DLA A-A-59440 7 B-2012 VALVE SHUT-OFF SCREW STEM THREADED TYPE 150 PSI BRASS WATER OIL AND GAS (WOG) NPTF-1 THREADS.pdf
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1、AMSC N/A FSC 4820 A-A-59440/7B 21 May 2012 SUPERSEDING A-A-59440/7A 23 May 2005 COMMERCIAL ITEM DESCRIPTION SPECIFICATION SHEET VALVE, SHUT-OFF, SCREW STEM, THREADED TYPE, 150 PSI, BRASS, WATER, OIL, AND GAS (WOG), NPTF-1 THREADS The General Services Administration has authorized the use of this com
2、mercial item description for all federal agencies. The complete requirements for procuring the valve, shut-off, screw stem, threaded type, 150 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. CLASSIFICATION/PA
3、RT 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. Valves, shut-off, screw stem, threaded ty
4、pe, 150 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 1/4 inch with NPTF-1 threads. Intended application. This item is for use in liquid and gas systems where pressu
5、res do not exceed 150 psig (10.3 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 valve should not limit procurement unless the end item app
6、lications 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 /07 - 030 I I I _I_ _I_ _I_ CID number Applicable Dash number CID spec sheet (see figure 1) (two digits) P
7、rovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59440/7B 2 Threads. Threads are dryseal NPTF-1 in accordance with A-A-59440. NPTF-1 dryseal threads. NPTF-1 dryseal threads seal pressure tight joints without sealant compound. The engineering princi
8、ple and design are explained in ASME B1.20.3. Materials. Brass. Brass shall be in accordance with the following commercial standards: ASTM B16/B16M ASTM B121/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 B
9、176 ASTM B770 SAE AMS4862 ASTM B61 ASTM B271 SAE AMS4890 ASTM B62 ASTM B369 Handle. Handle may be steel hot rolled or cold rolled in accordance with QQ-S-698 or a commonly accepted industry standard. Protective coating. a. Brass: None. b. Steel: (1) Cadmium in accordance with SAE-AMS-QQ-P-416, type
10、II, class 2. (2) Zinc in accordance with ASTM B633, type II, 12.7 m (50 microinches) minimum. Caution: Cadmium shall not be used in potable water or oxygen systems. Brass shall not have any lead contents. Test pressures. a. Shell: 150 psig (10.3 bar). b. Seat: 50 psig (3.45 bar). Provided by IHSNot
11、for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59440/7B 3 Dash number Handle plating A pipe thread NPTF-1 B max (mm) C max (mm) D diameter min (mm) E diameter min (mm) F diameter max (mm) G max (mm) 030 Zinc 1/8-27 1.13 (28.7) 1.03 (26.1) .50 (12.7) .16 (4.0) .19
12、(4.8) 1.39 (35.3) 031 Zinc 1/4-18 1.62 (41.1) 1.27 (32.3) .69 (17.5) .16 (4.0) .19 (4.8) 1.39 (35.3) 032 Cadmium 1/8-27 1.13 (28.7) 1.03 (26.1) .50 (12.7) .16 (4.0) .19 (4.8) 1.39 (35.3) 033 Cadmium 1/4-18 1.62 (41.1) 1.27 (32.3) .69 (17.5) .16 (4.0) .19 (4.8) 1.39 (35.3) FIGURE 1. Valve, plug, thre
13、e way, threaded type. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59440/7B 4 NOTES: 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. Measur
14、ement across flats of hexagonal wrench pad may be a standard measurement. 5. Flow of liquid should be toward the valve seat not toward the stem threads. FIGURE1. Valve, plug, three way, threaded type - Continued. NOTES. PIN. The PIN should be used for Government purposes to buy commercial products t
15、o this CID specification sheet. See the classification section for PIN format example. Source of documents. Commercial Item Description A-A-59440 - Cock-Valves and Valves, General Requirements for Federal Specification QQ-S-698 - Steel, Sheet and Strip, Low Carbon (Copies of these documents are avai
16、lable 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 ASME INTERNATIONAL ASME B1.20.3 - DrySeal Pipe Threads (Copies of these documents are available online at http:/w
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