SS-1KM4-S4-A

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-091-7995

Item Name Code

05483

Assigment Date

03/13/1980 (46 years ago)

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.

disk flow control device, 3a 1st end thread class, right-hand 2nd end thread direction, packing retaining bonnet type, right-hand 1st end thread direction

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 3a 1st end
Thread Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Flow Control Device: disk
Bonnet Type: packing retaining
Maximum Operating Temp: 250.0 fahrenheit single response
Connection Style: inverted flare (tube) 1st end
Connection Style: plain (pipe) 2nd end
Valve Operation Method: manual
Connection Type: threaded external pipe 2nd end
Connection Type: threaded external tube 1st end
Maximum Operating Pressure: 3000.0 pounds per square inch single response
Nominal Thread Size: 0.250 inches 2nd end
Nominal Thread Size: 0.438 inches 1st end
Seat Angle: 30.0 degrees 1st end
Special Features: 0.172 in. size orifice
Material: plastic polytetrafluoroethylene packing
Material: steel comp 316 body
Material: steel comp 316 flow control device
Material: steel comp 316 seat
Material: steel comp 316 stem
Material Document And Classification: 66 fed std single material response flow control device
Material Document And Classification: 66 fed std single material response body
Material Document And Classification: 66 fed std single material response seat
Material Document And Classification: 66 fed std single material response stem
Media For Which Designed: gas, natural single response
Style Designator: angle
Thread Series Designator: npt 2nd end
Thread Series Designator: unf 1st end
Furnished Items And Quantity: 1 nut and 2 ferrule

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
4M4Z-V4AK-SS	Angle Valve
5020590 ITEM 38	Angle Valve
SS-1KM4-S4-A	Angle Valve

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 4820-01-091-7995?

The FSCG of the NSN 4820-01-091-7995 is 4820

Does the NSN 4820-01-091-7995 have a Schedule B code assigned?

Yes, the Schedule B code is 8481803090

Does NSN 4820-01-091-7995 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 4820-01-091-7995 contain precious materials?

Precious metal content is unknown

Does NSN 4820-01-091-7995 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 4820-01-091-7995 was assigned to the Federal Catalog?

It was assigned 46 years ago, on Thu, Mar 13, 1980