Internally Relieved Body Bolt
MB25-20000
(NSN) National Stock Number
5306-01-077-4461
Federal Supply Classification
5306 Bolts
Item Name Code
06676
Schedule B Code
7318152000
Summary
2a thread class, right-hand thread direction, 1.250 inches nominal thread length, 6.500 inches nominal fastener length, hexagon head style, 0.380 inches nominal head height
| DAC | HCC | DMIL | RNCC |
|---|---|---|---|
| 5 | - | - | 5 |
| RNVC | SADC | MSDS | RNAAC |
|---|---|---|---|
| 9 | - | - | KZ |
Identification
An externally threaded fastener whose external threaded portion is of one nominal diameter. It has a concentric hole along the longitudinal centerline which may extend a part or the full length of the bolt. The concentric hole along the centerline may be counterbored and/or internally threaded at the head end or the bolt end. The head is designed to be held or driven by an external and/or internal driver. For items having a hole(s) perpendicular to the axis which meet the concentric hole along the longitudinal centerline, see bolt, fluid passage.
| INC | FIIG | Concept | Condition |
|---|---|---|---|
| 06676 | A003B0 | - | 1 |
Specifications
Thread Class
2a
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
1.250 inches nominal
Details
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.Fastener Length
6.500 inches nominal
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
0.380 inches nominal
Details
A measurement from the bottom to the top of the head,in distinction from depth.Width Between Flats
1.590 inches nominal
Details
None.Shank Unthreaded Hole Diameter
0.188 inches nominal first hole0.218 inches nominal second hole
Details
The length of a straight line which passes through the center of the shank unthreaded hole,and terminates at the inside circumference.Concentric Hole Depth
3.250 inches nominal
Details
None.Concentric Hole Diameter
0.188 inches nominal
Details
None.Nominal Thread Diameter
1.000 inches
Details
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.Thread Quantity Per Inch
14
Details
The number of threads on the item per linear inch measured on a line parallel to the thread axis.Hardness Rating
33.0 rockwell c minimum overall and 39.0 rockwell c maximum overall
Details
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.Distance From Head Largest Bearing Surface To Shank Hole Center
2.750 inches nominal first hole6.250 inches nominal second hole
Details
The distance from the shank hole centerline to the largest bearing surface of the head.Special Features
anneal head and threads; under the head is a 0.380 in. neck height with 12 tpi 0.034 over shank dia.
Details
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 on one or more other functions.Material
steel comp 4135 overall or steel comp 4137 overall or steel comp 4140 overall or steel comp 4142 overall or steel comp 4145 overall
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Material Document And Classification
sae assn std all material responses 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.Style Designator
concentric hole unthreaded
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.Thread Series Designator
unc
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 |
|---|---|---|---|---|---|---|---|
| 5714128 | 34623 | E | - | 3 | 2 | - | KZ |
| ARL5714128 | 9R250 | 5 | - | 5 | 2 | - | ZZ |
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
| HMIC | PMIC | ESD/EMI | Criticality |
|---|---|---|---|
| N | U | - | - |
Freight
Universal / National Freight and Handling Information
| UFC | HMC | LTL | LCL |
|---|---|---|---|
| 48950 | - | W | - |
| RVC | WCC | TCC | SHC |
|---|---|---|---|
| - | 573 | Z | 9 |
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Manufacturer
FAQs
Frequently asked questions for NSN 5306-01-077-4461
What is the NIIN of the NSN 5306-01-077-4461?
The National Item Identification Number (NIIN) of the NSN 5306-01-077-4461 is 01-077-4461
When the NSN 5306-01-077-4461 was assigned to the Federal Catalog?
It was assigned 45 years ago, on Thu, May 24, 1979
Does the NSN 5306-01-077-4461 contain any precious metals?
Type/content is unknown
Does the NSN 5306-01-077-4461 contain any hazardous material?
No data in HMIRS
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