Safety Relief Valve

NSN: 4820-00-104-8746 | Model: D516A6D7

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

4820-00-104-8746

DEMIL

Thread Class

3a 1st end

Thread Direction

Right-hand 1st end

Flow Control Device

Poppet

Disk Loading Method

Spring

Valve Discharge Flow Rate

1.0 cubic feet per minute

Maximum Operating Temp

300.0 degrees fahrenheit 1st response

Connection Style

External seat for gasket seal (boss) 1st end

Valve Operation Method

Automatic

Connection Type

Threaded external boss 1st end

Maximum Operating Pressure

200.0 pounds per square inch 3rd response

Thread Size

0.437 inches 1st end

Opening Pressure Setting

7.0 pounds per square inch

Outside Diameter Tube Accommodated

0.250 inches 1st end

Material

Aluminum alloy 2024 and rubber butadiene-acrylonitrile class nbr flow control device

Material Specification

Qq-a-225/6 federal specification single material response and mil-r-7362, type 2 federal specification 1st material response flow control device

Media For Which Designed

Air 1st response

Surface Treatment

Anodize

Surface Treatment Specification

Mil-a-8625, type 2 military specification single treatment response

Style Designator

Straight through w/baffle

Thread Series Designator

Unf 1st end

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 4820-00-104-8746 Datasheet

Supply Class (FSC):

Nonpowered Valves

Cross Reference:

D516A6D7
C225-4

Cage Codes:

Circor Aerospace, Inc. (CAGE 91816)
Lockheed Martin Corporation (CAGE 81755)

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:

594 - Pumps and parts, (machinery and parts),(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.
LCL:

P - 77.5
LTL:

P - 77.5
ACC:

V - Trailers, vehicles, machinery, shop and warehouse equipment and supplies including special tools and equipment, ground servicing
TCC:

Z - No special type of cargo code applicable

Questions & Answers:
What are the historical prices recorded for this stock number?
No pre-dated pricing for this NSN could be found.
Does NSN 4820-00-104-8746 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
No recorded entities for this stock number.
What is the NIIN of NSN 4820-00-104-8746?
001048746 or 00-104-8746
Does NSN 4820-00-104-8746 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 4820-00-104-8746?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jul 01, 1968