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Datasheet. 74855 specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
3a
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.
0.410in. ⁓27/64"
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.
0.870in. ⁓7/8"
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
dee
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
0.750in.
A measurement from the bottom to the top of the head,in distinction from depth.
0.150in. and 0.165in. ⁓11/64"
0.240in.
The length of a straight line which passes through the center of the grip,and terminates at the circumference.
0.3745in. and 0.3750in.
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
0.375in. ⁓3/8"
A measurement of the longest dimension of the grip,in distinction from width.
0.310in.
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
24
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
28.0 rockwell c and 32.0 rockwell c
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.
extended dia on threaded end 0.368 in.min and 0.370 in.max, 0.150 in.lg, dia shall have 2 flats 0.130 in.
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel comp 8735 or steel comp 8740 or steel comp 4340
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
ams 6320 assn std 1st material response or ams 6322 assn std 2nd material response or ams 6415 assn std 3rd 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.
1EA
Unf
Steel comp 8735 or steel comp 8740 or steel comp 4340
24
0.310 inches
Dee
0.410 inches
Right-hand
3a
Schedule B number: 7318152000
nmfc 093486
Bolts and bolts and their nuts or washers exported in the same shipment
FSC 5306 ⁓ Bolts
NSN 5306-00-871-8772 BOLT,CLOSE TOLERANCE
unf thread series extended dia on threaded end 0.368 in.min 24 thread quantity per inch 0.310" grip length dee head style 0.410" thread length right-hand 3a thread class
- NIIN
- 008718772
- NIIN Date
- 01/01/60
- Schedule B
- 7318152000
- Name Code
- 27851
- FIIG
- A003B0
- Item Weight
- 0.000lbs
- Item Dimensions
- --
- QUP
- 1
- Historical Price
- $182.08 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
Major End Users Countries and entities
- - Department of The Air Force
- - Spain
- - Greece
- - Turkey
Availability for 74855 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
74855 / Bolt,close toleranceWhat is the formal definition of this item?
An externally threaded fastener whose unthreaded portion is of a specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. the nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. the head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads. for items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see bolt, shear. for items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see bolt, machine.
