Model: AC4257-A

Drain Cock

Special Features:

Supports grumman a-10 aircraft

Properties:

Pipe Size Accommodated

0.375 inches 1st end

Thread Direction

Right-hand 1st end

Flow Control Device

Disk or stem

End Application

Grumman aerospace a-10 aircraft

Connection Style

Beaded (hose) 2nd end

Connection Style

Plain (pipe) 1st end

Valve Operation Method

Manual

Connection Type

Threaded external pipe 1st end

Connection Type

Unthreaded external hose 2nd end

Thread Size

0.375 inches 1st end

Material

Copper alloy

Style Designator

Angle

Thread Series Designator

Nptf 1st end

Nondefinitive Specification/std Data

1 type and a style

NSN

4820-00-026-8473

Part Number

AC4257-A

Description

Cock,drain

CAGE

81733

An item with one mounting end and one free flowing end with a metal to metal valve closure. It is designed to drain fluids from radiators, boilers, and similar items.

Part AC4257-A NSN 4820-00-026-8473

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

16988

FIIG:

A530C0

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:

4.0 X 4.0 X 4.0

Paclk Weight:

0.3000lbs

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:

050855

UFC:

29290

LTL:

RATING VARIABLE

LCL:

WCC:

576

TCC:

SHC:

ACC:

Construction Materials

End Items End applications NSN 4820-00-026-8473 is a component of

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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