Safety Relief Valve

NSN: 4820-01-617-8379 | Model: 257956

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

4820-01-617-8379

DEMIL

End Application

2030-01-614-2258; marine davit; p/n sn 2206, 2215

Part Name Assigned By Controlling Agency

Valve, proportional relief

Parts List for Marine Davit

Other components in the assembly of NSN 2030-01-614-2258

Check Valve
NSN 4820-01-617-8248
Ball Valve
NSN 4820-01-617-8369
Safety Relief Valve
NSN 4820-01-617-8379
Immer Electrical Heating Element
NSN 4520-01-627-3100

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 4820-01-617-8379 Datasheet

Supply Class (FSC):

Nonpowered Valves

Cross Reference:

257956

Cage Codes:

Allied Systems Company (CAGE 60848)

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

A - Item does not contain precious metal.

ESD

A - No known electrostatic discharge (esd) or electromagnetic interference (emi) sensitivity.

ADPE

- Represents items with no adp components

CRITL

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

NSN Management Codes:

SOS
Znc
AAC
C
Quantity per pack
1
Unit of Measure
Ea
Shelf Life
N/A
Classification Control
U
MGMT_CTL
A-09---
Repariability
If condemned or economically unserviceable, dispose by theoperator/crew

Questions & Answers:
What are the historical prices recorded for this stock number?
Historical data shows pricing from $362.84 to $604.73..
Does NSN 4820-01-617-8379 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
U.s. Coast Guard
What is the NIIN of NSN 4820-01-617-8379?
016178379 or 01-617-8379
Does NSN 4820-01-617-8379 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 4820-01-617-8379?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Apr 04, 2013