Model: 81581P

Round Self-locking Nut

Properties:

Thread Pitch Diameters

+2.3239/+2.3290 inches

Thread Direction

Right-hand

Locking Feature

Prevailing torque with nonmetallic insert

Small End Diameter

2.750 inches

Drive Point Depth

Between 0.120 inches and 0.127 inches

Nut Style

Round

Nut Diameter

Between 3.141 inches and 3.156 inches

Nut Thickness

0.594 inches

Drive Point Width

Between 0.230 inches and 0.260 inches

Undercut Thickness

0.141 inches

Drive Point Quantity

Thread Series

Uns

Thready Qty Per Inch (tpi)

Thread Size

2.360 inches

Material

Plastic locking insert

Material

Steel comp 1015 nut or steel comp 1018 nut or steel comp 1020 nut or steel comp 1117 nut or steel comp 1118 nut or steel comp 1213 nut or steel comp 1215 nut

NSN

5310-01-057-9353

Part Number

81581P

Description

Nut,self-locking,round

CAGE

D9182

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 81581P NSN 5310-01-057-9353

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:

0.8000lbs

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