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FSG 15 | Aerospace Craft And Structural Components
FSC 1560 | Airframe Structural Components
25-8837-4

Model: 25-8837-4

Aircraft Stiffener Rib

Properties:

End Application

B-52 aircraft

Part Name Assigned By Controlling Agency

Rib assembly, forward

Aircraft Location

Inboard flap

Aircraft Station Number

337.8 and 419.5

Aircraft Mission Design Series

B-52

Material

Aluminum alloy 2024

NSN

1560-01-646-6945

Part Number

25-8837-4

Description

Rib,stiffener,aircraft

CAGE

81205

A vertical, relatively short, rib located in a fuselage, nacelle, pod, and the like. It follows the periphery and provides additional rigidity. It may join various components such as stringers, longerons, and the like. It is supplementary to the frames and blukheads. See also rib (1), airfoil.

Part 25-8837-4 NSN 1560-01-646-6945

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

41027

FIIG:

A11400

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:

011790

UFC:

04720

LTL:

RATING VARIABLE

LCL:

WCC:

713

TCC:

SHC:

ACC:

Equipment for Aircraft

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Schedule B and Export

Schedule B: 8803909060
SITC: 79297
End Use: Parts for military-type goods
NAICS: 336419
USDA: 1

Freight Class: Other parts, nesoi, for use in other military aircraft, spacecraft and spacecraft launch vehicles (excluding parts of communication satellites)