Model: A51H40512-11

Round Plain Nut

Description:

3b thread class, right-hand , 0.090 inches drive point depth, round nut style, 1.245 inches nut diameter, 0.343 inches nut thickness.

Special Features:

0.045 in. Min 0.050 in. Max diameter 3 lockwire holes equally spaced 120 degrees apart on each side

Properties:

Thread Class

Thread Direction

Right-hand

Drive Point Depth

0.090 inches

Drive Point Depth

0.090 inches

Nut Style

Round

Nut Diameter

Between 1.245 inches and 1.255 inches

Nut Thickness

0.343 inches

Drive Point Width

0.120 inches

Drive Point Width

0.120 inches

Drive Point Quantity

Thread Series

Unj

Thready Qty Per Inch (tpi)

Hardness Rating

Between 38.0 rockwell c and 45.0 rockwell c

Thread Size

0.875 inches

Countersink Angle

45.0 degrees nut

Part Name Assigned By Controlling Agency

Navy special project

Material

Steel comp xm-12

Material Specification

Ams5659 mfr ref single material response

Surface Treatment

Passivate

Surface Treatment Specification

Mil-s-5002 military specification single treatment response

Test Data Document

81349-mil-i-6868 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

5310-00-003-6545

Part Number

A51H40512-11

Description

Nut,plain,round

CAGE

26512

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 A51H40512-11 NSN 5310-00-003-6545

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