Stop-check Valve

NSN: 4820-01-497-6998 | Model: 4384536-54AXAF

A valve with a bolt or stem that may be mechanically actuated to two different positions by rotary or linear motion. In the first position, the valve disk is located and locked against the seat permitting no fluid flow through the valve. In the second position, one side of the valve disk is located against the seat permitting movement of the disk in a manner that will allow a flow of fluid in one direction through the valve. The valve disk may be spring loaded. It may be inline or cartridge (manifold) design. See also valve (1), lift-check and valve (1), stop-lift-check.

NSN Properties and Flags

NATO Stock Number

4820-01-497-6998

DEMIL

Pipe Size Accommodated

1.000 inches all ends

Flow Control Device

Disk

Bonnet Type

Inside screw

Bonnet Attachment Method

Union

Maximum Operating Temp

150.0 degrees fahrenheit 3rd response

Connection Style

Socket with brazing ring (pipe) all ends

Valve Operation Method

Automatic or manual

Connection Type

Unthreaded internal pipe all ends

Mounting Position

Horizontal or vertical

Features Provided

Bonnet packing and valve stem lock shield

Maximum Operating Pressure

400.0 pounds per square inch single response

Special Features

This valve is asbestos free, supplied without union nuts, tailpieces iaw 803-7063850 unless specified. Meets type i vibration requirements of mil-std-167 by navsea ltr. Ser. 08m/90-08796 dated 10/3/90; meets shock requirements of mil-s-901d, interim change 1 for lightweight equipment, grade 1, class i, type a, hull/frame mounted by navsea let. Ser. 08m/97-08748 dated 8/28/97

Material

Plastic polytetrafluoroethylene packing

Material Specification

Mil-p-24503, type ii, class 2, grade n military specification single material response packing

Media For Which Designed

Air 1st response

Style Designator

Angle

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 4820-01-497-6998 Datasheet

Supply Class (FSC):

Nonpowered Valves

Cross Reference:

4384536-54AXAF
4384536
4384536-54A2
4384536-54A2AF
803-4384536-54A2AF

Cage Codes:

Naval Ship Systems Command (CAGE 80064)
Naval Sea Systems Command (CAGE 53711)

Schedule B & Trade:

Schedule B: 8481301090 (NAICS 332911)

Check valves of copper having a pressure rating of 850 kpa or over
SITC: 74730

Check 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.

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.

Freight Information:

NMFC:

051080 - Faucets, bibcocks, gates valves
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.
ACC:

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

W - Rating variable
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
When repair is beyond lower level maintenance capability, evacuate the item to depot. disposal is not authorized below wholesale level.

Questions & Answers:
What are the historical prices recorded for this stock number?
Historical data shows pricing from $1,219.54 to $2,032.56..
Does NSN 4820-01-497-6998 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
What is the NIIN of NSN 4820-01-497-6998?
014976998 or 01-497-6998
Does NSN 4820-01-497-6998 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 4820-01-497-6998?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
May 31, 2002