51156E

View detailed technical data, stock status, and sourcing information for: 51156E
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-939-8143

Item Name Code

22113

Assigment Date

11/16/1965 (60 years ago)

A replaceable device designed to remove solid particles from flowing liquids. The removal of particles is accomplished by porous material (metallic or non-metallic), wire mesh, perforated metal, or the like, constructed so the liquid can flow through the device while the solid particles are retained. It is designed to fit into a strainer, sediment (or similar cavity). It may have a reinforcement to prevent collapsing, distorting or rupturing. The degree of particles removed must be nominally rated at 50 microns, or more, or absolutely rated at 75 microns, or more. See also filter element, fluid.

0.250 inches nominal single threaded portion thread length, 45.000 nominal seat angle in deg, 0.350 inches nominal overall height, 2a single threaded portion thread class, 0.733 inches nominal 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: 0.250 inches nominal single threaded portion
Overall Height: 0.350 inches nominal
Body Inside Diameter: 0.733 inches nominal
Seat Angle In Deg: 45.000 nominal
Thread Quantity Per Inch: 20 single threaded portion
Nominal Thread Size: 1.125 inches single threaded portion
Seating Surface Shape: angular
Special Features: internal octagon wrenching facility,0.656 in. flat to flat distance
Material: plastic polyamide (nylon) overall
Style Designator: plain threaded
Thread Series Designator: un single threaded portion

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
51156E	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-00-939-8143?

The FSCG of the NSN 4820-00-939-8143 is 4820

Does the NSN 4820-00-939-8143 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-939-8143 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 4820-00-939-8143 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-939-8143 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 4820-00-939-8143 was assigned to the Federal Catalog?

It was assigned 60 years ago, on Tue, Nov 16, 1965