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Datasheet. SS27576-6-74 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.
0.377in. and 0.419in. ⁓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.
5.164in. and 5.184in. ⁓5-3/16"
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
crowned hexagon
A measurement from the bottom to the top of the head,in distinction from depth.
0.189in. and 0.204in. ⁓7/32"
0.553in. and 0.564in.
The length of a straight line which passes through the center of the grip,and terminates at the circumference.
0.120in. and 0.166in.
The length of a straight line which passes through the center of the shank unthreaded hole,and terminates at the inside circumference.
0.106in. first hole and 0.116in. first hole
The national stock number or the identification information of the end equipment for which the item is a part.
HH-3F helicopter
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
0.373in. ⁓3/8"
A measurement of the longest dimension of the grip,in distinction from width.
4.625in. and 4.641in.
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
24
The maximum rated load in tension applied in a longitudinal direction,per unit of cross-sectional area,that the material can withstand without rupture.
11540 pounds per square inch
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
36.0 rockwell c and 41.0 rockwell c
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
56.0 rockwell c locking feature and 60.0 rockwell c locking feature
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.
feat
The distance from the shank hole centerline to the largest bearing surface of the head.
5.059in. first hole and 5.069in. first hole
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.
for use in critical applications; used as: bolt, SELF-Retaining, impedance type, 95ksi fsu, hex head, 450f; use MS21244 nuts with these bolts
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel comp 302 spring or steel comp 304 spring or steel comp 631 spring
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel comp 4340
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel corrosion resisting locking feature
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
MIL-B-83050 mil spec single material response locking feature
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
MIL-S-8844, class i mil spec single material response
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
QQ-W-423 fed spec single material response spring or AMS5678 assn std single material response spring
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
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.
passivate locking feature
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.
passivate spring
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.
AMS2501-3 assn std single treatment response
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-35 fed spec single treatment response locking feature
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
unjf
Answers.
Unjf
Steel corrosion resisting locking feature
Steel comp 4340
Steel comp 302 spring or steel comp 304 spring or steel comp 631 spring
24
4.625 inches minimum and 4.641 inches maximum
Crowned hexagon
0.377 inches minimum and 0.419 inches maximum
Right-hand
3a
Schedule B number: 7318152000
Bolts and bolts and their nuts or washers exported in the same shipment
FSC 5306 ⁓ Bolts
NSN 5306-01-469-6080 BOLT,SHEAR
Used on hh-3f helicopter. unjf thread series passivate spring surface treated for use in critical applications; used as: bolt, self-retaining, impedance type, 95ksi fsu, hex head, 450f; use MS21244 nuts with these bolts 24 thread quantity per inch 4.625" grip length crowned hexagon head style 0.377" thread length right-hand 3a thread class
- NIIN
- 014696080
- NIIN Date
- 11/16/99
- Schedule B
- 7318152000
- Name Code
- 15903
- FIIG
- A003B0
- 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
- - Italy
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SS27576-6-74 / Bolt,shearWhat is the formal definition of this item?
A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. the head is designed to accommodate an external wrench or driver. 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. the unthreaded portion is of specific 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. a locking feature may be incorporated in the design of the head or threads. see bolt, machine and bolt, clevis.
