Part Number 28402

Hexagon Head Cap Screw

Pricing & Availability

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Part Number

DEMIL

Shelf Life

UOM

NIIN

Part:

28402

Demil:

Shelf Life:

UOM:

NIIN:

001071597

NSN

National Stock Number:

5305-00-107-1597 5305001071597

TXT

Description:

Hexagon Head Cap Screw

INC

Item Name Code:

18257

MRC:

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

Thread Class:

MRC:

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.AAJF

Thread Direction:

Right-hand

MRC:

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

Thread Length:

1.062 inches

MRC:

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.AASB

Fastener Length:

2.750 inches

MRC:

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

Head Style:

Hexagon

MRC:

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

Head Height:

0.245 inches

MRC:

None.AATB

Width Between Flats:

0.500 inches

MRC:

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

Thread Diameter:

0.250 inches

MRC:

The number of threads on the item per linear inch measured on a line parallel to the thread axis.CMLP

Thready Qty Per Inch (tpi):

MRC:

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

Material:

Stainless steel

MRC:

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.SFTT

Surface Treatment:

Passivate

MRC:

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

Thread Series Designator:

Unc

MRC:

A feature of the item of supply which must be specifically recorded when the reference number covers a range of items.ZZZY

Reference Number Differentiating Characteristics:

Magnetic permeability shall be less than 1.2 before fabrication and not greater than 2.0 after fabrication as measured in a 200 oersted field

Code	Definition
FN	Factory New. Parts manufactured by then OEM and includes manufacturer certification.
NE	New. Parts manufactured by the OEM. May include manufacturer certification or company certification.
NS	New Surplus. New material item purchased from excess inventory.
OH	Overhauled. Product has been rebuilt and tested in accordance with the manufacturer's specifications by a repair shop (MRO).
SV	Serviceable product.
AR	As Removed. Product removed from aircraft or platform with no guarentee on the functionality of the part.
RP	Repairable. Product can be repaired by a MRO and be given a FAA 8130 or EASA Form 1 certification.

Part Number 28402

Pricing & Availability

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