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Datasheet. 8756521 specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
2a
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
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
0.688in. and 0.812in. ⁓13/16"
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.
6.250in. ⁓6-1/4"
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
hexagon
A measurement from the bottom to the top of the head,in distinction from depth.
0.297in. ⁓19/64"
0.736in. and 0.750in.
The length of a straight line which passes through the center of the shank unthreaded hole,and terminates at the inside circumference.
0.109in. first hole
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"
Those features,not otherwise specified,which may be required for proper functioning of the item.
finished head
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
20
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
30.0 rockwell c and 34.0 rockwell c
The distance from the shank hole centerline to the largest bearing surface of the head.
6.109in. first hole
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel comp 1340 or steel comp 4140 or steel comp 5140 or steel comp 8640
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
astm A322 assn std 1st material response or astm A331 assn std 1st material response or astm A322 assn std 2nd material response or astm A331 assn std 2nd material response or astm A322 assn std 3rd material response or astm A331 assn std 3rd material response or astm A322 assn std 4th material response or astm A331 assn std 4th material response
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.
Unf
Steel comp 1340 or steel comp 4140 or steel comp 5140 or steel comp 8640
20
Hexagon
0.688 inches minimum and 0.812 inches maximum
Right-hand
2a
Schedule B number: 7318152000
nmfc 093486
Bolts and bolts and their nuts or washers exported in the same shipment
FSC 5306 ⁓ Bolts
NSN 5306-00-679-9855 BOLT,MACHINE
unf thread series 20 thread quantity per inch hexagon head style 0.688" thread length right-hand 2a thread class
- NIIN
- 006799855
- NIIN Date
- 01/01/63
- Schedule B
- 7318152000
- Name Code
- 01847
- FIIG
- A003B0
- Item Weight
- 0.400lbs
- Item Dimensions
- --
- QUP
- Historical Price
- $528.88 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. | 5306006799855 | Cage SCY13 |
Major End Users Countries and entities
- - Department of The Navy
- - Department of The Army
- - Department of The Air Force
- - Lithuania
- - Brazil
- - Spain
- - Singapore
- - Kuwait
- - Morocco
- - Belgium
- - Canada
- - New Zealand
- - Germany
- - Netherlands
- - Portugal
- - Denmark
- - Greece
- - Turkey
Availability for 8756521 A member of our team will provide you with a price and availability quote
Request a Quote »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
8756521 / Bolt,machineWhat is the formal definition of this item?
An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. the threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. the head is not designed to be held or driven with an inserted driver or by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. for items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. see also screw, cap, hexagon head and screw, machine.
