C1520

View detailed technical data, stock status, and sourcing information for: C1520
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 C1520 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

4820-00-216-9014

Item Name Code

22113

Assigment Date

01/01/1961 (65 years ago)

An open coiled spring, wound in various forms and from different shapes and types of materials and finished at the ends, designed to provide resistance to compression forces. Excludes:springs designed for thermal actuation (springs in which the torsion forces are designed to be counteracted by changes in temperature) and spring, reinforcing, hose.

0.340 inches minimum and 0.370 inches maximum single threaded portion thread length, 0.312 inches nominal flange seat to disk end height, 2a single threaded portion thread class, 3.880 inches nominal flange diameter, 3.000 inches minimum and 3.004 inches maximum body inside diameter

Product Characteristics

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

Thread Class: 2a single threaded portion
Thread Length: 0.340 inches minimum and 0.370 inches maximum single threaded portion
Flange Diameter: 3.880 inches nominal
Body Inside Diameter: 3.000 inches minimum and 3.004 inches maximum
Flange Seat To Disk End Height: 0.312 inches nominal
Under Flange Height: 0.500 inches nominal
Seat Angle In Deg: 5.000 nominal
Thread Quantity Per Inch: 16 single threaded portion
Nominal Thread Size: 3.500 inches single threaded portion
Seating Surface Shape: angular
Material: steel overall
Material Document And Classification: fed std 66,aisi 303/sae 30303 fed std single material response overall
Style Designator: threaded flanged
Thread Series Designator: un single threaded portion

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-01-070-3397	No Name Available	09/01/1986

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
61024ITEM15	Valve Seat
C1520	Valve Seat
C1520A	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-00-216-9014?

The FSCG of the NSN 4820-00-216-9014 is 4820

Does the NSN 4820-00-216-9014 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-216-9014 require demilitarization?

"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"

Does NSN 4820-00-216-9014 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-216-9014 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 4820-00-216-9014 was assigned to the Federal Catalog?

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