitted with a latch and drawer pull. 3.3.1,1,1 Drawer latch. Each drawer shall have an automatic latch which is released by a finger-controlled mechanism. may be a button or lever and shall be located so that it can be released when the users hand is in position on the drawer pull. T

16、he latch shall automatically hold the drawer in a closed position. The latch shall prevent the drawer from opening, even when the loaded drawer is sub- jected to the shock and vibration encountered when the table is mounted in a motorized van traversing rough terrain, unless the latch is released by

17、 the finger control, hook, shall be concealed between the drawer pans. The catch may be formed from the drawer suspension member of the front vertical rein- forcing member in such a way as to positively and automatically engage the hook, and in a manner to prevent: shearing or tearing of the catch b

18、y the hook. The button or lever shall be fabricated from corrosion- resistant metal to assure free action. The finger control The latching mechanism, except for the locking 3.3.1.2 Ink tray, The ink tray shall be welded to the inside bottom of the drawer, 3.3.2 Drawing board and strip. The drawing b

19、oard shall conform to NS39123-5, The strip shall be 0.75 by 0.75 by 42 inches, and shall be the same material and finish as the drawing board. 3.3.3 y- Hinge. The hinge shall conform to 1-E35826-10DY 42 inches long. 3.3,4 Adjustable legs-. The legs shall be tube steel conforming to ASTH A 519, seaml

20、ess, normalized, and square shape. Each leg shall consist of an inner tube and an outer tube. The dimensions of the inner tube shall be as follows: Length, 26 inches; outside diameter, 2 inches; and wall thickness, 0.036 inch. The dimensions of the outer tube shall be as follows: Length, 8 inches; o

21、utside diameter, 2.04 inches; and wall thickness, 0.036 inch. Each outer tube shall be welded 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-52820A 66 9999906 010970 5 W to the bottom of the storage compartment and shall have a 0.50-inch bol

22、thole, drilled with center 1 inch from the end. Each inner tube shall have three 0.50-inch boltholes, drilled with centers 1, 4, and 7 inches from the end, to accommodate height adjustment bolts. The left rear inner tube shall have four 0.203-inch boltholes, two drilled with centers 2 and 4.875 ineh

23、es above the top of and on the same side as the leg brace, and two drilled with centers 2 and 4.875 inches above the top of and on the inward side adjacent to ehe leg brace. These four boltholes are for attachment of- the footmans loops. 3.3.5 Side braces. Each side brace shall be 2- by 2- by 0.188-

24、inch angle comforming to AS Iype III or IV, The table shall be 51.2 Commercial. The tables shall be preserved in accordance with MIL-STD-1188 5.2 Packing. Packing shall be Level. A, Level B, or Commercial as specified (see 6.2). 8 Provided by IHSNot for ResaleNo reproduction or networking permitted

25、without license from IHS-,-,-MIL-T-52820A 66 M 7979706 0340974 2 M MIL-T- 5 28 20A (IE) 5.2.1 Level A. The tables shall be packed in boxes conforming to PPP-B-61, Overseas Type, Grade B, or PPP-B-621, Class 2. The tables shall be blocked and braced in the containers in accordance with MIL-STD-1186 u

26、sing fiberboard conforming to PPP-F-320, Class Weather- Resistant. Closure and strapping shall be in accordance with the appendix of the applicable box specification. 5.2.2 Level B. The tables shall be packed, and blocked and braced as specified in 5.2.1 for Level A, except the boxes shall be Domest

27、ic Type 9 5.2.3 Commercial. The tables shall be packed in accordance with MIL-STD-1188. 5.3 Marking. 5.3.1 Military packaging. Marking shall be in accordance with MIL-STD-129. 5.3.2 Commercial packaging. Harking shall be in accordance with MIL-STD-1188. 6. NOTSS 6.1 Intended use. The drawing table i

28、s intended for use in surveying Equipment Set 6675-97-CL-E45. 6.2 Ordering data. Procurement documents should specify the following: (a) Title, number, and date of this specification. (b) Degree of preservation and degree of packing required (see 5.1 and 5.2). 6.3 Recycled material. It is encouraged

29、 that recycled material be used, when practical, as long as it meets the requirements of this specification (see 3.2). Custodian: Army - Preparing activity: Army - NE Review activity: DLA - GS Project 6675-A22b 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license fr

30、om IHS-,-,-ilIL-T-4 282011 (tXC) .- -1- it -2.0 2.0 NOTE: AlL OIMENSIONS ARE INCHES. FIGURE I. TaMe,drawing, metal base. paq 10 Q SECTION A.A Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-42.00 L : MIL-T-52820A 66 W 9999906 OLgO976 b 2.00 x 2.00 x.

31、 188- FIIL-T-528 20A (1E) STORAGE COMPARTMENT r.906 R I L2.313 5 PLACES SPACED 14.375 EQUALLY i 0.375 0.875 -4 4.50 NK TRAY NOTE: ALL DIMENSIONS ARE INCHES. I AS SHOWN I LOPPOSITE HAND il ij FIND NO. I 2 3 4 5 6 7 8 9 IO II 12 13 14 15 16 n 18 19 26 21 QUANTITY I I 2 2 I 4 4 I I I I I I 2 I I 4 I 2

32、I 4 KEY HOLE ANGLE DESCRIPTION STORAGE COMPARTMENT INK TRAY KEY HOLE ANGLE KEY HOLE ANGLE (OPPOSITE HAND) DRAWING BOARD LEG, ADJUSTABLE BRACE, SIDE DRAWER DRAWER PULL CATCH, PUSH BUTTON STRIP HINGE SEAT, STOOL, SWIVEL FOOTMAN LOOP STRAP,WITH BUCKLE STRAP, WITH.METAL TIP BOLT BRACKET, STOOL HINGE, STOOL ROTARY MECHANISM, STOOL WING NUT FIGURE 2. Storage comportment, key hole angle, and ink tray. IX-2843A( 11 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-