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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 Alternatives1 found
| PMA Part # | Manufacturer | Supplement | Approved | Source |
|---|---|---|---|---|
| 1-820 Stowage Unit No 5 | B/E Aerospace Inc, Flight Structures and Integration Group | 46 | 1994-08-18 | — |
Supplemental Type Certificates12 found
FAA-approved modifications that reference this part number
Short stack installation - Pratt & Whitney R-1830 or Wright R-1820 engines.
Aircraft: 18
Installation of Wright R-1820-71, -60, GR1820G-202A; 702C9GC1, 2, 3, 4; 704C9GC1, 2, 3, or 4 engines and Hamilton Standard 43D50 or 33D50 constant speed propeller or Wright R1820-97 engine and H.S. 23E50 propeller, 506 gallon fiberglass hopper, wing mounted oil cooler, and revised cargo compartment in accordance with Serv-Aero Engineering, Inc. FAA sealed Master Drawing List MDL 9700 "A", dated November 24, 1980, or later FAA approved revision. FAA Approved Serv-Aero Airplane Flight Manual No. 112680, dated November 26, 1980 is required with this modification. See continuation sheets. (S2R, S/N 2526R AND UP, S2R-R3S, S/N R3S-001 AND UP)
Aircraft: S-2R, S2R-R3S
One Only STC, SN 18949, N99131: Installation of Wright R-1820-G202A engines and Hamilton Standard propellers(23E50 Hub with 6353-18 blades).
Aircraft: DC-3C Series
Installation of Wright R-1820-71, -60; GR1820G-202A, 702C9GC1, 2, 3, 4, 704C9GC1, 2, 3, 4 engine and Hamilton Standard 43D50 or 33D50 constant speed propeller. (G-164C RESTRICTED CATEGORY)
Aircraft: G-164C
Approval to use 1,350 hp for takeoff with Wright R1820-56A, -66 and -72A engines and 1,300 hp, with Wright R-1820-56 and -72 engines with Hamilton Standard33D50/6511-12 and -12S propellers.
Aircraft: Lockheed 18
Wright R-1820-56A, -66, -72A engines, modified rudder spring mechanism and tab, elevator spring tab, retractable tail wheel assembly, stabilizer and tail-wheel, fairing-fuselage horizontal stabilizer tip, fairing installation - stabilizer intersection, modification Lodestar bat wing and flap seal.
Aircraft: Lockheed 18
Installation of Wright R-1820-71, -60, GR1820G-202A, 702C9GC1, 2, 3, 4, 704C9G1, 2, 3, 4 engines and and Hamilton Standard 43D50 or 33D50 constant speed propeller or Wright R1820-97 engine and Hamilton Standard 23E50 propeller. (S2R RESTRICTED CATEGORY)
Aircraft: S2R
Installation of Wright R-1820-76A engine with associated cowling and fuel system changes in order to effect civil certification of military surplus Model T-28A.
Aircraft: NA-260 (USAF T-28A)
Installation of Wright, R-1820-71, -60 GR1820G-202A; 702C9CC1, 2, 3, 4; 704C9GC1, 2, 3, 4 engines and Hamilton Standard 4D350 and 33D50 constant speed propeller. (S2R RESTRICTED CATEGORY)
Aircraft: S2R
Installation of Wright R-1820-40, -60, -71, -87 engine and Hamilton Standard 33D50 or 43D50 constant speed propeller. (S2R RESTRICTED CATEGORY)
Aircraft: S2R
Alternate fuel source installation in aircraft with approved fuel flow- meter and Wright R-1820 or C9 Series engines.
Aircraft: Super DC-3, DC-3 Series
DC3 exhaust collector ring with modified short stack and new carburetor heat muff assembly on Wright R-1820-56 engine.
Aircraft: Lockheed 18
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-References1 NSN — 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 |
|---|---|---|---|---|
| 5310-00-209-0788 | WASHER,LOCK | 5310 | $2.30/HD | 83311UNISON INDUSTRIES, LLC DBA UNISON INDUSTRIES 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
UNISON INDUSTRIES, LLC DBA UNISON INDUSTRIES INC
Source
DLA WebFLIS
ATA Chapter
20
Type
OEM