PL51957-43-1

PL51957431 Machine Screw

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Datasheet. PL51957-43-1 specification

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

2a

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.

0.375in. ⁓3/8"

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.

0.375in. ⁓3/8"

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

round

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

0.155in. and 0.167in.

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

0.053in. and 0.062in. ⁓1/16"

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

cross recess type ii

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

0.164in. (UTS #8)

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

32

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

steel corrosion resisting

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.

MS1957 mil std single material response

Locking Feature 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 locking feature material.

MIL-F-18240 mil spec single material response

Screw Surface Treatment
The metallic,nonmetallic,and/or chemical properties with which the screw is plated,dipped and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.

passivate

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 type of screw surface treatment?

Passivate

What is the thread quantity per inch?

32

What is the head style?

Round

What is the thread length?

0.375 inches

What is the thread direction?

Right-hand

What is the thread class?

2a

What is the NSN for PL51957-43-1?

5305-01-436-9360

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 PL51957-43-1?

FSC 5305 ⁓ Screws

NSN 5305-01-436-9360 SCREW,MACHINE

unc thread series passivate screw surface treated 32 thread quantity per inch round head style 0.375" thread length right-hand 2a thread class

NIIN
014369360
NIIN Date
10/01/96
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

Other Part Numbers Parts with same form, fit, and function by other manufacturers

1. S-21298-79 Cage 26233
2. 531118-79 Cage 96214

Major End Users Countries and entities

  • - United Kingdom 

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Similar by Design Other screws with similar characteristics

Nothing similar to this part number was found in our inventory

PL51957-43-1 / 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.