A15-1-4

A1514 Externally Relieved Body Screw

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Datasheet. A15-1-4 specification

Thread Class
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.

2a

Thread Length
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.

0.344in. and 0.407in. ⁓27/64"

Fastener Length
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.

0.860in. and 0.891in. ⁓57/64"

Head Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.

fillister

Head Diameter
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.

0.389in. and 0.414in.

Head Height
A measurement from the bottom to the top of the head,in distinction from depth.

0.161in. and 0.170in. ⁓11/64"

First Diameter From Head

0.182in. and 0.185in.

Distance From Largest Bearing Surface Of Head To End Of First Diameter

0.484in. and 0.516in.

Internal Drive Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.

slot

Nominal Thread Diameter
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.

0.250in. ⁓1/4"

Thread Quantity Per Inch
The number of threads on the item per linear inch measured on a line parallel to the thread axis.

20

Minimum Tensile Strength
The maximum rated load in tension applied in a longitudinal direction,per unit of cross-sectional area,that the material can withstand without rupture.

80000 pounds per square inch

Part Name Assigned By Controlling Agency
The name assigned to the item by the government agency or commercial organization controlling the design of the item.

navy special project

Thread Series Designator
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.

unc

Answers.

What class is the thread series?

Unc

What is the thread quantity per inch?

20

What is the head style?

Fillister

What is the thread length?

0.344 inches minimum and 0.407 inches maximum

What is the thread class?

2a

What is the NSN for A15-1-4?

5305-00-161-0937

What's the federal classification of A15-1-4?

FSC 5305 ⁓ Screws

NSN 5305-00-161-0937 SCREW,EXTERNALLY RELIEVED BODY

unc thread series navy special project 20 thread quantity per inch fillister head style 0.344" thread length 2a thread class

NIIN
001610937
NIIN Date
11/03/71
Schedule B
 
Name Code
01852
FIIG
A003B0
QUP
 
Historical Price
$13.18 EA
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
Metal content unknown
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 Navy 

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Shipping Information

Special Handling
Other or no special handling required (sh) 
LTL (less than a truck load rating)
100.0 
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)
Metal hardware 
NMFC (national motor freight code)
096660 SCREWS NOI SILVER PLATED 
UFC (universal freight code)
50620 

Similar by Design Other screws with similar characteristics

Nothing similar to this part number was found in our inventory

A15-1-4 / Screw,externally relieved bodyWhat is the formal definition of this item?

An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercut for thread relief). it is no. 0 (0.060 in.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below no. 10 (0.190 in.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and multiple spline types) but may also be designed for external wrenching. a locking feature may be incorporated in the design of the head or threads. see also bolt, externally relieved body and bolt, internal wrenching.