Model: 56-4900-1

Pressure And Temper Relief Valve

Special Features:

Electrical bonding per mil-b-5087b, temperature range fuel -65 degree f to 300 degree f, temperature range ambient -65 degree f to 300 degree f, pressure rating for operting 0 - 275 psid, proof 550 psid, burst 825 psid, crack 400 psid min at 20 cc/min, reseat 380 psid at 1cc/min max, leakage: external zero, internal 1cc/min max from zero to 380 psid, fluid jp4 or jp5 per mil-t-5624, flow 15 gpm at 460 psid, machined surfaces concentricities .005 tir, threads per mil-s-7742, interna radii .005 - .015, symmetries .010, camphers 45 degrees, valve length 3.30 inches, valve diameter 1.50 inches

Properties:

End Connection Quantity

Tempurature Adjustability

Not adjustable

End Application

Preprovisioning support navicp is poe

Part Name Assigned By Controlling Agency

Valve, refief-hot fuel recirc

NSN

4820-01-454-5006

Part Number

56-4900-1

Description

Valve,relief,pressure And Temper

CAGE

76301

A valve designed to release under excessive pressure and/or excessive temperature by opening at a predetermined pressure and/or temperature. Thermostatically operated valves close when the pressure is relieved or the temperature is reduced. Fusible plug valves require replacement of the plug. See also valve, safety relief and valve, regulating. Temperature.

Part 56-4900-1 NSN 4820-01-454-5006

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

16996

FIIG:

A07100

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:

127220

UFC:

64490

LTL:

77.5

LCL:

77.5

WCC:

594

TCC:

SHC:

ACC:

Equipment for Aircraft

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Schedule B and Export

Schedule B: 8481400000
SITC: 74740
End Use: Industrial machines, other
NAICS: 332911
USDA: 1

Freight Class: Safety or relief valves