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 dual independent Canadian Marconi MCA771 Omega Navigation Systems and dual B&D Instruments 2504 true airspeed computers.
Aircraft: 727-100 Series, 727-200 Series
Replace existing Auxiliary Electric Standby Fuel Pump with PMA Products, Inc. P/N CA35328-800E Fuel Pump (1A10-S/N 27-1 through 27-2504(14v), 1A15-s/n 24-3642, 24-4000 through 24-4782, 24-4784 through 24-4803, 2A13-s/n 28-7690001 through 28-7990626, 28-8090001 and up(14v)
Aircraft: PA-23-235, PA-23-160, PA-23, PA-23-250 +11 more
Installation of dual Litton LTN 211 Omega Navigation System and a single B&D Instruments 2504 TAS computer.
Aircraft: DC-8-62
Installation of single Tracor7800 Omega/VLF navigation system and B&D Instruments 2504 true airspeed system.
Aircraft: 35, 35A (C-21A), 36, 36A
Installation of Tracor 7800 Omega Navigation System and B&D instruments 2504 TAS
Aircraft: B200
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-References4 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 |
|---|---|---|---|---|
| 5306-01-373-1634 | BOLT,MACHINE | 5306 | — | 07819BOCK ENGINEERED PRODUCTS INC |
| 5310-00-038-4407 | WASHER,FLAT | 5310 | — | 94861MALABAR |
| 5310-01-504-3781 | NUT CENTER L | 5310 | $1.68/EA | 3Y949TRAK INTERNATIONAL |
| 5310-01-524-3824 | WASHER,FLAT | 5310 | $6.23/EA | 0PJN9TYCO ELECTRONICS / NANONICS CONNECTORS |
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
BOCK ENGINEERED PRODUCTS INC
Source
DLA WebFLIS
ATA Chapter
20
Type
OEM