Safety Relief Valve

NSN: 4820-00-760-7677 | Model: 642B9-1/8-2

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes valve (1), relief, pressure and temperature.

NSN Properties and Flags

NATO Stock Number

4820-00-760-7677

DEMIL

Thread Direction

Right-hand all ends

Flow Control Device

Poppet

Bonnet Type

Inside screw

Bonnet Attachment Method

Integral

Disk Loading Method

Spring

Maximum Operating Temp

225.0 degrees fahrenheit single response

Connection Style

Plain, optional en (pipe) all ends

Valve Operation Method

Automatic

Connection Type

Threaded internal pipe all ends

Features Provided

Pressure tight outlet side

Adjustable Pressure Range

+800.0/+1500.0 pounds per square inch

Maximum Operating Pressure

1500.0 pounds per square inch single response

Thread Size

0.125 inches all ends

Opening Pressure Setting

1000.0 pounds per square inch

Material

Steel comp 303

Material Specification

66 federal standard single material response

Media For Which Designed

Fuel/oil, hydrocarbon 1st response

Surface Treatment

Passivate

Style Designator

Angle

Thread Series Designator

Anpt all ends

Pricing and Availability

Send us a request for quote using the form below. Our team will contact you with an up to date pricing and availability quote ASAP.

Certified Quality Assurance

ISO 9001:2015 + AS9120B
Counterfeit Parts Prevention
100% Product Inspections
7 Year Record Retention
On Time Delivery
HAZMAT Certified
Worldwide Shipping

NSN 4820-00-760-7677 Datasheet

Supply Class (FSC):

Nonpowered Valves

Cross Reference:

642B9-1/8-2
642B9-1-8SS2

Cage Codes:

Teledyne Industries Inc (CAGE 86768)

Schedule B & Trade:

Schedule B: 8481400000 (NAICS 332911)

Safety or relief valves
SITC: 74740

Safety or relief valves
End Use: 21180

Industrial machines, other

Identification:

HMIC

N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

PMIC

U - Precious metal content is unknown

CRITL

- The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Freight Information:

NMFC:

127220 - Pressure reg/red/relief valves noi
WCC:

576 - Metal and metal products, nos, (less than 35 feet)
SHC:

9 - Other or no special handling required (sh)
ADC:

A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
ACC:

B - Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater
LTL:

P - 77.5
TCC:

Z - No special type of cargo code applicable

NSN Management Codes:

SOS
Sms
AAC
J
Quantity per pack
1
Unit of Measure
Ea
Shelf Life
N/A
Classification Control
U
MGMT_CTL
Sf9sx-n
Repariability

Questions & Answers:
What are the historical prices recorded for this stock number?
Historical data shows pricing from $1,108.24 to $1,847.07..
Does NSN 4820-00-760-7677 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Department Of The Air Force
What is the NIIN of NSN 4820-00-760-7677?
007607677 or 00-760-7677
Does NSN 4820-00-760-7677 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 4820-00-760-7677?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Oct 31, 1969