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MS21915-4-2

Model: MS21915-4-2

Boss Reducer

Special Features:

Supports model a10 grumman aircraft

Properties:

Thread Class

3a 2nd end

Thread Class

3b 1st end

Reducer Type

Concentric

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

Thread Size

0.312 inches 2nd end

Thread Size

0.438 inches 1st end

Nominallength

1.234 inches

Material

Steel comp 1137 or steel comp 1141

Material Specification

66 federal standard all material responses

Surface Treatment

Cadmium

Surface Treatment Specification

Qq-p- type 2, class 2 federal specification single treatment response

Thread Series Designator

Unjf all ends

Specification Data

96906-ms21915 government standard

NSN

4730-00-922-5141

Part Number

MS21915-4-2

Description

Reducer,boss

CAGE

96906

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 MS21915-4-2 NSN 4730-00-922-5141

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:

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:

052190

UFC:

30000

LTL:

RATING VARIABLE

LCL:

WCC:

576

TCC:

SHC:

ACC:

Construction Materials

Pricing & Availability Check

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Schedule B and Export

Schedule B: 7307994000
SITC: 67959
End Use: Iron and steel products, other
NAICS: 332919
USDA: 1

Freight Class: Other fittings nesoi of alloy steel not stainless