SR253

Helical Compression Spring Seat

NSN 5340-00-386-3621

DEMIL

Shelf Life

UOM

NIIN

Demil:

Shelf Life:

N/A

UOM:

1 EA

NIIN:

003863621

Technical Specifications of NSN

Counterbore Diameter:

0.7344 inches

Overall Height:

0.4677 inches

First Step Diameter:

0.9000 inches

Second Step Diameter:

1.1870 inches

Bore Diameter:

0.7100 inches

Design Type:

Solid

End Diameter:

0.8000 inches

Distance From End To First Step:

0.3670 inches

Counterbore Length:

0.3420 inches

Features Provided:

Casehardened

Material:

Steel, fed standard 66, aisi/sae 1010

Material:

Steel, fed standard 66, aisi/sae 1010

Style Designator:

Seat

Fsc Application Data:

Gasoline engine, except aircraft prime mover type

NSN:

5340-00-386-3621

Item Name:

Valve Spring Retainer

Cage Code:

59875

Other Related Parts

Part Number

Cage

RNCC

RNVC

RNAAC

Status

MSDS

SADC

Part Number:

105306R2

Cage Code:

89346

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

R838

Cage Code:

80900

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

105306R1

Cage Code:

89346

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

107306R2

Cage Code:

92679

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

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:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

194160

UFC:

55210

LTL:

50.0

LCL:

WCC:

596

TCC:

SHC:

ACC:

Trailers/Vehicles

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Pricing & Availability

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

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.