Part Number H57-4

Hexagon Self-locking Nut
Description

Nut, self locking, 450 deg, thread size 1/4-28

Stock Availability  condition code chart

Part number h57-4 is in stock in the following quantities and conditions.

  • NE: 1836
  • NS: 103
  • SV: 1

Note: Availability of this item was last updated 04/26/2024 and may have changed since then. Request a quote for up to date pricing and availability.

Pricing & Availability

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Part Number
DEMIL
Shelf Life
UOM
NIIN
Part:
h57-4
Demil:
No
Shelf Life:
UOM:
NIIN:
009824988
NSN
National Stock Number:
5310-00-982-4988 5310009824988
TXT
Description:
Hexagon Self-locking Nut
INC
INC
Item Name Code:
05277
MRC:
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.AAJD
Thread Class:
3b
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:
An element inserted into the fastener,or a design feature,that enables the fastener to effectively resist vibration and rotation.AAUM
Locking Feature:
Prevailing torque all metal design
MRC:
The length of a straight line which passes through the center of a counterbored portion of a hole,and terminates at the circumference.AAWY
Counterbore Diameter:
0.253 inches nut and 0.293 inches nut
MRC:
A substance designed to provide a reduction of friction between the two surfaces in contact.ABAJ
Lubrication:
Dry film lubricant
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the nut.ACTA
Nut Style:
Hexagon
MRC:
None.ADEA
Nut Height:
Between 0.240 inches and 0.328 inches
MRC:
The shortest straight line between flats,perpendicular to the height.ASDB
Width Across Flats:
Between 0.430 inches and 0.439 inches
MRC:
A value which expresses the degree of heat or cold as applied to the operation,or limitation of operation,of an item.AZKQ
Tempurature Rating:
450.0 degrees fahrenheit
MRC:
A designation indicating the diameter-pitch combination and the number of threads per measurement scale applied to a series of diameters.BZRR
Thread Series:
Unf
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):
28
MRC:
A designation that is used for the purpose of general identification of the thread.CQJX
Thread Size:
0.250 inches
MRC:
The included angle of the countersink.CRSQ
Countersink Angle:
88.0 degrees nut
MRC:
Indicates the type of bearing surface.CRTM
Bearing Surface Type:
Chamfered or washer faced
MRC:
Designates the specific roughness rating of the bearing surface,representing the arithmetic average deviation of the surface from the meanline in profile.CSXL
Bearing Surface Finish:
125.0 microinches
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Stainless steel

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