Safety Relief Valve

NSN: 4820-00-051-1082 | Model: 9871

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

4820-00-051-1082

DEMIL

Thread Direction

Right-hand 1st end

Flow Control Device

Disk

Connection Style

Plain (pipe) 1st end

Valve Operation Method

Automatic

Connection Type

Threaded external pipe 1st end

Features Provided

Pressure tight outlet side

Thready Qty Per Inch (tpi)

18 1st end

Thread Size

0.250 inches 1st end

Opening Pressure Setting

350.0 pounds per square inch

Material

Plastic polyamide seat

Style Designator

Straight thru

Thread Series Designator

Npt 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 4820-00-051-1082 Datasheet

Supply Class (FSC):

Nonpowered Valves

Cross Reference:

9871
8032AL

Cage Codes:

Engelhard Corp (CAGE 11212)
Henry Technologies Inc. (CAGE 28193)

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 4820-00-051-1082 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 4820-00-051-1082?
000511082 or 00-051-1082
Does NSN 4820-00-051-1082 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 4820-00-051-1082?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jan 01, 1961