Fluid Pressure Regulating Valve

HQ507

HQ507
(NSN) National Stock Number
4820-00-430-4158
Federal Supply Classification
4820 Nonpowered Valves
Item Name Code
27565
Schedule B Code
8481809015
Summary

Threaded external pipe first end connection type, plain first end style designator, 3/8-18 npt first end thread size and series/type designator, right-hand first end thread direction, not identical second end relationship with first end, threaded external pipe second end connection type

DAC HCC DMIL RNCC
X - - 5
RNVC SADC MSDS RNAAC
9 - - XX
Identification

A valve designed to automatically maintain within close limits a predetermined outlet pressure which may be adjustable within a specified range regardless of the higher fluctuating or constant inlet pressure. It is designed for use with compressed gas(es) and various liquids and may include gauges. It may be inline or cartridge (manifold) design. Excludes:regulator, pressure, medical gas administration apparatus; regulator, oxygen, barometric continuous flow; regulator, oxygen demand; regulator, oxygen diluter demand; and valve(1), fluid pressure regulating, aircraft.

INC FIIG Concept Condition
27565 A21100 1 2
Specifications
First End Connection Type
threaded external pipe
Details A narrative description of the type of end connection.
First End Style Designator
plain
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the end.
First End Thread Size And Series/Type Designator
3/8-18 npt
Details Designates the thread diameter,series/type,and number of threads per specific measurement scale.
First End Thread Direction
right-hand
Details The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.
Second End Relationship With First End
not identical
Details Indicates whether or not the second end is identical to the first end. please use mrc cqbb in place of this discontinued mrc.
Second End Connection Type
threaded external pipe
Details A narrative description of the type of end connection.
Second End Style Designator
plain
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the end.
Second End Thread Size And Series/Type Designator
1/4-18 npt
Details Designates the thread diameter,series/type,and number of threads per specific measurement scale.
Second End Thread Direction
right-hand
Details The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.
Third End Relationship With Preceding Ends
identical with second end
Details Indicates whether or not the third end is identical with first or second end.
Third End Connection Type
unthreaded external hose
Details A narrative description of the type of end connection.
Third End Style Designator
plain
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the end.
Fourth End Style Designator
plain
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the end.
Fourth End Thread Size And Series/Type Designator
1/2-18 npt
Details Designates the thread diameter,series/type,and number of threads per specific measurement scale.
Fourth End Thread Direction
right-hand
Details The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction. please use mrc aajf with isac table 0036 in place of this discontinued mrc.
Flow Control Device
ball
Details The part that controls the flow through the item.
End Connection Quantity
4
Details The number of end connections included in the item.
Maximum Inlet Pressure Rating
200.0 pounds per square inch
Details The maximum pressure of the media on the inlet side at which an item is designed to operate.
Special Features
regulated pressure range 0-125 psi
Details Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification on one or more other functions.
Material
iron or copper alloy body
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Master-Cross Reference List
Part CAGE DAC HCC RNCC RNVC MSDS RNAAC
HAR-555 17431 6 - 3 2 - ZZ
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
HMIC PMIC ESD/EMI Criticality
N A - -
Freight
Universal / National Freight and Handling Information
UFC HMC LTL LCL
64490 - P P
RVC WCC TCC SHC
1 594 Z 9

Certified Supplier

Order with confidence. We are a valued certified supplier serving customers in the military and aerospace industries.

  • Genuine Manufacturers Parts
  • 100% Product Inspection
  • 7 Year Sales Record Retention
  • Fast On-Time Delivery
  • HAZMAT Certified
  • Global Shipping
Manufacturer
ILLINOIS TOOL WORKS INC.
CAGE: 17431
SWANTON , OH , 43558-7900
UNITED STATES
View Products
FAQs
Frequently asked questions for NSN 4820-00-430-4158
What is the NIIN of the NSN 4820-00-430-4158?
The National Item Identification Number (NIIN) of the NSN 4820-00-430-4158 is 00-430-4158
When the NSN 4820-00-430-4158 was assigned to the Federal Catalog?
It was assigned 62 years ago, on Tue, Jan 1, 1963
Does the NSN 4820-00-430-4158 contain any precious metals?
Does not contain precious metal
Does the NSN 4820-00-430-4158 contain any hazardous material?
No data in HMIRS

Can't Find It

If you didn't find what you need, don't worry, we're here to help! Our team is ready to help you find exactly what you need. Click below to contact us.

Similar Products
Who we are?

We are a trusted provider of milspec and aerospace hardware, offering high-quality consumables and parts. With a commitment to excellence, we guarantee reliable and fast delivery through our network of logistics centers. Our mission is to support the aerospace industry with precision and efficiency.

Contact
3555 Agricultural Center Dr.
St. Augustine, FL, 32092
United States
© 2025 Aerospace Hardware Store, Inc. All rights reserved.
Made in USA