Model: BB55S48-852PC4

Valve Seat

Special Features:

Hex shaped flange

Properties:

Thread Class

2a single threaded portion

Thread Length

0.312 inches single threaded portion

Flange Diameter

0.750 inches

Body Inside Diameter

Between 0.281 inches and 0.375 inches

Flange Seat To Disk End Height

Between 0.185 inches and 0.191 inches

Under Flange Height

0.312 inches

Thready Qty Per Inch (tpi)

20 single threaded portion

Hardness Rating

300.0 brinell standard

Thread Size

0.562 inches single threaded portion

Seating Surface Shape

Angular

Material

Steel

Style Designator

Threaded flanged

Thread Series Designator

Un single threaded portion

NSN

4810-00-338-3063

Part Number

BB55S48-852PC4

Description

Seat,valve

CAGE

53711

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 BB55S48-852PC4 NSN 4810-00-338-3063

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:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

052190

UFC:

30000

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