PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2N3478Screw,machine

Caterpillar Inc Div Caterpillar Defense · NSN 5305-01-098-3779 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-098-3779 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-098-3779. Primary manufacturer part number: 2N3478.
Features
  • Screw,machine — FSC 5305
  • Thread Class: 3A A
  • Head Diameter: 0.373 INCHES NOMINAL IN
  • Head Height: 0.110 INCHES NOMINAL IN
  • Internal Drive Style: SLOT
  • Nominal Thread Diameter: 0.190 INCHES IN
  • Fastener Length: 0.375 INCHES NOMINAL IN
  • Head Style: PAN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-01-098-3779, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 12 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-098-3779
Primary Part Number2N3478
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
Thread Class3A A
Head Diameter0.373 INCHES NOMINAL IN
Head Height0.110 INCHES NOMINAL IN
Internal Drive StyleSLOT
Nominal Thread Diameter0.190 INCHES IN
Fastener Length0.375 INCHES NOMINAL IN
Head StylePAN
Thread DirectionRIGHT-HAND
Screw MaterialSTEEL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread Quantity Per Inch24
Thread Length0.292 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5961-00-926-7294 INTERCHANGEABLE
Transistor
5961-00-927-2851 INTERCHANGEABLE
Transistor
Cross-Reference Index
Part NumberManufacturer
2N3478 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
Related Parts
5961-00-926-7294INTERCHANGEABLE
TRANSISTOR
5961-00-927-2851INTERCHANGEABLE
TRANSISTOR

Frequently Asked Questions

What is NSN 5305-01-098-3779?

NSN 5305-01-098-3779 is a Screw,machine, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-098-3779?

NSN 5305-01-098-3779 has 1 cross-referenced part number: 2N3478 (Caterpillar Inc Div Caterpillar Defense).

What NSN replaces 5305-01-098-3779?

There are 2 known substitutes for 5305-01-098-3779: 5961-00-926-7294, 5961-00-927-2851. Verify interchangeability with system specifications before substitution.

What are the specifications of 2N3478?

Key specifications for 2N3478: Thread Class: 3A A; Head Diameter: 0.373 INCHES NOMINAL IN; Head Height: 0.110 INCHES NOMINAL IN; Internal Drive Style: SLOT. 12 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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