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FSC 3040 | Miscellaneous Power Transmission Equipment
B831-4120

Model: B831-4120

Shouldered Shaft

Special Features:

Threaded area 6.0 in length .875-6-acme-2g left hand.

Properties:

First End Style

Flat keyway

End Similarity

Not identical

Second End Style

Splined (straight)

Overall Length

15.810 inches

End Application

Cradle handling assembly; seawolf class submarine ssn 23.

First End Keyway Width

Between 0.1880 inches and 0.1900 inches

First End External Keyway Length

2.375 inches

First End Keyway Depth

Between 0.107 inches and 0.123 inches

First End Diameter

Between 0.6230 inches and 0.6240 inches

Second End Diameter

Between 0.6230 inches and 0.6240 inches

Second End Spline Length

1.600 inches

Second End Spline Minor Diameter

Between 0.5220 inches and 0.5320 inches

Second End Spline Major Diameter

Between 0.6220 inches and 0.6230 inches

Step Quantity

Second End Spline Quantity

Largest Step Diameter

1.250 inches

Material

Stainless steel

Material Specification

Astm-a564, ty-630 national specification all material responses

NSN

3040-01-495-9445

Part Number

B831-4120

Description

Shaft,shouldered

CAGE

96169

A shaft having two or more different diameters (greater than 0.031 inches (0.79 millimeter)) along its length. It must have one or more of the following conditions: a specified surface finish designation in the range 1 to 125 microinches (0.025 to 3.2 micrometers) arithmetical average (aa), machined peripheral flat(s), circular groove(s), keyway(s), splines, threads, or holes. The ends and/or shoulders may be machined to accommodate bearings, couplings, and the like. It is not designed for use in aligning by fitting into corresponding holes of another item. For items used to support rotating members see axle(1), shouldered. For items not having any of the above conditions see pin, shoulder, headless. Excludes shaft(1), straight; and axle(1), straight.

Part B831-4120 NSN 3040-01-495-9445

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

22914

FIIG:

A23200

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:

18.0 X 0.0 X 0.0

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:

126900

UFC:

65750

LTL:

RATING VARIABLE

LCL:

WCC:

593

TCC:

SHC:

ACC:

Trailers/Vehicles

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Schedule B and Export

Schedule B: 8483105000
SITC: 74810
End Use: Industrial machines, other
NAICS: 333613
USDA: 1

Freight Class: Transmission shafts and cranks, except camshafts and crankshafts