Model: S-20255

Round Self-locking Nut

Properties:

Thread Pitch Diameters

+1.3399/+1.3439 inches

Thread Direction

Right-hand

Locking Feature

Prevailing torque with nonmetallic insert

Drive Point Depth

0.094 inches

Nut Style

Round

Nut Diameter

2.057 inches

Nut Thickness

0.438 inches

Drive Point Width

0.188 inches

Drive Point Quantity

Tempurature Rating

Between -60.0 degrees fahrenheit and 250.0 degrees fahrenheit

Thread Series

Uns

Thready Qty Per Inch (tpi)

Hardness Rating

Between 66.0 rockwell b and 92.0 rockwell b

Thread Size

1.376 inches

Countersink Angle

90.0 degrees both ends and 120.0 degrees both ends

Material

Plastic polyamide locking insert

Material

Steel comp 1015 nut or steel comp 1016 nut or steel comp 1017 nut or steel comp 1018 nut or steel comp 1019 nut or steel comp 1020 nut or steel comp 1021 nut or steel comp 1022 nut or steel comp 1023 nut or steel comp 1025 nut or steel comp 1026 nut or steel comp 1029 nut or steel comp 1030 nut or steel comp 1031 nut or steel comp 1033 nut or steel comp 1034 nut or steel comp 1035 nut or steel comp 1116 nut or steel comp 1117 nut or steel comp 1118 nut or steel comp 1212 nut or steel comp 1213 nut or steel comp 1215 nut

Surface Treatment

Cadmium nut and chromate nut or passivate nut

Surface Treatment Specification

Qq-p-416, type 2, cl 2 federal specification 1st treatment response nut or qq-p-35 federal specification 2nd treatment response nut

NSN

5310-01-155-4373

Part Number

S-20255

Description

Nut,self-locking,round

CAGE

26233

A nut, circular in shape, which may have wrenching facilities such as flats, holes, protusions, slots or splines in or on the periphery or in the face opposite the bearing surface. An integral feature is incorporated for locking on the threads of a mating member. Do not use if a more specific item name applies. Excludes collar, pin-rivet, threaded; insert, screw thread; nut (1), sleeve; nut(1), plain, cap; and turnbuckle body.

Part S-20255 NSN 5310-01-155-4373

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15895

FIIG:

A021A0

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

0.2000lbs

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

573

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 7318160000
SITC: 69421
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Nuts of iron or steel