4820-01-487-8265

Find complete technical information, availability, and procurement data for: 4820-01-487-8265
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-487-8265

Item Name Code

05488

Assigment Date

08/20/2001 (24 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes:bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.

spring disk loading method, disk flow control device, 2.000 inches all ends nominal pipe size accommodated, bolted bonnet attachment method, inside spring bonnet type

Product Characteristics

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

Nominal Pipe Size Accommodated: 2.000 inches all ends
Flow Control Device: disk
Bonnet Type: inside spring
Bonnet Attachment Method: bolted
Disk Loading Method: spring
Renewable Seat Ring Type: pressed-in
Maximum Operating Temp: 165.0 fahrenheit single response
End Item Identification: los angeles class ssn (688);virginia class cgn (41)
Connection Style: socket all ends
Valve Operation Method: automatic
Connection Type: unthreaded internal pipe all ends
Features Provided: bonnet packing
Adjustable Pressure Range: +401.0 to 557.0 pounds per square inch
Part Name Assigned By Controlling Agency: "2" relief valve type 1771-t"
Special Features: "this "03" variation of cage 01343 dwg sw122 valve deviates from standard valve per cage 15187 dwg 17055 (certification data sheet); deviation includes spring p/n 05344-200ys-292 and pressure range of 401 to 557 psig; both end connections include tailpiece plus union nut according to qq-n-281; nha valve ball 0"
Material: copper alloy body
Material: nickel alloy flow control device
Material: nickel alloy seat
Material: nickel alloy stem
Material: plastic polytetrafluoroethylene packing
Material Document And Classification: ams 3656/3660 assn std single material response packing
Material Document And Classification: astm b-164 assn std single material response stem
Material Document And Classification: astm b-164 assn std single material response flow control device
Material Document And Classification: mil-c-20159 uns c96400 mil std single material response body
Material Document And Classification: qq-n-288 comp a mil spec single material response seat
Media For Which Designed: air single response
Style Designator: angle
Furnished Items And Quantity: 2 tailpiece and 2 nut and 1 locking device

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
SW122D03E0401,CDS17055	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-487-8265?

The FSCG of the NSN 4820-01-487-8265 is 4820

Does the NSN 4820-01-487-8265 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-487-8265 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 4820-01-487-8265 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-487-8265 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 4820-01-487-8265 was assigned to the Federal Catalog?

It was assigned 24 years ago, on Mon, Aug 20, 2001