Model: PB51175-1

Knurled Self-locking Nut

Special Features:

Slot 0.031 in. Wide cut into small diameter to depth of 0.165 in.; slot closed to 0.016 in. Wide to provide self-locking feature

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design

Small End Diameter

Between 0.248 inches and 0.250 inches

Nut Diameter

Between 0.289 inches and 0.294 inches

Nut Thickness

Between 0.365 inches and 0.370 inches

Knurl Width

0.250 inches

Thread Series

Unc

Thready Qty Per Inch (tpi)

Thread Size

0.138 inches

Material

Copper alloy 360

Material Specification

Ams 4610 assn standard single material response

Surface Treatment

Nickel

Surface Treatment Specification

Ps 22, fscm 55972 mfr ref single treatment response

NSN

5310-00-487-7081

Part Number

PB51175-1

Description

Nut,self-locking,knurled

CAGE

55972

A nut round in shape, whose outer surface or portion(s) is/are knurled. It may have provisions for external wrenching. An integral feature is incorporated for locking on the threads of a mating member.

Part PB51175-1 NSN 5310-00-487-7081

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15894

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:

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: 7415290000
SITC: 69432
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Copper screws, nuts, bolts, rivets, and other fasteners not threaded