21-4X41-2UNCHEXSPL

Hexagon Plain Nut

NSN 5310-00-253-2798

DEMIL

Shelf Life

UOM

NIIN

Demil:

Shelf Life:

N/A

UOM:

1 EA

NIIN:

002532798

Technical Specifications of NSN

Thread Class:

Thread Direction:

Right-hand

Nut Style:

Hexagon

Nut Height:

Between 1.874 inches and 1.970 inches

Width Across Flats:

Between 3.262 inches and 3.375 inches

Thread Series:

Unc

Thready Qty Per Inch (tpi):

4.5

Hardness Rating:

Between 90.0 rockwell b and 32.0 rockwell c

Thread Size:

2.250 inches

Bearing Surface Type:

Flat or chamfered

Material:

Steel

Surface Treatment:

Cadmium and chromate

Surface Treatment Specification:

Qq-p-416, type 2, cl 3 federal specification single treatment response

Nondefinitive Specification/std Data:

2 type and 4 style and b grade

NSN:

5310-00-253-2798

Item Name:

Locknut,union

Cage Code:

D9182

Other Related Parts

Part Number

Cage

RNCC

RNVC

RNAAC

Status

MSDS

SADC

Part Number:

MS51967-50

Cage Code:

96906

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

FFN836

Cage Code:

81348

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

D2617 PIECE-6

Cage Code:

87045

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

2 1/4 - 4 1/2 U NC - 2B

Cage Code:

D9182

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

12387305-50

Cage Code:

19207

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Identification

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

01857

FIIG:

A021A0

Concept No.:

App. Key:

Cond. Code:

Status:

Part Materials

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:

3.4000lbs

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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Pricing & Availability

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Definition Definition of approved item name (AIN): "Union Locknut"

A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)