Vent Plug

30137P80
(NSN) National Stock Number
5340-00-234-3099
Federal Supply Classification
5340 Commercial Hardware
Item Name Code
28458
Schedule B Code
8421990080
Summary

2a thread class, 0.156 inches nominal inside diameter, 0.313 inches nominal thread length, 0.250 inches nominal outside diameter, 0.344 inches nominal length, threaded end connection type

DAC HCC DMIL RNCC
5 - - 3
RNVC SADC MSDS RNAAC
2 - - HD
Identification

A ported item with or without external threads. The port(s) may contain a filtering disk or wire fabric. It is designed to be inserted into an opening in a cylinder, pump, regulator, valve, housing, casing, or the like, to permit the free flow of fluid from or to the atmosphere. Excludes:breather.

INC FIIG Concept Condition
28458 A539T0 - 1
Specifications
Thread Class
2a
Details A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
Inside Diameter
0.156 inches nominal
Details The length of a straight line which passes through the center of a circular figure or body,and terminates at the inside circumference.
Thread Length
0.313 inches nominal
Details A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
Outside Diameter
0.250 inches nominal
Details The length of a straight line which passes through the center of a circular figure or body,and terminates at the outside circumference.
Length
0.344 inches nominal
Details A measurement of the longest dimension of any object,in distinction from width.
End Connection Type
threaded
Details Indicates the type of end connection.
Material
copper alloy
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Thread Size And Series/Type Designator
1/4-28 unf
Details Designates the thread diameter,series/type,and number of threads per specific measurement scale.
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
HMIC PMIC ESD/EMI Criticality
P U - -
Freight
Universal / National Freight and Handling Information
UFC HMC LTL LCL
49790 - W -
RVC WCC TCC SHC
- 713 Z 9
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FAQs
Frequently asked questions for NSN 5340-00-234-3099
What is the NIIN of the NSN 5340-00-234-3099?
The National Item Identification Number (NIIN) of the NSN 5340-00-234-3099 is 00-234-3099
When the NSN 5340-00-234-3099 was assigned to the Federal Catalog?
It was assigned 54 years ago, on Mon, Oct 26, 1970
Does the NSN 5340-00-234-3099 contain any precious metals?
Type/content is unknown
Does the NSN 5340-00-234-3099 contain any hazardous material?
No information in HMIRS

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