PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4TRetainer,electron Tube

Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp · NSN 5960-00-990-4094 · FSC 5960 · No Item Name Available
Verified by PartsTable
NSN 5960-00-990-4094 — this item is cataloged by the U.S. Government under National Stock Number 5960-00-990-4094. Primary manufacturer part number: 4T.
Features
  • Retainer,electron Tube — FSC 5960
  • Material: STEEL
  • Distance From Retainer Center to Centerline of Mounting Facility: 1.219 INCHES NOMINAL IN
  • Thread Class: 2A SINGLE MOUNTING FACILITY A
  • Overall Diameter: 1.750 INCHES NOMINAL IN
  • Surface Treatment: PASSIVATE
  • Thread Quantity Per Inch: 32 SINGLE MOUNTING FACILITY
  • Mounting Stud Length: 4.250 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel construction
General Description

The Retainer,electron Tube, cataloged under National Stock Number 5960-00-990-4094, is classified within Federal Supply Class 5960 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5960-00-990-4094
Primary Part Number4T
Item NameRetainer,electron Tube
FSC / FSG5960 / 59 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corp Dba Northrop Grumman Systems Corp
StatusACTIVE
MaterialSTEEL
Distance From Retainer Center to Centerline of Mounting Facility1.219 INCHES NOMINAL IN
Thread Class2A SINGLE MOUNTING FACILITY A
Overall Diameter1.750 INCHES NOMINAL IN
Surface TreatmentPASSIVATE
Thread Quantity Per Inch32 SINGLE MOUNTING FACILITY
Mounting Stud Length4.250 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Features ProvidedPOST LOCKING TAB
Mounting Facility Type and Quantity1 THREADED STUD(S) SINGLE MOUNTING FACILITY
Nominal Thread Size0.164 INCHES SINGLE MOUNTING FACILITY IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Eia Electron Tube Envelope AccommodatedST16
Style DesignatorPLAIN CAP HOLD DOWN W/ SCREW
Accommodated Item Securing Device TypeCOMPRESSION RING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3610-00-200-1341 INTERCHANGEABLE
Printing Press,proof
6520-00-935-72584T INTERCHANGEABLE
Plugger,amalgam,dental
Heraeus Kulzer Inc Dental Products Div
5120-01-313-4304 INTERCHANGEABLE
Retrieving Tool,magnetic
5133-01-413-364415104 INTERCHANGEABLE
Drill,multi-Step
Stanley Tools Div of Stanley Works
Cross-Reference Index
Part NumberManufacturer
4T PRIMARY Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp (USA)
Related Parts
3610-00-200-1341INTERCHANGEABLE
PRINTING PRESS,PROOF
6520-00-935-7258INTERCHANGEABLE
PLUGGER,AMALGAM,DENTAL
4T
5120-01-313-4304INTERCHANGEABLE
RETRIEVING TOOL,MAGNETIC
5133-01-413-3644INTERCHANGEABLE
DRILL,MULTI-STEP
15104

Frequently Asked Questions

What is NSN 5960-00-990-4094?

NSN 5960-00-990-4094 is a Retainer,electron Tube, manufactured by Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp, classified under FSC 5960 (No Item Name Available). Status: active.

What are the part numbers for NSN 5960-00-990-4094?

NSN 5960-00-990-4094 has 1 cross-referenced part number: 4T (Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp).

What NSN replaces 5960-00-990-4094?

There are 4 known substitutes for 5960-00-990-4094: 3610-00-200-1341, 6520-00-935-7258, 5120-01-313-4304 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4T?

Key specifications for 4T: Material: STEEL; Distance From Retainer Center to Centerline of Mounting Facility: 1.219 INCHES NOMINAL IN; Thread Class: 2A SINGLE MOUNTING FACILITY A; Overall Diameter: 1.750 INCHES NOMINAL IN. 16 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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