Safety Relief Valve

NSN: 4820-01-088-7460 | Model: 20039H91SS

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

4820-01-088-7460

DEMIL

Flow Control Device

Disk

Disk Loading Method

Spring

Bolt Hole Quantity

4 all ends

Valve Operation Method

Automatic

Flange Shape

Round with holes all ends

Connection Type

Flange all ends

Features Provided

Pressure tight outlet side

Valve Size

0.500 inches

Maximum Operating Pressure

275.0 pounds per square inch single response

Opening Pressure Setting

111.0 pounds per square inch

Outside Diameter

3.500 inches all ends

Thickness

0.438 inches all ends

First Connection Face To Centerline Distance

3.250 inches

Bolt Hole Diameter

0.500 inches all ends

Second Connection Face To Centerline Distance

3.250 inches

Bolt Circle Diameter

2.375 inches all ends

Flange Face Design

Raised with curve and radius all ends

Raised Face Height

0.062 inches all ends

Raised Face Diameter

1.375 inches all ends

Material

Steel flow control device

Material Specification

Qq-s-763, class 303 federal specification single material response seat

Media For Which Designed

Steam single response

Style Designator

Err-090

Test Data Document

81349-mil-s-901 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).

Recent Solicitations

Solicitation	Return by Date	Buyer Code	Quantity
SPE7M020T1186	2019-11-07	PMCM5	2 EA
SPE7M019T7785	2019-04-25	PMCMS	1 EA

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 4820-01-088-7460 Datasheet

Supply Class (FSC):

Nonpowered Valves

Cross Reference:

20039H91SS
20039
20039H91SS
20039H91SS
20039H91SS
20039
20039H91SS
20039H91SS
20039
20039H91SS
20039H91SS
20039

Cage Codes:

Pentair Valves & Controls Us Lp (CAGE 15187)
anderson Greenwood Lp (CAGE 01343)

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
3b-----
Repariability

Questions & Answers:
What are the historical prices recorded for this stock number?
Historical data shows pricing from $4,034.69 to $6,724.49..
Does NSN 4820-01-088-7460 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 Navy, and Turkey
What is the NIIN of NSN 4820-01-088-7460?
010887460 or 01-088-7460
Does NSN 4820-01-088-7460 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 4820-01-088-7460?
Solicitation SPE7M020T1186 for qty 2 on 10/28/2019
When was this national stock number assigned to the federal catalog?
Jan 18, 1980