Model: 21978H

Compression Helical Spring

Properties:

Inside Diameter

0.375 inches

End Style

E4 spring end, squared and ground both ends

End Style

Spring end, squared and ground both ends

Bore Diameter

0.531 inches

Spring Free Length

1.250 inches

Accommodated Rod Diameter

0.313 inches

Coil Quantity

Load Rating

Between 16.830 pounds and 20.570 pounds

Spring Solid Outside Diameter

0.500 inches

Coil Helix Direction

Right-hand or left-hand

Spring Free Outside Diameter

0.500 inches

Spring Length Under Load

0.750 inches

Material

Steel

Style Designator

Cylindrical

NSN

5360-00-378-7218

Part Number

21978H

Description

Spring,helical,compression

CAGE

29510

Part 21978H NSN 5360-00-378-7218

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

04226

FIIG:

A02900

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:

177970

UFC:

87420

LTL:

NO RATING

LCL:

WCC:

579

TCC:

SHC:

ACC:

Trailers/Vehicles

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