20158-11

View detailed technical data, stock status, and sourcing information for: 20158-11
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-470-5130

Item Name Code

32528

Assigment Date

12/22/1999 (26 years ago)

An item designed to enclose the flywheel and related parts, clutch, plates, ring gear and the like on the end of the cylinder block. May be fabricated from a single casting or compound of two separate castings and may include mounting facilities.

25.875 inches nominal overall length, relief valve type for which designed, nimitz class cvn end item identification, 6.000 inches and 10.000 inches valve size for which designed, 2.000 inches nominal largest outside diameter

Product Characteristics

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

Overall Length: 25.875 inches nominal
End Item Identification: nimitz class cvn
Largest Outside Diameter: 2.000 inches nominal
Valve Type For Which Designed: relief
Valve Size For Which Designed: 6.000 inches and 10.000 inches
Stem Actuating End Type: threaded externally
Valve Model Number For Which Designed: 5055ra140009
Special Features: "stem alone (pc 11a) is 7/8" dia x 23 3/4" length, threaded externally both ends-nsn 4820-01-141-7177; attached retainer (pc 11b) 1 1/4" dia-end 1-bored & tapped for stem, 2" dia-end 2-bored & tapped; retainer overall length is 3"; stem & retainer astm a582, pin (pc 11c)-commercial sst"
Material: steel corrosion resisting
Material Document And Classification: astm a582, ty416 assn std single material response
Furnished Items And Quantity: 1 pin and 1 retainer

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
10353002000	Fluid Valve Stem
20158-11	Fluid Valve Stem
A10353.002	Fluid Valve Stem

FAQs

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

What is the FSCG of the NSN 4820-01-470-5130?

The FSCG of the NSN 4820-01-470-5130 is 4820

Does the NSN 4820-01-470-5130 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-470-5130 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 4820-01-470-5130 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-470-5130 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 4820-01-470-5130 was assigned to the Federal Catalog?

It was assigned 26 years ago, on Wed, Dec 22, 1999