308355

308355 Hexag Single Ball Seat Plain Nut
Home » Catalog » Nuts & Washers (p. 3049) » Hexag Single Ball Seat Plain Nuts (p. 3) » Part Number 308355

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Datasheet. 308355 specification

Thread Class
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.

2b

Thread Direction
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.

RIGHT-Hand

Nut Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the nut.

single ball seat, hexagon

Nut Height

0.312in. ⁓5/16"

Width Across Flats
The shortest straight line between flats,perpendicular to the height.

0.438in. ⁓29/64"

Thread Series
A designation indicating the diameter-pitch combination and the number of threads per measurement scale applied to a series of diameters.

unf

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

28

Nominal Thread Size
A designation that is used for the purpose of general identification of the thread.

0.250in. ⁓1/4"

Material
The chemical compound or mechanical mixture properties of which the item is fabricated.

plastic locking insert

Material
The chemical compound or mechanical mixture properties of which the item is fabricated.

steel nut

Answers.

What quantity is this sold in?

1EA

What material is the hexag single ball seat plain nut made of ?

Steel nut

What material is the hexag single ball seat plain nut made of ?

Plastic locking insert

What is the thread quantity per inch?

28

What is the thread direction?

Right-hand

What is the thread class?

2b

What is the NSN for 308355?

5310-00-176-0739

How is this classified for shipping?

Schedule B number: 7318160000
nmfc 194160
Nuts of iron or steel

What's the federal classification of 308355?

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 5310-00-176-0739 NUT,PLAIN,SINGLE BALL SEAT,HEXAG

28 thread quantity per inch right-hand 2b thread class

NIIN
001760739
NIIN Date
12/15/69
Schedule B
7318160000 
Name Code
04892
FIIG
A021A0
Item Weight
0.000lbs
Item Dimensions
--
QUP
1 
Historical Price
$0.35 EA
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
Metal content unknown
Enviromental
N/A
Electrostatic ESD & EMI
No ESD or EMI sensitivity

Other Part Numbers Parts with same form, fit, and function by other manufacturers

Major End Users Countries and entities

  • - Department of The Navy 
  • - Spain 
  • - Singapore 
  • - New Zealand 
  • - France 
  • - United Kingdom 
  • - Turkey 

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Shipping Information

Special Handling
Other or no special handling required (sh) 
LTL (less than a truck load rating)
50.0 
LCL (less than a car load rating)
Unknown
Special Cargo
No special type of cargo code applicable 
Air Freight (Minimum cargo door size required)
Shipment is not a consolidation and does not exceed 84 inches in any dimension. 
Customs Requirement Classification
Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater 
Commodity (for shipments via water)
Metal hardware 
NMFC (national motor freight code)
194160 WASHER OR GASKETS, IRON OR STEEL, 
UFC (universal freight code)
55210 

Similar by Design Other nuts with similar characteristics

Nothing similar to this part number was found in our inventory

308355 / Nut,plain,single ball seat,hexagWhat is the formal definition of this item?

A nut having 1 convex, spherical bearing surface and 6 flat sides. items may have a removable collar. see also nut (1), plain, cone seat, hexagon.