Thumbscrew
703061-1
(NSN) National Stock Number
5305-00-478-0643
Federal Supply Classification
5305 Screws
Item Name Code
06673
Schedule B Code
7318152000
Summary
2a thread class, right-hand thread direction, 0.240 inches minimum and 0.260 inches maximum thread length, 3.040 inches minimum and 3.060 inches maximum fastener length, knurled no. 1 head style, 0.480 inches minimum and 0.520 inches maximum head diameter
| DAC | HCC | DMIL | RNCC |
|---|---|---|---|
| 1 | - | - | 3 |
| RNVC | SADC | MSDS | RNAAC |
|---|---|---|---|
| 2 | - | - | SE |
Identification
An externally threaded fastener whose threaded portion is of one nominal diameter. It may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. It has either a vertically flattened, circular knurled, splined or smoothed, or wing type head, all of which are designed for rotation by the thumb and fingers. For items having wrenching facilities such as socket recess, multiple spline or slot heads, use screw (as modified) or bolt (as modified).
| INC | FIIG | Concept | Condition |
|---|---|---|---|
| 06673 | 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
0.240 inches minimum and 0.260 inches maximum
Details
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.Fastener Length
3.040 inches minimum and 3.060 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
knurled no. 1
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.Head Diameter
0.480 inches minimum and 0.520 inches maximum
Details
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.Head Height
0.190 inches minimum and 0.210 inches maximum
Details
A measurement from the bottom to the top of the head,in distinction from depth.Shoulder Diameter
0.164 inches minimum first shoulder and 0.165 inches maximum first shoulder
Details
The length of a straight line which passes through the center of the shoulder and terminates at the circumference.Shoulder Length
2.790 inches minimum first shoulder and 2.810 inches maximum first shoulder
Details
The length of the enlarged portion of the shank on the item,in distinction from width or diameter.Point Style
flat
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the point.Nominal Thread Diameter
0.138 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
32
Details
The number of threads on the item per linear inch measured on a line parallel to the thread axis.Shoulder Shape
round first shoulder
Details
The physical configuration of the unthreaded portion of a body adjacent to the head which is larger than the diameter of the shank.Material
steel comp 302 overall or steel comp 303 overall or steel comp 303se overall or steel comp 316 overall
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Material Document And Classification
mil-s-7720 mil spec 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.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.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 |
|---|---|---|---|
| - | - | - | - |
| RVC | WCC | TCC | SHC |
|---|---|---|---|
| - | - | - | - |
Certified Supplier
Order with confidence. We are a valued certified supplier serving customers in the military and aerospace industries.
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- HAZMAT Certified
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Manufacturer
FAQs
Frequently asked questions for NSN 5305-00-478-0643
What is the NIIN of the NSN 5305-00-478-0643?
The National Item Identification Number (NIIN) of the NSN 5305-00-478-0643 is 00-478-0643
When the NSN 5305-00-478-0643 was assigned to the Federal Catalog?
It was assigned 53 years ago, on Mon, Jun 28, 1971
Does the NSN 5305-00-478-0643 contain any precious metals?
Does not contain precious metal
Does the NSN 5305-00-478-0643 contain any hazardous material?
No data in HMIRS
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