1A31-481

Helical Compression Spring Seat

NSN 5340-00-624-3638

DEMIL
Shelf Life
UOM
NIIN
Demil:
DEMIL/MLI
Shelf Life:
UOM:
NIIN:
006243638

Product Features

Amtl-steel astm a576, grade 1019

Product Technical Spec.

Countersink Angle In Deg:
30.0
Counterbore Diameter:
Between 0.5820 inches and 0.5880 inches
Overall Height:
Between 0.6090 inches and 0.6190 inches
First Step Diameter:
Between 0.9450 inches and 0.9510 inches
First Step Length:
Between 0.1620 inches and 0.1920 inches
Second Step Diameter:
1.2500 inches
Bore Diameter:
Between 0.4480 inches and 0.4580 inches
Design Type:
Solid
Countersink Diameter:
Between 0.6540 inches and 0.6600 inches
End Diameter:
0.7810 inches
Distance From End To First Step:
0.3130 inches
Counterbore Length:
Between 0.4850 inches and 0.5150 inches
Features Provided:
Casehardened
Material:
Steel
Material:
Steel
Style Designator:
Seat
Fsc Application Data:
Cylinder head assembly, gasoline engine, non-aircraft
NSN:
5340-00-624-3638
Item Name:
Valve Spring Retainer
Cage Code:
23382

Cross Referenced Parts

Part Number
Cage
RNCC
RNVC
RNAAC
Status
MSDS
SADC
Part Number:
31-481
Cage Code:
35301
RNCC:
3
RNVC:
2
RNAAC:
XX
Status:
A
MSDS:
SADC:
Part Number:
810277
Cage Code:
64104
RNCC:
5
RNVC:
9
RNAAC:
AX
Status:
A
MSDS:
SADC:

Part Identification

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
24328
FIIG:
T319-E
Concept No.:
App. Key:
EA
Cond. Code:
1
Status:
A

Part Materials

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
P
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

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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.

MOE Major Organizational Entities

Entity
DSOR
User:
GREECE Greece
DSOR:

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