NSN 20291B51SS

A flat metal or plastic item of various peripheral shapes having a solid (not laminated) cross-section. It is designed to maintain a predetermined distance between two surfaces. For round items without a hole having a solid rectangular cross-section use disk, solid, plain. For round or hexagonal items with only one hole centrally located and with the length (thickness) exceeding 25 percent of the outside diameter or distance across peripheral flats, see spacer, sleeve. The thickness between the two parallel bearing surfaces must be 0.006 inch, (0.152 mm) or more for items less than 1/4 inch (6.35 mm) across the peripheral diameter, or smallest overall outside dimension, or must be 0.016 inch (0.406 mm) or more for items 1/4 inch (6.35 mm) or greater across the peripheral diameter or smallest overall outside dimension. For items with a thickness less than those indicated above, see shim. For items with one hole centrally located conforming to the above dimensional criteria use washer, flat or spacer, ring as applicable. When thickness and/or outsidediameter or smallest overall outside dimension is designated as a tolerance /dimension the maximum dimension will be used to determine compliance. Excludes:gasket; insulator (as modified) and mounting pad, electrical-electronic component.

automatic valve operation method, unable to decode material, +15.0 to 19.0 pounds per square inch adjustable pressure range.

NSN 4820-01-151-3687 Datasheet

(NSN) National Stock Number

4820-01-151-3687

(FSG) Federal Supply Group

48 - Valves

(FSC) Federal Supply Classification

4820 - Nonpowered Valves

(NIIN) National Item Identification Number

01-151-3687

Requires Demilitarization

Yes

(INC) Item Name Code

05488

Date

Sat, Apr 16, 1983

Schedule B Code

8481400000

Adjustable Pressure Range

+15.0 to 19.0 pounds per square inch

Material

unable to decode

Valve Operation Method

automatic

Identification

Demilitarization Code

Q - "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)"

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

0005488

Cross Reference

CAGE Codes

15187

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team

U.s./canadian manufacturers

01343

Anderson Greenwood Lp Dba Anderson Greenwood Crosby

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

P - 77.5

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

64490

Water Commodity

594 - Pumps and parts, (machinery and parts),(less than 35 feet)

National Motor Freight Classification Item Number

127220

Schedule B & Trade

Schedule B

8481-40-0000

Description

safety or relief valves

End Use

21180 - Industrial machines, other

Unit of Quantity

NO

USDA

Yes

(SITC) Standard International Trade Classification

74740

(NAICS) North American Industrial Classification System

332911

Questions & Answers

1. What is the FSCG of the NSN 4820-01-151-3687?

   The FSCG of the NSN 4820-01-151-3687 is 4820

2. Does the NSN 4820-01-151-3687 have a Schedule B code assigned?

   Yes, the Schedule B code is 8481400000

3. Does NSN 4820-01-151-3687 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)"

4. Does NSN 4820-01-151-3687 contain precious materials?

   Item does not contain precious metal.

5. Does NSN 4820-01-151-3687 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.

6. When the NSN 4820-01-151-3687 was assigned to the Federal Catalog?

   It was assigned 43 years ago, on Sat, Apr 16, 1983