20X1253

20X1253 Ribbed Shoulder Bolt

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Datasheet. 20X1253 specification

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

Thread Length
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.

0.906in. ⁓29/32"

Fastener Length
The dimension,measured along a line parallel to the longitudinal axis,from the largest bearing surface of the fastener head to the extreme opposite end,or as specifically designated for other type fasteners.

3.375in. ⁓3-3/8"

Head Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.

flat chamfer

Head Diameter
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.

1.375in.

Head Height
A measurement from the bottom to the top of the head,in distinction from depth.

0.312in. and 0.402in. ⁓13/32"

Shoulder Diameter
The length of a straight line which passes through the center of the shoulder and terminates at the circumference.

0.798in. first shoulder and 0.808in. first shoulder

Shoulder Length
The length of the enlarged portion of the shank on the item,in distinction from width or diameter.

0.312in. first shoulder and 1.688in. first shoulder

Rib Major Diameter
The length of a straight line which passes through the center of the rib,and terminates at the outermost surface of the circumference.

0.810in. and 0.820in.

Rib Length
A measurement of the longest dimension of a rib along a line parallel to the longitudinal axis.

0.500in.

Distance From Largest Diameter Of Bearing Surface Of Head To Ribs
The measurement from the largest diameter of the bearing surface of the head to the ribs.

0.562in.

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

0.750in. ⁓3/4"

Nonstandard Thread Pitch Diameter
The minimum and maximum pitch diameter limits of a nonstandard straight screw thread.

+0.7044/+0.7084in.

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

16

Shoulder Shape
The physical configuration of the unthreaded portion of a body adjacent to the head which is larger than the diameter of the shank.

round first shoulder

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

steel

Material Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.

t and a div B14 grade 8 78500 mfr ref single material response

Thread Series Designator
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.

unf

Answers.

What quantity is this sold in?

1EA

What class is the thread series?

Unf

What material is the ribbed shoulder bolt made of ?

Steel

What is the thread quantity per inch?

16

What is the head style?

Flat chamfer

What is the thread length?

0.906 inches minimum

What is the thread direction?

Right-hand

What is the NSN for 20X1253?

5306-00-448-3997

How is this classified for shipping?

Schedule B number: 7318152000
nmfc 093486
Bolts and bolts and their nuts or washers exported in the same shipment

What's the federal classification of 20X1253?

FSC 5306 ⁓ Bolts

NSN 5306-00-448-3997 BOLT,RIBBED SHOULDER

unf thread series 16 thread quantity per inch flat chamfer head style 0.906" thread length right-hand

NIIN
004483997
NIIN Date
01/13/71
Schedule B
7318152000 
Name Code
16014
FIIG
A003B0
Item Weight
0.600lbs
Item Dimensions
--
QUP
Historical Price
$5.40 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

1. 5340004483997 Cage SCY13
2. 5306004483997 Cage A00AM

Major End Users Countries and entities

  • - Department of The Army 
  • - Morocco 

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Shipping Information

Special Handling
Other or no special handling required (sh) 
LTL (less than a truck load rating)
Rating variable 
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)
Bolts or nuts (iron or steel),(less than 35 feet) 
NMFC (national motor freight code)
093486 BOLTS,NUTS OR SCREWS, NOI (SUB 3) 
UFC (universal freight code)
48950 

Similar by Design Other bolts with similar characteristics

Nothing similar to this part number was found in our inventory

20X1253 / Bolt,ribbed shoulderWhat is the formal definition of this item?

An externally threaded fastener whose threaded portion is of one nominal diameter. it has a series of longitudinal ribs, splines or serrations on all or a part of the shoulder. the minor diameter of the ribs must be greater than the major diameter of the threads. see also bolt, ribbed neck.