Model: 2578688-001A

Hexagon Castellated Plain Nut

Special Features:

Shot peened

Properties:

Thread Class

Thread Direction

Right-hand

Nut Style

Castellated, hexagon

Nut Height

Between 0.920 inches and 0.960 inches

Width Across Flats

2.865 inches

Thread Series

Thready Qty Per Inch (tpi)

Thread Size

2.375 inches

Bearing Surface Type

Washer faced

Bearing Surface Finish

125.0 microinches

Material

Steel

Material Specification

Ce-0906, fscm 06848 mfr ref single material response

Surface Treatment

Cadmium

Surface Treatment Specification

Cp-0400 type 2 fscm 06848 mfr ref single treatment response

Test Data Document

81349-mil-i-6870 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).

NSN

5310-00-432-3494

Part Number

2578688-001A

Description

Nut,plain,castellated,hexagon

CAGE

06848

A nut having 6 flat sides, flat on the bottom and having a slotted cylindrical or dome shaped upper portion. It is designed to provide positive locking when used with a solid or split (cotter) pin. Excludes nut (1), plain, slotted, hexagon.

Part 2578688-001A NSN 5310-00-432-3494

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

01854

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:

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