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NSN B-1221-E

Stop-Check Valve

A cylindrical item with or without flange(s), designed to be inserted in a pump casing or secured to the impeller of a centrifugal pump. It is used for the purpose of providing a close running clearance between the impeller and casing in order to prevent or overcome leakage due to erosion. It may also be used as a diffuser ring in the suction and discharge throats of valves.

13.000 inches face to face distance, bonnet packing features provided, inside screw bonnet type, bolted bonnet attachment method, disk flow control device.

NSN 4820-00-138-3870 Datasheet

(NSN) National Stock Number
4820-00-138-3870
(FSG) Federal Supply Group
48 - Valves
(FSC) Federal Supply Classification
4820 - Nonpowered Valves
(NIIN) National Item Identification Number
00-138-3870
Requires Demilitarization
Yes
(INC) Item Name Code
05486
Date
Mon, Aug 9, 1971
Bonnet Attachment Method
bolted
Bonnet Type
inside screw
Face To Face Distance
13.000 inches
Features Provided
bonnet packing
Flow Control Device
disk
Mounting Position
horizontal or vertical
Renewable Seat Ring Type
threaded
Style Designator
straight thru flanged ends
Valve Operation Method
manual
Valve Size
5.000 inches

Identification

Demilitarization Code
A - 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.
Precious Metals Indicator
A - Item does not contain precious metal.
Hazardous Metals Indicator
N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
Pseudo Item Name Code
0005486

Cross Reference

CAGE Codes

76364
Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
U.s./canadian manufacturers
11859
Hunt Valve Company, Inc. Dba Waeco Valve Division
U.s./canadian manufacturers
30263
Pima Valve, Llc
U.s./canadian manufacturers
95321
Clow Corp Marine Valve Products Div
U.s./canadian manufacturers
63686
The Walworth Company
U.s./canadian manufacturers

Freight Information

Air Commodity
VZ -
Air Dimension
A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
National Motor Freight Class Rating
W - Rating variable
Special Handling
9 - Other or no special handling required (sh)
Type of Cargo
Z - No special type of cargo code applicable
Uniform Freight Classification Item Number
29300
Water Commodity
576 - Metal and metal products, nos, (less than 35 feet)
National Motor Freight Classification Item Number
051080

Questions & Answers

  1. What is the FSCG of the NSN 4820-00-138-3870?

    The FSCG of the NSN 4820-00-138-3870 is 4820

  2. Does NSN 4820-00-138-3870 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.

  3. Does NSN 4820-00-138-3870 contain precious materials?

    Item does not contain precious metal.

  4. Does NSN 4820-00-138-3870 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.

  5. When the NSN 4820-00-138-3870 was assigned to the Federal Catalog?

    It was assigned 55 years ago, on Mon, Aug 9, 1971

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