Model: 1 INCH 21F-C8M4-SC (55)

Stop-check Valve

Properties:

Bonnet Type

Outside screw-yoke

Bonnet Attachment Method

Bolted

Bolt Hole Quantity

4 all ends

Valve Operation Method

Manual

Flange Shape

Round with holes all ends

Connection Type

Flange all ends

Mounting Position

Horizontal

Valve Size

1.000 inches

Outside Diameter

4.250 inches all ends

Face To Face Distance

5.000 inches

Thickness

0.438 inches all ends

Bolt Hole Diameter

0.625 inches all ends

Bolt Circle Diameter

3.125 inches all ends

Flange Face Design

Raised straight all ends

Raised Face Height

0.062 inches all ends

Raised Face Diameter

2.000 inches all ends

Part Name Assigned By Controlling Agency

Valve, globe, stop check

Material

Steel comp 316

Style Designator

Straight through flanged ends

NSN

4820-01-494-7418

Part Number

1 INCH 21F-C8M4-SC (55)

Description

Valve,stop-check

CAGE

61661

A valve with a bolt or stem that may be mechanically actuated to two different positions by rotary or linear motion. In the first position, the valve disk is located and locked against the seat permitting no fluid flow through the valve. In the second position, one side of the valve disk is located against the seat permitting movement of the disk in a manner that will allow a flow of fluid in one direction through the valve. The valve disk may be spring loaded. It may be inline or cartridge (manifold) design. See also valve (1), lift-check and valve (1), stop-lift-check.

Part 1 INCH 21F-C8M4-SC (55) NSN 4820-01-494-7418

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

05486

FIIG:

A530B0

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

051080

UFC:

29300

LTL:

RATING VARIABLE

LCL:

WCC:

594

TCC:

SHC:

ACC:

Trailers/Vehicles

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Schedule B and Export

Schedule B: 8481302090
SITC: 74730
End Use: Industrial machines, other
NAICS: 332911
USDA: 1

Freight Class: Check valves of steel