2M1778

Helical Compression Spring Seat

NSN 5340-00-853-6544

DEMIL

Shelf Life

UOM

NIIN

Demil:

Shelf Life:

N/A

UOM:

1 EA

NIIN:

008536544

Product Technical Spec.

Countersink Angle In Deg:

45.0

Chamfer Angle In Deg:

45.0

Overall Height:

0.5000 inches

First Step Diameter:

1.2500 inches

Second Step Length:

Between 0.5400 inches and 0.5420 inches

Bore Diameter:

0.4920 inches

Design Type:

Solid

Countersink Diameter:

0.5410 inches

End Diameter:

Between 0.8650 inches and 0.8750 inches

Distance From End To First Step:

0.4000 inches

Material:

Steel, qq-s-637, comp b1113

Material:

Steel, qq-s-637, comp b1113

Style Designator:

Seat

NSN:

5340-00-853-6544

Item Name:

Valve Spring Retainer

Cage Code:

25496

Cross Referenced Parts

Part Number

Cage

RNCC

RNVC

RNAAC

Status

MSDS

SADC

Part Number:

2M1778

Cage Code:

11083

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

IPD2M1778

Cage Code:

55883

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:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

0.1000lbs

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:

133300

UFC:

63220

LTL:

RATING VARIABLE

LCL:

WCC:

713

TCC:

SHC:

ACC:

Trailers/Vehicles

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Pricing & Availability

Submit this form for current pricing and availability quote on part number 2m1778 and/or cross reference parts.

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.