2151693-1

21516931 Plain Hexagon Nut

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Datasheet. 2151693-1 specification

End Item Identification
The national stock number or the identification information of the end equipment for which the item is a part.

alco 251 marine diesel engine

Thread Quantity Per Inch
The number of threads on the item per linear inch measured on a line parallel to the thread axis.

20

Hole Nominal Thread Diameter
The nominal length of a straight line which passes through the center of the threaded hole,and terminates at the circumference.

0.250in.

Part Name Assigned By Controlling Agency
The name assigned to the item by the government agency or commercial organization controlling the design of the item.

hex nut, 1/4-20

Special Features
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.

used on lubricating oil filter

Answers.

What is the thread quantity per inch?

20

What is the NSN for 2151693-1?

5310-01-470-1888

What's the federal classification of 2151693-1?

FSC 5310 ⁓ Nuts and washers

Note-nuts and washers, including specially designed, are to be classified in this fsc. a. nuts are a small metal block made in a variety of shapes such as square and hexagonal which is drilled and internally threaded. b. washers are a perforated piece of metal, leather, or other materials of various shapes or forms. they are used primarily as a seat for a bolt, nut, screw, rivet or nail to distribute pressure and prevent endwise motion over an area and/or to prevent movement between two parts by means of restraining features created by the shape of its edges.

Excluding bearing thrust washers (fsc 3120); shims (fsc 5365); ring spacers (fsc 5365); plate spacers (fsc 5365); lock rings (fsc 5365).

NSN 5310-01-470-1888 NUT,PLAIN,HEXAGON

Used on alco 251 marine diesel engine. used on lubricating oil filter hex nut, 1/4-20 20 thread quantity per inch

NIIN
014701888
NIIN Date
12/09/99
Schedule B
 
Name Code
01857
FIIG
A021A0
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
No precious metals
Enviromental
N/A
Electrostatic ESD & EMI
No ESD or EMI sensitivity

Major End Users Countries and entities

  • - Malaysia 
  • - Australia 

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Similar by Design Other nuts with similar characteristics

Nothing similar to this part number was found in our inventory

2151693-1 / Nut,plain,hexagonWhat is the formal definition of this item?

A nut, flat on top and bottom having 6 flat sides. for items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. see also locknut, tube fitting. for items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)