MS51948-4

MS519484 Ribbed Shoulder Bolt
Home » Catalog » Fasteners (p. 4966) » Ribbed Shoulder Bolts (p. 3) » Part Number MS51948-4

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Datasheet. MS51948-4 specification

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

3a

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.

0.930in. ⁓15/16"

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.

1.740in. and 1.750in. ⁓1-3/4"

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.

0.800in.

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

0.250in. ⁓1/4"

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

0.535in. first shoulder and 0.540in. first shoulder

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

0.690in. first shoulder and 0.700in. 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.

0.550in. and 0.560in.

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

0.120in.

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.

0.090in.

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

0.535in. and 0.540in.

Rib Quantity
The number of ribs included on the item.

35

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

0.500in. ⁓1/2"

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

20

Hardness Rating
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.

78.0 rockwell superficial 15-n and 84.0 rockwell superficial 15-n

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.

ribbed first shoulder

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

steel comp 1335 or steel comp 1340 or steel comp 4037 or steel comp 4135 or steel comp 8637 or steel comp 8640 or steel comp 8735 or steel comp 8740

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.

QQ-W-405 fed spec 1st material response or astm A322 assn std 1st material response or QQ-W-405 fed spec 2nd material response or astm A322 assn std 2nd material response or QQ-W-405 fed spec 3rd material response or astm A322 assn std 3rd material response or QQ-W-405 fed spec 4th material response or QQ-W-405 fed spec 5th material response or astm A322 assn std 5th material response or QQ-W-405 fed spec 6th material response or QQ-W-405 fed spec 7th material response or QQ-W-405 fed spec 8th material response or astm A322 assn std 8th material response

Surface Treatment
The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.

cadmium and chromate or zinc and chromate

Surface Treatment Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.

QQ-P-416, ty 2, cl 2 fed spec 1st treatment response and QQ-P-416, ty 2, cl 2 fed spec 2nd treatment response or QQ-Z-325, ty 2, cl 2 fed spec 3rd treatment response and QQ-Z-325, ty 2, cl 2 fed spec 4th treatment 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 comp 1335 or steel comp 1340 or steel comp 4037 or steel comp 4135 or steel comp 8637 or steel comp 8640 or steel comp 8735 or steel comp 8740

What is the thread quantity per inch?

20

What is the head style?

Flat chamfer

What is the thread length?

0.930 inches minimum

What is the thread direction?

Right-hand

What is the thread class?

3a

What is the NSN for MS51948-4?

5306-01-008-4195

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 MS51948-4?

FSC 5306 ⁓ Bolts

NSN 5306-01-008-4195 BOLT,RIBBED SHOULDER

unf thread series cadmium surface treated 20 thread quantity per inch flat chamfer head style 0.930" thread length right-hand 3a thread class

NIIN
010084195
NIIN Date
08/24/75
Schedule B
7318152000 
Name Code
16014
FIIG
A003B0
Item Weight
0.000lbs
Item Dimensions
--
QUP
1 
Historical Price
$6.25 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

Major End Users Countries and entities

  • - Department of The Air Force 

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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

MS51948-4 / 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.