Model: 349D1

Hexagon Castellated Plain Nut

Properties:

Thread Class

Thread Direction

Right-hand

Nut Style

Castellated, hexagon

Nut Height

Between 0.312 inches and 0.344 inches

Width Across Flats

Between 0.490 inches and 0.502 inches

Thread Series

Unf

Thready Qty Per Inch (tpi)

Thread Size

0.312 inches

Countersink Angle

110.0 degrees nut

Bearing Surface Type

Washer faced

Material

Steel comp 302 or steel comp 303 or steel comp 304 or steel comp 305 or steel comp 316 or steel comp 317 or steel comp 347 or steel comp 410 or steel comp 414 or steel comp 416

Material Specification

66 federal standard all material responses

Surface Treatment

Passivate

Surface Treatment Specification

Qq-p-35 federal specification single treatment response

Nondefinitive Specification/std Data

5 type

NSN

5310-00-167-1281

Part Number

349D1

Description

Nut,plain,castellated,hexagon

CAGE

0AHP5

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 349D1 NSN 5310-00-167-1281

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:

1.1000lbs

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