Valves, Nonpowered - Singapore (SG)
Federal Supply Class (FSC): 4820
NATO Supply Classification Class (NSC): 4820
Federal Supply Group (FSG): 48 Valves
NATO Supply Classification Group (NSG): 48 Valves
Items Managed by Singapore (SG) - NCB is 32
Page 2 of 2
NSN Format for Valves, Nonpowered
Codified by Singapore
| 48 | 20 | 32 | XXX | XXXX | |||
|---|---|---|---|---|---|---|---|
| Group FSG | Class | NCB | Identifier | ||||
| FSC Federal Supply Class | NIIN | ||||||
| NSN | |||||||
NATO Supply Class 4820 is a classification within NATO Supply Group 48, which is specifically for valves. More specifically, NATO Supply Class 4820 is for nonpowered valves.
Valves are mechanical devices used to control the flow of fluids (liquids, gases, or slurries) through a system of pipes or tubes. They are essential components in various industries, including manufacturing, oil and gas, water treatment, and many others.
Nonpowered valves, as the name suggests, do not require external power sources to operate. They rely on manual or mechanical means to control the flow of fluids. This can include hand-operated valves, lever-operated valves, or valves that are actuated by mechanical systems such as springs or diaphragms.
NATO Supply Class 4820 includes a wide range of nonpowered valves, such as gate valves, globe valves, check valves, ball valves, butterfly valves, and many others. These valves are designed to meet specific requirements for different applications, including controlling the flow rate, regulating pressure, preventing backflow, or isolating sections of a system.
The classification of valves into NATO Supply Groups and Classes helps standardize the identification and categorization of these essential components for military and defense purposes. It ensures that the right valves can be easily identified, procured, and used in various military operations and equipment.
If you need more specific information about a particular type of nonpowered valve within NATO Supply Class 4820, please let me know, and I'll be happy to assist you further.

Includes Automatic Nonpowered Valves; Gate, Globe, Angle, Check, and Relief Valves; Cocks.
Excludes Fire Hydrants (FSC 4210); Sprinkler Heads (FSC 4210); Valves specifically designed for use with fire fighting Equipment (FSC 4210); plumbing equipment, and the like (FSC 4540).
Note-This group may include specially designed valves for use on individual types of equipment or systems. Excluded are such items as tire valves, engine intake and exhaust valves, explosive valves, carburetor valves, water mixing valves, and flush valves.
Frequently Asked Questions(FAQ) for Federal Supply Class 4820
- What is Federal Supply Class 4820?
- FSC 4820 is the Federal Supply Class (formally known as NATO Supply Classification Class NSC 4820) in the USA for supply items codified in the category of Valves, Nonpowered.
- What is NATO Supply Classification Class 4820?
- NSC 4820 is the NATO Supply Classification Class (also known as Federal Supply Class FSC 4820 in the USA) for supply items codified in the category of Valves, Nonpowered.
- Which Federal Supply Group is FSC 4820 in?
- FSC 4820 is in Federal Supply Group (FSG) 48 which contains Valves.
- Which NATO Supply Classification Group is NSC 4820 in?
- NSC 4820 is in NATO Supply Classification Group (NSG) 48 which contains Valves.
Supply Items Included in Federal Supply Class 4820
- What is a Gate Valve? 47 Items
- A Gate Valve (VALVE,GATE) is a valve having a flat or tapered disk (gate) which moves transversely to the axis of flow by rotating or sliding movements of the stem to open or close the orifice. It may also contain an oval or rectangular shaped slide which may be manually, motor, or pressure operated through the means of an arm or arm assembly. The body flange may be designed to accommodate tube type connectors. It may or may not contain thermal relief features. Includes valve (gate) specifically designed for the control of fluid systems in aircraft or missiles.
- What is a Check Valve? 63 Items
- A Check Valve (VALVE,CHECK) is a valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
- What is a Safety Relief Valve? 18 Items
- A Safety Relief Valve (VALVE,SAFETY RELIEF) is a valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes VALVE (1), RELIEF, PRESSURE AND TEMPERATURE.
- What is a Butterfly Valve? 17 Items
- A Butterfly Valve (VALVE,BUTTERFLY) is a valve that controls flow by a circular disk, or a pair of semicircular disks, attached to a common spindle or lever turning on a diametral axis.
- What is a Ball Valve? 25 Items
- A Ball Valve (VALVE,BALL) is a multi-ported, nonlubricated valve designed to provide straight through flow or ability to direct a number of flows or pressure through a single valve. The flow is controlled by the rotation of a ported ball within a suitable ported seat(s). The ball is usually engaged by a stem. It is normally operated in an open or closed position. Excludes VALVE, CHECK.
- What is a Valve Seat? 15 Items
- A Valve Seat (SEAT,VALVE) is a replaceable item designed to provide a stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see INSERT, ENGINE VALVE SEAT.
- What is a Flow Control Valve? 15 Items
- A Flow Control Valve (VALVE,FLOW CONTROL) is an inline or cartridge type item designed to control the flow of fluids within a closed system. Excludes items actuated by a predetermined pressure and/or temperature, items designed for use with breathing gasses, or those designed to vent or calibrate fluids.
- What is a Valve Assembly? 12 Items
- A Valve Assembly is an assembly of items consisting of two or more complete valves on a common mounting; mounted on each other; or joined together with fitting(s), hose(s), tube(s), pipe(s), or the like. For items consisting of two or more valves in a common body, See VALVE ASSEMBLY, MANIFOLD.
- What is a Directional Control Linear Valve? 12 Items
- A Directional Control Linear Valve (VALVE,LINEAR,DIRECTIONAL CONTROL) is a manually or power operated valve having three or more ports. The direction of the flow through the various ports is controlled by either one or more reciprocating slide(s) or spool(s) with recess areas which mate with ports in an integral or replaceable ported sleeve, or one or more poppet(s). It is designed to change the direction of fluid flow from one valve port to another. An off (no flow) position is not a flow pattern. The valve is designed to actuate various components of a fluid system. A power operated valve may have a manual override. For items which stop, start, or change the flow of fluid, see: VALVE, SOLENOID. Excludes VALVE, PLUG. See also SERVOVALVE, HYDRAULIC; BODY SECTION, WORKING, LINEAR DIRECTIONAL CONTROL VALVE; and VALVE ASSEMBLY.
Stock Items From Supply Class 4820 Page 2 of 2
- 320737801
- VF1-10-240
- RNCC: 3 | RNVC: 2
- 320737999
- VF1-10-204
- RNCC: 3 | RNVC: 2
- 320737899
- VF1-10-145
- RNCC: 3 | RNVC: 2
- 320737912
- VF1-10-043
- RNCC: 3 | RNVC: 2
- 320739411
- NCCB-LCN
- RNCC: 3 | RNVC: 2
- NCCB-LCN
- RNCC: 5 | RNVC: 2
- 320739364
- P3-14342 CACA-LHN
- RNCC: 3 | RNVC: 2
- P3-14342 CACA-LHN
- RNCC: 5 | RNVC: 2
- 320737768
- VF1-10-022
- RNCC: 3 | RNVC: 2
- 320739519
- PBHB-LAN-HBK/T
- RNCC: 3 | RNVC: 2
- PBHB-LAN-HBK/T
- RNCC: 5 | RNVC: 2
- 320737775
- VF1-10-238
- RNCC: 3 | RNVC: 2
- 320737877
- VF1-10-151
- RNCC: 3 | RNVC: 2
- 320739337
- NSAB-KXV-BT
- RNCC: 3 | RNVC: 2
- NSAB-KXV-BT
- RNCC: 5 | RNVC: 2
- 320839776
- NO PRIMARY REF 32-083-9776
- RNCC: 3 | RNVC: 2
- 501023002
- RNCC: 5 | RNVC: 2
- 501023002
- RNCC: 5 | RNVC: 2
- 320737883
- VF1-10-088
- RNCC: 3 | RNVC: 2
- 320737819
- VF1-10-242
- RNCC: 3 | RNVC: 2
- 320826500
- NO PRIMARY REF 32-082-6500
- RNCC: 3 | RNVC: 2
- VV058E202122
- RNCC: 5 | RNVC: 2
- 320739517
- NCEB-LCN-GBZ/S
- RNCC: 3 | RNVC: 2
- NCEB-LCN-GBZ/S
- RNCC: 5 | RNVC: 2
- 320737737
- VF1-10-040
- RNCC: 3 | RNVC: 2
- 320737507
- VF1-10-051
- RNCC: 3 | RNVC: 2
- 320737723
- VF1-10-050
- RNCC: 3 | RNVC: 2
- 320739467
- 4WRZ16-WI-6X/6AG24NETZ4/D3M
- RNCC: 3 | RNVC: 2
- 4WRZ16-WI-6X/6AG24NETZ4/D3M
- RNCC: 5 | RNVC: 2
- 320826660
- NO PRIMARY REF 32-082-6660
- RNCC: 3 | RNVC: 2
- TSA01E900007
- RNCC: 5 | RNVC: 2
- 320739540
- KHM 1 1/2"-1-1-1-2-AG(01)-G
- RNCC: 3 | RNVC: 2
- KHM 1 1/2"-1-1-1-2-AG(01)G
- RNCC: 5 | RNVC: 2
- 320826618
- NO PRIMARY REF 32-082-6618
- RNCC: 3 | RNVC: 2
- TSA01U400002
- RNCC: 5 | RNVC: 2
- 320826671
- NO PRIMARY REF 32-082-6671
- RNCC: 3 | RNVC: 2
- TSA01E900012
- RNCC: 5 | RNVC: 2
- 320771729
- VV052E204121
- RNCC: 3 | RNVC: 2
- 320739382
- COJA-XCN-K6Y/S
- RNCC: 3 | RNVC: 2
- COJA-XCN-K6Y/S
- RNCC: 5 | RNVC: 2
- 320611556
- LAM 271
- RNCC: 3 | RNVC: 2
- 320678449
- K124618
- RNCC: 3 | RNVC: 2
- IMAV RKVE-25
- RNCC: 5 | RNVC: 9
- 320613548
- IL10-F-15SV/158G5173
- RNCC: 3 | RNVC: 2
- LAU 318
- RNCC: 5 | RNVC: 2
- 320678017
- 5001-01-13-15
- RNCC: 3 | RNVC: 2
- 5001-01-13T-15
- RNCC: 5 | RNVC: 2
- 320737761
- VF1-10-172
- RNCC: 3 | RNVC: 2
- 320737731
- VF1-10-182
- RNCC: 3 | RNVC: 2
- 320739372
- NCCB-LCN-GBY/S
- RNCC: 3 | RNVC: 2
- NCCB-LCN-GBY/S
- RNCC: 5 | RNVC: 2