NAS1221R3-2L

NAS1221R32L Machine Screw

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Datasheet. NAS1221R3-2L 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.

0.338in. ⁓11/32"

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.

0.449in. and 0.479in. ⁓31/64"

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.

0.344in. and 0.385in.

Locking Feature
An element inserted into the fastener,or a design feature,that enables the fastener to effectively resist vibration and rotation.

patch

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

torque set

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)

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

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

steel comp 4140 or steel comp 4340 or steel comp E4340 or steel comp 8740

Screw Material Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the screw material.

MIL-S-5626 mil spec 1st material response or ams 6415 assn std 2nd material response or MIL-S-5000 mil spec 3rd material response or MIL-S-6049 mil spec 4th material response

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 is the thread quantity per inch?

32

What is the head style?

Flat countersunk

What is the thread length?

0.338 inches

What is the thread direction?

Right-hand

What is the thread class?

3a

What is the NSN for NAS1221R3-2L?

5305-01-583-4848

How is this classified for shipping?

Schedule B number: 7318152000
Bolts and bolts and their nuts or washers exported in the same shipment

What's the federal classification of NAS1221R3-2L?

FSC 5305 ⁓ Screws

NSN 5305-01-583-4848 SCREW,MACHINE

unjf thread series 32 thread quantity per inch flat countersunk head style 0.338" thread length right-hand 3a thread class

NIIN
015834848
NIIN Date
03/26/10
Schedule B
7318152000 
Name Code
06657
FIIG
A500D0
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

Major End Users Countries and entities

  • - Turkey 

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Similar by Design Other screws with similar characteristics

Nothing similar to this part number was found in our inventory

NAS1221R3-2L / Screw,machineWhat is the formal definition of this item?

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). no. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal 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. excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. see also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.