Forward Support Battalion
Front Side Bus
Federation of Small Businesses
Forward Support Battalions
Financial Systems Branch
Fleet Satellite Broadcast
forward support base
Fire Support Base
Fortune Small Business
Forward Staging Base
Fasten Seat Belt
Fasten Seat Belts
Feature State Block
Federal Savings Bank
Federal Security Bureau
Federal Security Service
Federal Specifications Board
Federalnaja Sluzhba Bezopasnosti
Federal'naya Sluzhba Bezopasnosti
Federation of Small Business
fetal scalp blood
Fibrin Split Product
Field Selection Board
final staging base
Financial Security Assurance Holdings…
Fire Support Battery
Flat Slip on Bottom
Flight Software Branch
Flight Standardization Board
Flight Standards Board