155B7798-1

155B77981 Externally Relieved Body Bolt

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Datasheet. 155B7798-1 specification

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

2a

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.

1.590in. and 1.650in. ⁓1-21/32"

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.

4.350in. and 4.410in. ⁓4-27/64"

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

hexagon

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

1.125in. ⁓1-1/8"

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

8

Criticality Code Justification
The master requirement codes of those requirements which are technically critical by reason of tolerance,fit,performance,or other characteristics which affect identification of the item.

zzzy

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

steel corrosion resisting

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.

unc

Reference Number Differentiating Characteristics
A feature of the item of supply which must be specifically recorded when the reference number covers a range of items.

material will be in accordance with ships parts control center activity hx quality control, manufacturing and testing specifications

Answers.

What quantity is this sold in?

1EA

What class is the thread series?

Unc

What material is the externally relieved body bolt made of ?

Steel corrosion resisting

What is the thread quantity per inch?

8

What is the head style?

Hexagon

What is the thread length?

1.590 inches minimum and 1.650 inches maximum

What is the thread direction?

Right-hand

What is the thread class?

2a

What is the NSN for 155B7798-1?

5306-01-173-7281

How is this classified for shipping?

Schedule B number: 7318152000
nmfc 177970
Bolts and bolts and their nuts or washers exported in the same shipment

What's the federal classification of 155B7798-1?

FSC 5306 ⁓ Bolts

NSN 5306-01-173-7281 BOLT,EXTERNALLY RELIEVED BODY

unc thread series 8 thread quantity per inch hexagon head style 1.590" thread length right-hand 2a thread class

NIIN
011737281
NIIN Date
03/08/84
Schedule B
7318152000 
Name Code
06675
FIIG
A003B0
Item Weight
0.300lbs
Item Dimensions
60 X 25 X 25
QUP
Historical Price
$542.50 EA
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

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

1. 114D2332-4 Cage 04241

Major End Users Countries and entities

  • - Department of The Navy 

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Shipping Information

Special Handling
Other or no special handling required (sh) 
LTL (less than a truck load rating)
No rating 
LCL (less than a car load rating)
Rating variable
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)
Steel springs, (less than 35 feet) 
NMFC (national motor freight code)
177970 SPRINGS NOI STL O/T WIRE 
UFC (universal freight code)
87420 

Similar by Design Other bolts with similar characteristics

Nothing similar to this part number was found in our inventory

155B7798-1 / Bolt,externally relieved bodyWhat is the formal definition of this item?

An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercuts for thread relief). it is no. 10 (0.190 in.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads. excludes bolt, internal wrenching and thumbscrew. see also screw, externally relieved body.