1787 SZ 4 IN

View detailed technical data, stock status, and sourcing information for: 1787 SZ 4 IN
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for part 1787 SZ 4 IN to receive an up to date pricing and availability quote by email.

Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-268-8773

Item Name Code

05482

Assigment Date

01/01/1961 (65 years ago)

bolted bonnet attachment method, 9.000 inches flange diameter, 8 bolt hole quantity, inside screw bonnet type, manual 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.

Flange Diameter: 9.000 inches
Bonnet Type: inside screw
Bonnet Attachment Method: bolted
Bolt Hole Quantity: 8
Valve Operation Method: manual
Connection Type: flange, round w/holes
Features Provided: bonnet packing
Valve Size: 4.000 inches
Maximum Operating Pressure And Media For Which Designed: 125.0 pounds per square inch steam and 200.0 pounds per square inch water-oil-gas
Stem Type: nonrising
Maximum Operating Temp And Media For Which Designed: 450.0 fahrenheit steam and 450.0 fahrenheit water-oil-gas
Face To Face Distance: 9.000 inches
Flange Face Design: plain
Inlet Relationship With Outlet: identical
Pressure Class: 125.0 pounds
Material: copper alloy 836 seat
Material: copper alloy 836 disk
Material: copper alloy stem
Material: iron cast uns f12102 body
Material Document And Classification: astm a126 class b assn std single material response body
Material Document And Classification: astm b147alloy 7a assn std single material response stem
Material Document And Classification: astm b62 assn std single material response disk
Material Document And Classification: astm b62 assn std single material response seat

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-057-3171	No Name Available	09/01/2023
4820-00-268-8772	No Name Available	01/01/1989
4820-00-725-8659	No Name Available	11/01/1975
4820-00-846-9083	No Name Available	11/08/1968
4820-00-865-7764	No Name Available	11/01/1975
4820-00-866-4586	No Name Available	01/01/1960
4820-01-119-0514	No Name Available	11/01/2007
4820-01-323-7477	No Name Available	01/01/1995

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
125PSI SIZE 4IN NON RISING STEM	Gate Valve
1428AND1663	Gate Valve
1787 SZ 4 IN	Gate Valve
62F-IB7	Gate Valve
8719F	Gate Valve
FIG 326 SIZE 4 IN	Gate Valve
G-612 4.0 IN	Gate Valve
WW1-58	Gate Valve

FAQs

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

What is the FSCG of the NSN 4820-00-268-8773?

The FSCG of the NSN 4820-00-268-8773 is 4820

Does the NSN 4820-00-268-8773 have a Schedule B code assigned?

Yes, the Schedule B code is 8481803010

Does NSN 4820-00-268-8773 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 4820-00-268-8773 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-268-8773 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 4820-00-268-8773 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961