Safety Relief Valve

NSN: 4820-00-016-1070 | Model: 668051

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

4820-00-016-1070

DEMIL

Yes - ITAR Controlled (Code B)

Thread Class

3b 1st end

Thread Direction

Right-hand 1st end

Flow Control Device

Poppet

Disk Loading Method

Spring

Valve Discharge Flow Rate

6.0 gallons per minute

Maximum Operating Temp

160.0 degrees fahrenheit single response

Connection Style

Gasket sea (boss) 1st end

Valve Operation Method

Hydraulic

Connection Type

Threaded internal boss 1st end

Features Provided

Pressure tight outlet side

Thready Qty Per Inch (tpi)

16 1st end

Maximum Operating Pressure

3000.0 pounds per square inch single response

Thread Size

0.750 inches 1st end

Material

Steel comp 440c seat

Media For Which Designed

Fuel/oil, hydrocarbon single response

Surface Treatment

Anodize

Surface Treatment Specification

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

Style Designator

Straight thru

Thread Series Designator

Unjf 1st end

Parts List for Safety Relief Valve

Other components in the assembly of NSN 4820-00-016-1070

Valve Seat
NSN 4820-00-876-7865

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.

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ISO 9001:2015 + AS9120B
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HAZMAT Certified
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NSN 4820-00-016-1070 Datasheet

Supply Class (FSC):

Nonpowered Valves

Cross Reference:

668051
1008520-6
3058430-1
1008520-6
3058430-1

Cage Codes:

Lockheed Martin Corporation (CAGE 98897)
Signal Inc Allied (CAGE 77068)
Honeywell International Inc. (CAGE 59364)

Replacements:

4820-00-016-1070 replaces 4820-00-612-3766

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)
ACC:

A - Supplies and equipment for aircraft and aerial targets, including aircraft and maintenance parts, aircraft accessories, aircraft
ADC:

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

P - 77.5
LTL:

P - 77.5
SHC:

Z - Other or no special handling required (sh)
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 4820-00-016-1070 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Greece, and Turkey
What is the NIIN of NSN 4820-00-016-1070?
000161070 or 00-016-1070
Does NSN 4820-00-016-1070 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 4820-00-016-1070?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jan 01, 1961