DLA A-A-59440 8 B-2012 COCK-VALVE SHUT-OFF SCREW STEM THREADED TYPE 50 PSI BRASS WATER OIL AND GAS (WOG) NPTF-1 THREADS.pdf
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1、AMSC N/A FSC 4820 A-A-59440/8B 21 May 2012 SUPERSEDING A-A-59440/8A 23 May 2005 COMMERCIAL ITEM DESCRIPTION SPECIFICATION SHEET COCK-VALVE, SHUT-OFF, SCREW STEM, THREADED TYPE, 50 PSI, BRASS, WATER, OIL, AND GAS (WOG), NPTF-1 THREADS The General Services Administration has authorized the use of this
2、 commercial item description for all federal agencies. The complete requirements for procuring the cock-valve, shut-off, screw stem, threaded type, 50 psi, brass, water, oil and gas (WOG), NPTF-1 threads described herein shall consist of this document and the issue in effect of A-A-59440. CLASSIFICA
3、TION/PART OR IDENTIFICATION NUMBER (PIN). This commercial item description (CID) specification sheet uses a classification system which is included in the PIN as shown in the following example (see NOTES). SALIENT CHARACTERISTICS. Interface and physical dimensions. Cock-valves, shut-off, screw stem,
4、 threaded type, 50 psi, brass, water, oil and gas (WOG), NPTF-1 threads supplied to this CID specification sheet shall be as specified herein (see figure 1). Sizes. Nominal sizes of 1/8 inch through 1/2 inch with NPTF-1 threads. Intended application. This item is for use in liquid and gas systems wh
5、ere pressures do not exceed 50 psig (3.45 bar) at 150F (65.6C) and the liquid or gas is compatible with brass. Permissible variations in dimensions. Figure 1 lists the permissible variations in dimensions for each size. The external dimensions of the cock-valve should not limit procurement unless th
6、e end item applications restrict these dimensions. Optional designs. The illustration is for identification purposes only, it is not intended to restrict designs or shapes not dimensioned. INCH-POUND AA59440 /08 - 032 I I I _I_ _I_ _I_ CID number Applicable Dash number CID spec sheet (see figure 1)
7、(two digits) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59440/8B 2 Threads. Threads are dryseal NPTF-1 in accordance with A-A-59440. Materials. Brass. Brass shall be in accordance with the following commercial standards: ASTM B16/B16M ASTM B
8、121/B121M ASTM B505/B505M SAE AMS4845 ASTM B22 ASTM B124/B124M ASTM B584 SAE AMS4855 ASTM B30 ASTM B148 ASTM B763 SAE AMS4860 ASTM B36/B36M ASTM B176 ASTM B770 SAE AMS4862 ASTM B61 ASTM B271 SAE AMS4890 ASTM B62 ASTM B369 Spring material. Spring shall be phosphor bronze in accordance with ASTM B134/
9、B134M, ASTM B159/B159M, or ASTM B206/B206M. Spring is phosphor bronze to avoid possible spark and explosion. Protective coating. Brass: None. Caution: Brass shall not have any lead contents. Test pressures. a. Shell: 80 psig (5.5 bar). b. Seat: 10 psig (0.69 bar). Provided by IHSNot for ResaleNo rep
10、roduction or networking permitted without license from IHS-,-,-A-A-59440/8B 3 Dash Number A pipe thread NPTF-1 B max (mm) C max (mm) D across flats .020 (0.51 mm) E diameter min (mm) F max (mm) G max (mm) 032 1/8-27 1.75 (44.5) 1.94 (49.3) 0.56 or 0.75 (142 or 19.1) .16 (4.1) 1.38 (35.1) 0.38 (9.7)
11、033 1/4-18 2.12 (53.8) 2.06 (52.3) 0.75 or 0.88 (19.1 or 22.4) .19 (4.8) 1.38 (35.1) 0.56 (14.2) 034 3/8-18 2.44 (62.0) 2.44 (62.0) 0.88 or 0.94 (22.4 or 23.9) .19 (4.8) 1.69 (42.9) 0.56 (14.2) 035 1/2 - 14 3.00 (76.2) 2.56 (65.0) 1.16 or 1.25 (29.5 or 31.8) 0.25 (6.4) 2.12 (54.0) 0.75 (19.1) NOTES:
12、 1. Dimensions are in inches. 2. Metric equivalents are given for information only. 3. Unless otherwise specified tolerances are .010 inch (0.25 mm). 4. Oval port having same cross sectional area is acceptable. FIGURE 1. Cock-valve, plug, three way, threaded type. Provided by IHSNot for ResaleNo rep
13、roduction or networking permitted without license from IHS-,-,-A-A-59440/8B 4 NOTES. PIN. The PIN should be used for Government purposes to buy commercial products to this CID specification sheet. See the classification section for PIN format example. Source of documents. COMMERCIAL ITEM DESCRIPTION
14、 A-A-59440 - Cock-Valves and Valves, General Requirements for (Copies of these documents are available online at https:/assist.daps.dla.mil/quicksearch/ or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) Other Publications ASTM INTERNATION
15、AL ASTM B16/B16M - Free-Cutting Brass Rod, Bar and Shapes for use in Screw Machines ASTM B22 - Bronze Castings for Bridges and Turntables ASTM B30 - Copper Alloys in Ingot Form ASTM B36/B36M - Brass Plate, Sheet, Strip, and Rolled Bar ASTM B61 - Steam or Valve Bronze Castings ASTM B62 - Composition
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