Model: 21270-001

Manifold Valve Assembly

Special Features:

This quiet variable restrictor valve assembly has 2 valves: a restrictor valve and a check valve; operating pressure is 3000 psig; flow is 0.1 to 5 gpm at 75 psid min and 3300 psid max with fluid viscosity at atmospheric pressure between 73 and 77 centistokes; manually close assembly by turning adjust screw counterclockwise; has 4 helical coil inserts in body iaw ms124699 (.4375-20unf-3b) and 2 helical coil inserts in end cap iaw ms124696 (.250-28unf-3b); assembly may be mounted in any position w/o adversely affecting operation; media is hydraulic fluid; key component of this valve assembly is p/n 21270-801-1 quiet element which provides for extremely quiet operation

Properties:

Overall Length

8.870 inches

Overall Width

5.000 inches

End Application

Seawolf class ssn

Valve Operation Method

Hydraulic and manual

Valve Quantity

Body Material

Aluminum alloy 6061

Part Name Assigned By Controlling Agency

Restrictor valve assembly

NSN

4820-01-503-2497

Part Number

21270-001

Description

Valve Assembly,manifold

CAGE

78062

A device consisting of two or more valves of the same or different type in a common body or housing. It may have multiple end connections, and the valves function(s) may or may not be dependent of each other. For items consisting of two or more complete valves joined together, see valve assembly.

Part 21270-001 NSN 4820-01-503-2497

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

46202

FIIG:

A504L0

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

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