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FSC 4730 | Railing Fittings Lubrication Tube Pipe Hose
MS21915W12-8

Model: MS21915W12-8

Boss Reducer

Properties:

Thread Class

3a 2nd end

Thread Class

3b 1st end

Reducer Type

Concentric

Maximum Operating Temp

250.0 degrees fahrenheit single response

End Application

Gun mount, mk 75 (gm)

Connection Style

External seat for gasket seal (boss) 2nd end

Connection Style

Gasket seal (boss) 1st end

Connection Type

Threaded external boss 2nd end

Connection Type

Threaded internal boss 1st end

Thready Qty Per Inch (tpi)

12 1st end

Maximum Operating Pressure

3000.0 pounds per square inch single response

Thread Size

0.750 inches 2nd end

Thread Size

1.062 inches 1st end

Nominallength

1.828 inches

Material

Aluminum alloy 7075

Material Specification

Qq-a-225/6, t6, t62 or t851 federal specification single material response

Media For Which Designed

Hydraulic fluid single response

Surface Treatment

Anodize

Surface Treatment Specification

Mil-a-8625, type 2, class 1 military specification single treatment response

Thread Series Designator

Unj 1st end

Thread Series Designator

Unjf 2nd end

Specification Data

81343-as18280 professional/industrial association standard

NSN

4730-00-640-7196

Part Number

MS21915W12-8

Description

Reducer,boss

CAGE

81343

A straight fitting having a boss connection of a different size at each end. Both connections have external or internal machine threads (straight threads other than pipe or hose series) and are designed to facilitate a gasket, preformed packing, washer, or the like to form a seal at the boss. Excludes bushing (as modified).

Part MS21915W12-8 NSN 4730-00-640-7196

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

23541

FIIG:

A080B0

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:

0.2000lbs

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:

051400

UFC:

29700

LTL:

77.5

LCL:

WCC:

576

TCC:

SHC:

ACC:

Construction Materials

End Items End applications NSN 4730-00-640-7196 is a component of

Mk 75 (gm) Gun Mount

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Schedule B and Export

Schedule B: 7609000000
SITC: 68427
End Use: Finished metal shapes
NAICS: 332919
USDA: 1

Freight Class: Aluminum tube or pipe fittings (couplings,elbows sleeves)