4820-01-197-9770

Find complete technical information, availability, and procurement data for: 4820-01-197-9770
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-197-9770

Item Name Code

27850

Assigment Date

12/31/1984 (41 years ago)

A cylindrical item which may have wrenching and/or driving facilities and/or shoulders. It is designed to be inserted in a drilled, tapped or a pretapped hole, or molded or pressed into soft material to reduce the size of a tapped hole; to provide threads; to add strength, and/or to prevent stripping. It is one of the following: (1) a one-piece, flanged or unflanged, internally threaded item which may have external threads, and/or serrations around the periphery of the collar, designed to engage a serrated lock ring which is not included with the item; (2) a one-piece precision coiled wire; (3) a two-piece item consisting of an internally threaded cylinder and a mating externally threaded part; or (4) a one-piece internally threaded item whose outside diameter is tapered and/or knurled and/or with fin(s). The internal thread of the item may have a locking feature. Excludes:items having a sleeve on on its under portion which can be clinched or crimped. Excludes:bushing,machine thread; nut,plain,knurled; nut,plain,round; nut,plain,clinch and nut,self-locking,clinch. See also nut,plain,plate

concave cross-sectional shape, steel corrosion resisting disk material, zzzy criticality code justification, 700.0 pressure pounds per square inch gage burst pressure, material will be in accordance with ships parts control center activity hx quality control,manufacturing and testing specifications reference number differentiating characteristics

Product Characteristics

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

Cross-Sectional Shape: concave
Criticality Code Justification: zzzy
Burst Pressure: 700.0 pressure pounds per square inch gage
Disk Material: steel corrosion resisting
Reference Number Differentiating Characteristics: material will be in accordance with ships parts control center activity hx quality control,manufacturing and testing specifications

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
82005001-1	Rupturable Disk
CAT 77-4006	Rupturable Disk
RB90-4IN-700PSI	Rupturable Disk

FAQs

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

What is the FSCG of the NSN 4820-01-197-9770?

The FSCG of the NSN 4820-01-197-9770 is 4820

Does the NSN 4820-01-197-9770 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-197-9770 require demilitarization?

Usml or ccl military items - demil required. Item managers,, equipment specialists, or product specialists must furnish special demilinstructions. (note 3).

Does NSN 4820-01-197-9770 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-197-9770 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 4820-01-197-9770 was assigned to the Federal Catalog?

It was assigned 41 years ago, on Mon, Dec 31, 1984