Model: 991708

Check Valve

Properties:

Thread Class

2b 1st end

Thread Direction

Right-hand 2nd end

Thread Direction

Right-hand 1st end

Flow Control Device

Ball

Disk Loading Method

Spring

Connection Style

Inverted flare (tube) 1st end

Connection Style

Plain (pipe) 2nd end

Valve Operation Method

Automatic

Connection Type

Threaded external pipe 2nd end

Connection Type

Threaded internal tube 1st end

Mounting Position

Horizontal or vertical

Thread Size

0.375 inches 2nd end

Thread Size

0.500 inches 1st end

Seat Angle

42.0 degrees 1st end

Outside Diameter Tube Accommodated

0.312 inches 1st end

Material

Steel

Style Designator

Straight thru

Thread Series Designator

Npt 2nd end

Thread Series Designator

Unf 1st end

NSN

4820-01-021-6196

Part Number

991708

Description

Valve,check

CAGE

89749

A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

Part 991708 NSN 4820-01-021-6196

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

05487

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:

0.1000lbs

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:

576

TCC:

SHC:

ACC:

Construction Materials

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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