TYPE FF 2751 1.00 IN.

View detailed technical data, stock status, and sourcing information for: TYPE FF 2751 1.00 IN.
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-448-1419

Item Name Code

05488

Assigment Date

08/21/1997 (28 years ago)

A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes:disk, valve, graphite impregnated and lubricated items.

4 all ends bolt hole quantity, disk flow control device, 100.0 fahrenheit 1st response maximum operating temp, strategic sealift conversion ships class end item identification, 300.0 fahrenheit 2nd response maximum operating temp

Product Characteristics

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

Flow Control Device: disk
Bolt Hole Quantity: 4 all ends
Maximum Operating Temp: 100.0 fahrenheit 1st response
Maximum Operating Temp: 300.0 fahrenheit 2nd response
End Item Identification: strategic sealift conversion ships class
Valve Operation Method: automatic or manual
Flange Shape: round with holes all ends
Connection Type: flange all ends
Mounting Facility: bracket
Valve Size: 1.000 inches
Adjustable Pressure Range: +45.0 to 55.0 pounds per square inch
Maximum Operating Pressure: 250.0 pounds per square inch 2nd response
Maximum Operating Pressure: 285.0 pounds per square inch 1st response
Nominal Outside Diameter: 4.250 inches all ends
Nominal Thickness: 0.438 inches all ends
First Connection Face To Centerline Distance: 3.500 inches
Bolt Hole Nominal Diameter: 0.625 inches all ends
Second Connection Face To Centerline Distance: 3.250 inches
Bolt Circle Nominal Diameter: 3.125 inches all ends
Flange Face Design: raised straight all ends
Raised Face Nominal Height: 0.062 inches all ends
Raised Face Nominal Diameter: 2.000 inches all ends
Special Features: valve conforms to mil-v-24332 grade a,(except disk,seat and stem);stainless steel trim;flange per ansi b16.5,150 lb,1 in.
Material: steel body
Material: steel corrosion resisting flow control device
Material: steel corrosion resisting seat
Material: steel corrosion resisting stem
Material Document And Classification: astm a216 gr wcb assn std single material response body
Material Document And Classification: astm a582 ty 303 assn std single material response flow control device
Material Document And Classification: astm a582 ty 303 assn std single material response stem
Material Document And Classification: astm a582 type 303 assn std single material response seat
Style Designator: angle flanged ends
Furnished Items And Quantity: 1 wrench

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
20327 PART 20327H51SS	Safety Relief Valve
20327H51SS	Safety Relief Valve
CNSNN05SEE	Safety Relief Valve
TYPE FF 2751 1.00 IN.	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-448-1419?

The FSCG of the NSN 4820-01-448-1419 is 4820

Does the NSN 4820-01-448-1419 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-448-1419 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)"

Does NSN 4820-01-448-1419 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-448-1419 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 4820-01-448-1419 was assigned to the Federal Catalog?

It was assigned 28 years ago, on Thu, Aug 21, 1997