4426

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WASHER,FLAT

HERCULES ENGINE CO INCATA 20

Where to Buy

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Documentation

General information based on part classification, not a certification determination. Your operator's quality manual governs.

OEM / Production Approval Holder Part8130-3 Eligible

What to ask the seller for

  • FAA Form 8130-3 from the PAH or an authorized release traceable to the PAH
  • Manufacturer's CofC if a Form 8130-3 was not issued

Governing reference: FAA Order 8130.21J

PMA Alternatives7 found

PMA Part #ManufacturerSupplementApprovedSource
SL44-26 P007
Stud, 7/16 Dia. Fine Thread
Superior Air Parts Inc2572022-12-06—
SL44-26 P003
Stud, 7/16 Dia. Fine Thread
Superior Air Parts Inc2572022-12-06—
SL44-26 P012
Stud, 7/16 Dia. Fine Thread
Superior Air Parts Inc2572022-12-06—
SL44-26-P03
Stud, 7/16 Dia. Fine Thread
Superior Air Parts Inc87 Revision 82011-04-14—
SL44-26-P12
Stud, 7/16 Dia. Fine Thread
Superior Air Parts Inc87 Revision 82011-04-14—
SL44-26-P07
Stud, 7/16 Dia. Fine Thread
Superior Air Parts Inc87 Revision 82011-04-14—
SL44-26
Stud, 7/16 Dia. Fine Thread
Superior Air Parts Inc87 Revision 82011-04-14—

Supplemental Type Certificates

FAA-approved modifications that reference this part number

No current STCs reference this part number in their description.

Airworthiness Directives

Synced 40 days ago (09/27/2026)

No Active Airworthiness Directives

No FAA or EASA ADs are linked to this part number. Always verify against the aircraft's maintenance records before install.

Service Difficulty Reports

No Service Difficulty Reports

No failure reports found for this part number in the FAA SDR database.

Suspect-Parts Alerts (SUP/UPN)

No Suspect-Parts Alerts

This manufacturer is not named in any active FAA Suspect Unapproved Parts (SUP/UPN) notification.

NSN Cross-References3 NSNs — DLA WebFLIS

National Stock Numbers assigned to this part number by the U.S. Defense Logistics Agency

NSNStandardized NameFSCDLA List Price (gov't catalog)CAGE / Manufacturer
2805-00-364-1282DEFLECTOR,DIRT AND LIQUID2805$0.72/EA16460MARINE ENGINE SPECIALTIES DIV OF MESCO TECTONICS INC
5310-00-426-8462NUT,PLAIN,HEXAGON5310$10.81/EA33705KINGHAM TRAILER CO
5310-01-056-1382WASHER,FLAT5310$0.32/EA28265HERCULES ENGINE CO INC

DLA PUBLOG published list price — government procurement catalog, not a commercial market price. Prices may differ from current commercial availability.

Government Award Prices

U.S. government contract award prices from FPDS — unit prices for NSN purchases by DoD/DLA agencies

No government contract award price data found for this part number.

Identifiers

Manufacturer

HERCULES ENGINE CO INC

Source

DLA WebFLIS

ATA Chapter

20

Type

OEM

Part ID: nsn:4426 | Source: DLA WebFLIS | Last updated: 2026-11-07