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Documentation
General information based on part classification, not a certification determination. Your operator's quality manual governs.
Life-Limited Part — Confirm Retirement Limits Before Purchase
ATA 72 components may be subject to mandatory retirement limits. Consult the aircraft maintenance manual to confirm life limits. An unbroken chain of 8130-3 tags and/or maintenance records from new is required for airworthy installation.
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 Certificates14 found
FAA-approved modifications that reference this part number
Fabrication of Simplex Model 7900 spray booms and tank
Aircraft: 206L, 206L-1, 206L-3, 206L-4
Installation of a dual Tracor TA 7900 VLF/OMEGA.
Aircraft: 727-200 Series
Installation of TNL 7900 OMEGA/VLF Navigation System.
Aircraft: DC-9-82 (MD-82), DC-9-83 (MD-83), DC-9-87 (MD-87)
Install dual Tracor 7900 Omega Navigation System and dual B and D true airspeed computers.
Aircraft: DC-8-71, DC-8-71F, DC-8-72, DC-8-72F
Installation of a dual Trimble Model TNL-7900 Omega/VLF/GPS Navigation System.
Aircraft: DC-8 Series
Installation of dual Trimble Model TNL 7900 Omega/VLF/GPS navigation system.
Aircraft: 727-200 Series
Installation of dual independent Tracor 7900 Omega Navigation System with a Xetek Intl'l 103002-0001 accessory switching unit.
Aircraft: DC-8-61, DC-8-61F, DC-8-62, DC-8-62F +6 more
Installation of a Dual Tracor 7900 Omega Navigation System.
Aircraft: 707-300 Series
Installation of dual Tracor TA-7900 Omega/DME-DME navigation systems.
Aircraft: DC-9-83 (MD-83), DC-9-87 (MD-87)
Installation of a single TA-7900 Omega/DME-DME navigation system with dual control display units.
Aircraft: DC-9-81 (MD-81), DC-9-82 (MD-82)
Installation of dual independent Tracor 7900 Omega Navigation System with a Xetek Int'l103002-0001 accessory switching unit.
Aircraft: DC-8-53, DC-8F-55, DC-8-55, DC-8-51 +2 more
Installation of a Tracor TA 7900 Omega/VLF.
Aircraft: DC-8-62
Installation of dual Tracor 7900 omega navigation systems. (727-231)
Aircraft: 727
Installation of Tracor TA 7900 Omega/VLF navigation system.
Aircraft: 421C
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 |
|---|---|---|---|---|
| 2825-00-446-9237 | SPINDLE ASSEMBLY | 2825 | $552.92/AY | 79500WESTINGHOUSE ELECTRIC CORP |
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
WESTINGHOUSE ELECTRIC CORP
Source
DLA WebFLIS
ATA Chapter
72
Type
OEM