PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

104263Screw,machine

L3harris Technologies, Inc. Dba Harris Corporation · NSN 5305-00-814-4857 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-814-4857 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-814-4857. Primary manufacturer part number: 104263.
Features
  • Screw,machine — FSC 5305
  • Head Style: FILLISTER
  • Minimum Tensile Strength: 55000 POUNDS PER SQUARE INCH LBS
  • Thread Length: 0.500 INCHES NOMINAL IN
  • Head Diameter: 0.313 INCHES NOMINAL IN
  • Screw Surface Treatment: CADMIUM
  • Thread Class: 2A A
  • Thread Series Designator: UNF
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-814-4857, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is L3harris Technologies, Inc. Dba Harris Corporation. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-814-4857
Primary Part Number104263
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerL3harris Technologies, Inc. Dba Harris Corporation
StatusACTIVE
Head StyleFILLISTER
Minimum Tensile Strength55000 POUNDS PER SQUARE INCH LBS
Thread Length0.500 INCHES NOMINAL IN
Head Diameter0.313 INCHES NOMINAL IN
Screw Surface TreatmentCADMIUM
Thread Class2A A
Thread Series DesignatorUNF
Thread Quantity Per Inch32
Nominal Thread Diameter0.190 INCHES IN
Internal Drive StyleSLOT
Fastener Length0.500 INCHES NOMINAL IN
Head Height0.130 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Screw MaterialCOPPER ALLOY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5315-00-797-0803104263 INTERCHANGEABLE
Pin,leg Pivot
Cadillac Gage Textron Inc.
5960-01-057-9186104263 INTERCHANGEABLE
Electron Tube
Triton Services Incorporated Dba Electron Technology Division Div Electron Technology Division
4320-01-412-2812104263 INTERCHANGEABLE
Ring,lantern
Sewart Supply, L.l.c.
Cross-Reference Index
Part NumberManufacturer
104263 Itt Industries Inc Itt Aerospace Communications Div East (USA)
104263 PRIMARY L3harris Technologies, Inc. Dba Harris Corporation (USA)
Related Parts
5315-00-797-0803INTERCHANGEABLE
PIN,LEG PIVOT
104263
5960-01-057-9186INTERCHANGEABLE
ELECTRON TUBE
104263
4320-01-412-2812INTERCHANGEABLE
RING,LANTERN
104263

Frequently Asked Questions

What is NSN 5305-00-814-4857?

NSN 5305-00-814-4857 is a Screw,machine, manufactured by L3harris Technologies, Inc. Dba Harris Corporation, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-814-4857?

NSN 5305-00-814-4857 has 2 cross-referenced part numbers: 104263 (Itt Industries Inc Itt Aerospace Communications Div East), 104263 (L3harris Technologies, Inc. Dba Harris Corporation).

What NSN replaces 5305-00-814-4857?

There are 3 known substitutes for 5305-00-814-4857: 5315-00-797-0803, 5960-01-057-9186, 4320-01-412-2812. Verify interchangeability with system specifications before substitution.

What are the specifications of 104263?

Key specifications for 104263: Head Style: FILLISTER; Minimum Tensile Strength: 55000 POUNDS PER SQUARE INCH LBS; Thread Length: 0.500 INCHES NOMINAL IN; Head Diameter: 0.313 INCHES NOMINAL IN. 14 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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