Model: 298B40

Round Plain Nut

Properties:

Thread Class

Thread Direction

Right-hand

Nut Style

Round

Nut Diameter

Between 0.800 inches and 0.802 inches

Nut Thickness

Between 0.235 inches and 0.265 inches

Width Across Flats

Between 0.734 inches and 0.766 inches

Thread Series

Unef

Thready Qty Per Inch (tpi)

Thread Size

0.625 inches

Part Name Assigned By Controlling Agency

Navy special project

Material

Aluminum alloy 6061

Material Specification

Qq-a-225/8, t651 federal specification single material response

Surface Treatment

Chromate

Surface Treatment Specification

Mil-c-5541, cl 3 military specification single treatment response

NSN

5310-01-241-6357

Part Number

298B40

Description

Nut,plain,round

CAGE

00752

A nut, circular in shape, which may have wrenching facilities such as flats, holes, protrusions, slots or splines in or on the periphery or in the face opposite the bearing surface. For items having a thickness (or height) exceeding two times the outside diameter, use post, electrical-mechanical equipment. See also nut (1), plain, knurled. (when height or thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

Part 298B40 NSN 5310-01-241-6357

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15887

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: 7616995095
SITC: 69979
End Use: Finished metal shapes
NAICS: 332999
USDA: 1

Freight Class: Articles of aluminum nesoi