Model: 485-8B28-2

Check Valve

Special Features:

Weapon system essential

Properties:

Thread Class

3a 2nd end

Thread Direction

Right-hand 2nd end

Thread Direction

Right-hand 1st end

Flow Control Device

Poppet

Disk Loading Method

Spring

End Application

Advance attack helicopter ah-1w. Mh-53e helicopter. S-3b viking aircraft. B-52 aircraft support equipment. C-2a (reprocured) aircraft. Hh-60h search and rescue helicopter. Hh-60j uscg search and rescue helicopter. F-14 tomcat aircraft.

Connection Style

External seat for gasket seal (boss) 2nd end

Valve Operation Method

Automatic

Thready Qty Per Inch (tpi)

A16 2nd end

Maximum Operating Pressure

3000.0 pounds per square inch single response

Thread Size

0.375 inches 1st end

Thread Size

0.750 inches 2nd end

Seat Angle

37.0 degrees 2nd end

Criticality Code Justification

Feat

Material

Rubber seat

Material

Steel flow control device

Style Designator

Straight thru

Thread Series Designator

Npt 1st end

Thread Series Designator

Unj 2nd end

NSN

4820-01-183-2258

Part Number

485-8B28-2

Description

Valve,check

CAGE

09990

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 485-8B28-2 NSN 4820-01-183-2258

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:

0.7000lbs

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

Pricing & Availability Check

Submit this form for stock availability and pricing.

How to Order

Ordering from buyaircraftparts.com

If you would like to order this check valve (NSN 4820-01-183-2258) please submit the pricing and availability form above to receive an up to date quote by email. If you agree to the pricing and terms you can e-sign your order online!

We are pleased to have the opportunity to serve you.

Have a Question

Hours:	08:00-18:00 Eastern Standard Time
Phone:	+1 470-231-0824
Email:	Contact Form »

Schedule B and Export

Schedule B: 8481301090
SITC: 74730
End Use: Industrial machines, other
NAICS: 332911
USDA: 1

Freight Class: Check valves of copper having a pressure rating of 850 kpa or over