Model: 641-8178-001

Knurled Plain Nut

Properties:

Thread Class

Thread Direction

Right-hand

Counterbore Diameter

0.625 inches nut

Nut Style

Knurled

Nut Diameter

Between 0.748 inches and 0.752 inches

Nut Thickness

0.470 inches

Nut Counterbore Depth

0.190 inches nut

Drilled Hole Diameter

0.062 inches

Hole Type And Quantity

2 drilled

Thread Series

Unf

Thready Qty Per Inch (tpi)

Thread Size

0.250 inches

Hole Configuration Style

Configuration f

Countersink Angle

80.0 degrees both ends and 100.0 degrees both ends

Material

Steel comp 303

Material Specification

Astm a582 cond a assn standard single material response

Surface Treatment

Passivate

Surface Treatment Specification

580-0025-000 fscm 13499 mfr ref single treatment response

NSN

5310-01-089-6041

Part Number

641-8178-001

Description

Nut,plain,knurled

CAGE

13499

A nut, round in shape, having all or part of its outer surface knurled. It may have provisions for external wrenching. For items having a thickness (or height) exceeding two times the outside diameter, use post, electrical-mechanical equipment. See also nut (1), plain, round. (when height or thickness, and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance).

Part 641-8178-001 NSN 5310-01-089-6041

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15886

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:

0.1000lbs

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