Model: 44B3521-255A

Round Plain Nut

Special Features:

4 slots 0.438 in. W by 0.062 in. Deep extend across the width of the nut and are centered on the drive point centers

Properties:

Thread Class

Thread Direction

Left-hand

Drive Point Depth

Between 0.359 inches and 0.391 inches

Nut Style

Round

Nut Diameter

Between 2.984 inches and 3.016 inches

Nut Thickness

Between 0.984 inches and 1.016 inches

Drive Point Quantity

Drive Point Diameter

Between 0.359 inches and 0.391 inches

Thread Series

Unf

Thready Qty Per Inch (tpi)

Thread Size

1.125 inches

Countersink Angle

90.0 degrees nut

Material

Steel comp 303

Material Specification

Qq-s-764, cond a federal specification single material response

NSN

5310-00-833-0568

Part Number

44B3521-255A

Description

Nut,plain,round

CAGE

10855

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 44B3521-255A NSN 5310-00-833-0568

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

Freight Class: Nuts of iron or steel