BACB30NN3R6

BACB30NN3R6 Close Tolerance Screw

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Datasheet. BACB30NN3R6 specification

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

3a

Thread Direction
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

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

0.345in. ⁓23/64"

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.

0.637in. ⁓41/64"

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

flat countersunk

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

0.345in. and 0.383in.

Grip Diameter
The length of a straight line which passes through the center of the grip,and terminates at the circumference.

1.895in.

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

cross recess type 1

End Item Identification
The national stock number or the identification information of the end equipment for which the item is a part.

aircraft, B757

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

0.190in. (UTS #10)

Grip Length
A measurement of the longest dimension of the grip,in distinction from width.

0.375in.

Features Provided
Those features,not otherwise specified,which may be required for proper functioning of the item.

cetyl alcohol lubricant

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

32

Countersink Angle
The included angle of the countersink.

99.0 degrees and 101.0 degrees

Color
A characteristic of light that can be specified in terms of luminance,dominant wavelength,and purity.

red threads

Material
The chemical compound or mechanical mixture properties of which the item is fabricated.

titanium alloy

Surface Treatment
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.

phosphate

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.

unjf

Answers.

What class is the thread series?

Unjf

What material is the close tolerance screw made of ?

Titanium alloy

What is the thread quantity per inch?

32

What is the grip length?

0.375 inches

What is the head style?

Flat countersunk

What is the thread length?

0.345 inches

What is the thread direction?

Right-hand

What is the thread class?

3a

What is the NSN for BACB30NN3R6?

5305-01-521-4398

How is this classified for shipping?

Schedule B number: 8109900000
Zirconium and articles thereof nesoi

What's the federal classification of BACB30NN3R6?

FSC 5305 ⁓ Screws

NSN 5305-01-521-4398 SCREW,CLOSE TOLERANCE

Used on aircraft, b757. unjf thread series phosphate surface treated 32 thread quantity per inch 0.375" grip length flat countersunk head style 0.345" thread length right-hand 3a thread class

NIIN
015214398
NIIN Date
06/22/04
Schedule B
8109900000 
Name Code
29294
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

  • - New Zealand 

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BACB30NN3R6 / Screw,close toleranceWhat is the formal definition of this item?

A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. the nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (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. the head is designed to be held or driven with an inserted driver. it is not designed for rotation by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads.