Where to Buy
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Documentation
General information based on part classification, not a certification determination. Your operator's quality manual governs.
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 Alternatives
No PMA alternatives found for this part. This does not mean none exist — only that none are currently in our database.
Supplemental Type Certificates5 found
FAA-approved modifications that reference this part number
Installation of Shadin 910502 'Digiflo' fuel flow indicator system and removal of fuel pressure indicating system. S/N 30-1656, R/N N-640AA Only.
Aircraft: PA-30
Installation of SP444, TCA1742, TSP442, 1656, and 4078 batteries.
Aircraft: ATR42-200, ATR42-300, ATR42-320, ATR42-500 +7 more
Direct replacement of existing certified Sat 1656 battery with a Saft battery or equivalent battery as modified by exchanging the VPH160 cells in the Saft 1656 battery with VP170KH or VHP170KH cells. (206B III)
Aircraft: 206B
Installation of SAFT 1656-1 nickel cadmium electrical storage battery.
Aircraft: 369HM, 369D, 369HS, 369HE
Installation of SAFT type 1656 nickel-cadmium electrical storage battery.
Aircraft: 206B, 206A, 206L
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
| NSN | Standardized Name | FSC | DLA List Price (gov't catalog) | CAGE / Manufacturer |
|---|---|---|---|---|
| 1680-00-928-8556 | STEM,MANIFOLD WELD | 1680 | $35.56/EA | 83533ESSEX INDUSTRIES INC DIV MANUFACTURING DIVISION |
| 2805-00-732-5185 | VALVE,POPPET,ENGINE | 2805 | $1.93/EA | 54509NAPASCO INTERNATIONAL INC |
| 5310-00-208-9526 | NUT,PLAIN,HEXAGON | 5310 | — | 28265HERCULES 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
ESSEX INDUSTRIES INC DIV MANUFACTURING DIVISION
Source
DLA WebFLIS
ATA Chapter
25
Type
OEM