42578-2

Helical Compression Spring Seat

NSN 5340-00-179-6429

DEMIL

Shelf Life

UOM

NIIN

Demil:

Shelf Life:

N/A

UOM:

1 EA

NIIN:

001796429

Product Features

Matl-cres steel ams 5643, comp 17-4ph; passivated, hrps-161 hydraulic research; right end c/bored 0.307/0.308 in. Diameter by 0.180/0.185 in. Deep, right end slotted 4 places equally spaced 0.093 in. W by 0.080 in. Deep, 4 holes 0.109 in. Diameter equally spaced drilled through seat 0.306 in. From right end

Technical Specifications of NSN

Overall Height:

Between 0.4380 inches and 0.4400 inches

First Step Diameter:

Between 0.4335 inches and 0.4355 inches

Bore Diameter:

Between 0.2350 inches and 0.2450 inches

Design Type:

Solid

End Diameter:

Between 0.3650 inches and 0.3750 inches

Distance From End To First Step:

Between 0.3550 inches and 0.3650 inches

Material:

Steel, corrosion resisting

Material:

Stainless steel

Surface Treatment:

Passivate

Surface Treatment:

Passivated

Test Data Document:

81349-mil-i-6868 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).

NSN:

5340-00-179-6429

Item Name:

Valve,spring Retainer

Cage Code:

81873

Other Related Parts

No other part numbers with same form, fit, and function found.

Part Identification

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

24328

FIIG:

T319-E

Concept No.:

App. Key:

Cond. Code:

Status:

Part Materials

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:

5.0 X 5.0 X 1.2

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:

177980

UFC:

87430

LTL:

55.0

LCL:

55.0

WCC:

579

TCC:

SHC:

ACC:

Equipment for Aircraft

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Pricing & Availability

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Definition Definition of approved item name (AIN): "Spring Retainer Valve"

A circular item, usually having a flat or grooved flange, boss(es), and/or counterbore designed to accommodate the end of the spring. It is used to position the spring, but does not encase the spring or restrain lateral motion. It may be used in conjunction with a retainer, helical compression spring. Excludes washer (1), (as modified); seat, ball socket and holder, spring. See also rotor, engine poppet valve.