Machine Bolt
NU4-31
(NSN) National Stock Number
5306-00-726-4433
Federal Supply Classification
5306 Bolts
Item Name Code
01847
Schedule B Code
7318152000
Summary
3a thread class, right-hand thread direction, 0.437 inches minimum and 0.515 inches maximum thread length, 3.140 inches minimum and 3.187 inches maximum fastener length, hexagon head style, 0.140 inches minimum and 0.172 inches maximum head height
| DAC | HCC | DMIL | RNCC |
|---|---|---|---|
| 4 | - | - | 3 |
| RNVC | SADC | MSDS | RNAAC |
|---|---|---|---|
| 2 | - | - | ZZ |
Identification
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.
| INC | FIIG | Concept | Condition |
|---|---|---|---|
| 01847 | A003B0 | - | 1 |
Specifications
Thread Class
3a
Details
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.Thread Direction
right-hand
Details
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.Thread Length
0.437 inches minimum and 0.515 inches maximum
Details
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.Fastener Length
3.140 inches minimum and 3.187 inches maximum
Details
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.Head Style
hexagon
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.Head Height
0.140 inches minimum and 0.172 inches maximum
Details
A measurement from the bottom to the top of the head,in distinction from depth.Width Between Flats
0.428 inches minimum and 0.440 inches maximum
Details
None.Locking Feature
pellet threads
Details
An element inserted into the fastener,or a design feature,that enables the fastener to effectively resist vibration and rotation.Nominal Thread Diameter
0.250 inches
Details
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.Grip Length
2.671 inches minimum and 2.703 inches maximum
Details
A measurement of the longest dimension of the grip,in distinction from width.Features Provided
finished head
Details
Those features,not otherwise specified,which may be required for proper functioning of the item.Thread Quantity Per Inch
28
Details
The number of threads on the item per linear inch measured on a line parallel to the thread axis.Minimum Tensile Strength
125000 pounds per square inch
Details
The maximum rated load in tension applied in a longitudinal direction,per unit of cross-sectional area,that the material can withstand without rupture.Hardness Rating
26.0 rockwell c minimum overall and 32.0 rockwell c maximum overall
Details
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.Material
steel comp 4140 overall or steel comp 8740 overall or steel comp 8630 overall or steel comp 8735 overall or steel comp 4130 overall or steel comp 4037 overall
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Material Document And Classification
mil-s-5626 mil spec 1st material response overall or mil-s-6049 mil spec 2nd material response overall or mil-s-6050 mil spec 3rd material response overall or mil-s-6098 mil spec 4th material response overall or mil-s-6758 mil spec 5th material response overall or ams 6300 assn std 6th material response overall
Details
The specification, standard, or manufacturer's reference and the classification designation, such as class, condition, temper, and the like, that identifies the material.Surface Treatment
cadmium overall
Details
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.Surface Treatment Document And Classification
qq-p-416,type 2,class 3 fed spec single treatment response overall
Details
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.Thread Series Designator
unf
Details
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.Master-Cross Reference List
| Part | CAGE | DAC | HCC | RNCC | RNVC | MSDS | RNAAC |
|---|---|---|---|---|---|---|---|
| NK4-31 | 26233 | 5 | - | 5 | 9 | - | KZ |
| 584305-1 | 22907 | X | - | 5 | 9 | - | XX |
| 128SCAM100-11 | 26512 | X | - | 5 | 9 | - | XX |
| 584305-1 | 22997 | 5 | - | C | 1 | - | KE |
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
| HMIC | PMIC | ESD/EMI | Criticality |
|---|---|---|---|
| N | A | - | - |
Freight
Universal / National Freight and Handling Information
| UFC | HMC | LTL | LCL |
|---|---|---|---|
| 48950 | - | W | - |
| RVC | WCC | TCC | SHC |
|---|---|---|---|
| - | 573 | Z | 9 |
Certified Supplier
Order with confidence. We are a valued certified supplier serving customers in the military and aerospace industries.
- ISO9001 / AS9100 Quality Standards
- HAZMAT Certified
- On Time Delivery
- Qualified sales team
- Counterfeit Parts Prevention
- 100% Product Inspections
Manufacturer
NYLOK CORPORATION DBA NYLOK WESTERN FASTENER DIV NYLOK WESTERN
CAGE: 26233
ANAHEIM
, CA
, 92801-6738
UNITED STATES
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FAQs
Frequently asked questions for NSN 5306-00-726-4433
What is the NIIN of the NSN 5306-00-726-4433?
The National Item Identification Number (NIIN) of the NSN 5306-00-726-4433 is 00-726-4433
When the NSN 5306-00-726-4433 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Sun, Jan 1, 1961
Does the NSN 5306-00-726-4433 contain any precious metals?
Does not contain precious metal
Does the NSN 5306-00-726-4433 contain any hazardous material?
No data in HMIRS
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