Model: 81670

Valve Seat

Special Features:

6 bleed holes

Properties:

Flange Diameter

Between 1.035 inches and 1.045 inches

Body Outside Diameter

Between 0.797 inches and 0.798 inches

Body Inside Diameter

0.344 inches

Flange Seat To Disk End Height

Between 0.089 inches and 0.091 inches

Under Flange Height

Between 0.779 inches and 0.786 inches

Hardness Rating

55.0 rockwell c and 60.0 rockwell c

Seating Surface Shape

Flat

Material

Steel

Surface Treatment

Passivate

Style Designator

Plain flanged

Fsc Application Data

Manifold, hydraulic system accessories, acft

NSN

4820-00-050-7667

Part Number

81670

Description

Seat,valve

CAGE

81982

A replaceable item designed to provide a stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see insert, engine valve seat.

Part 81670 NSN 4820-00-050-7667

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

22113

FIIG:

A15500

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: 8481909090
SITC: 74790
End Use: Industrial machines, other
NAICS: 332911
USDA: 1

Freight Class: Parts of taps, cocks, valves and similar appliances, nesoi