5249-786

View detailed technical data, stock status, and sourcing information for: 5249-786
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-098-9118

Item Name Code

05488

Assigment Date

08/09/1980 (45 years ago)

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. Excludes:bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.

plain (pipe) 1st end connection style, -40.0 fahrenheit 1st response250.0 fahrenheit 2nd response maximum operating temp, poppet flow control device, right-hand 1st end thread direction, automatic valve operation method

Product Characteristics

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

Thread Direction: right-hand 1st end
Flow Control Device: poppet
Maximum Operating Temp: -40.0 fahrenheit 1st response250.0 fahrenheit 2nd response
Connection Style: plain (pipe) 1st end
Valve Operation Method: automatic
Connection Type: threaded external pipe 1st end
Maximum Operating Pressure: 200.0 pounds per square inch single response
Nominal Thread Size: 0.250 inches 1st end
Opening Pressure Setting: 10.0 pounds per square inch
Material: copper alloy bodyrubber butadiene-acrylonitrile class nbr seat
Media For Which Designed: air 1st responseacetylene 2nd responseammonia, gaseous 3rd responserefrigerant 12 4th responsehydrogen 5th response
Style Designator: straight thru
Thread Series Designator: npt 1st end
Furnished Items And Quantity: 1 deflector cap

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
13G3-3	Safety Relief Valve
5249-786	Safety Relief Valve
D559B-2M-10	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-098-9118?

The FSCG of the NSN 4820-01-098-9118 is 4820

Does the NSN 4820-01-098-9118 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-098-9118 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 4820-01-098-9118 contain precious materials?

Precious metal content is unknown

Does NSN 4820-01-098-9118 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 4820-01-098-9118 was assigned to the Federal Catalog?

It was assigned 45 years ago, on Sat, Aug 9, 1980