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The ID plate on the G4088 turbopump shaft preload fixture assembly located on the LOX inlet closure; the G4088 prevents excessive vibration of the turbopump shaft during shipping.

The ID plate reads

Ground Support Equipment

Part Name: Fixture Assy. Preload - Turbopump Shaft
Part No.: G4088
Contract No.: NAS8-18734
Date of Mfg: [blank]
Stock No.: [blank]
Model No.: [blank]
Serial No.: F-1003
Spec No.: [blank]
Weight: [blank]
Insp: [inspection stamp]

Rocketdyne

A Division of North American Aviation, Inc.