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Worldwide distributor of NSN parts and consumables located in the USA.

Machine Thread Plug

Model / MPN: MS51840-23 | NSN: 5365-00-549-6688
ITAR Registered seal

An item with a cylindrical shaped body having external threads other than pipe or hose series. It is desinged to mate into a preformed threaded component for the purpose of plugging a hole during equipment operation. It may have a head and/or internal drive and may contain a bleeder hole. See also plug, protective, dust and moisture seal and cap-plug, protective, dust and moisture seal. Excludes plug, tube fitting, threaded.

Product Details
NATO Stock Number
5365-00-549-6688
Sold in multiples of
1 EA
DEMIL
NO
Thread Class
2a external
Thread Direction
Right-hand external
Thread Length
0.250 inches external
Head Height
Between 0.295 inches and 0.325 inches
Overall Length
Between 0.650 inches and 0.690 inches
Connection Style
Plain
Body Core Diameter
0.187 inches
Core Depth
0.437 inches
Head Type
Solid
Body Type
Cored
Thread Size
0.438 inches external
Material
Steel comp b1113 or steel comp 1113 or steel comp 1117 or steel comp 1118 or steel comp 1137 or steel comp 12l14
Material Specification
66 federal standard all material responses
Surface Treatment
Cadmium body and chromate body
Surface Treatment
Cadmium and chromate body
Surface Treatment Specification
Qq-p-416, type 2, cl 3 federal specification single treatment response
Style Designator
Plug, machine
Thread Series Designator
Unf external
Solicitations
Solicitation Description Qty UOM Close Date
SPE4A616T6815 Plug, Machine Thread 2098 EA 11/16/2015
SPE4A617TJ647 Plug, Machine Thread 3809 EA 03/02/2017
SPE4A618Q0180 Plug, Machine Thread 2 EA 11/14/2017
SPE4A618T164L Plug, Machine Thread 3627 EA 01/16/2018

Pricing and Availability

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MS51840-23 Cross Reference
  • MIL-F-18866
  • 0740820