PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

191879Screw,machine

General Motors Llc Dba General Motors Llc · NSN 5305-00-019-1879 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-019-1879 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-019-1879. Primary manufacturer part number: 191879.
Features
  • Screw,machine — FSC 5305
  • Head Diameter: 0.473 INCHES MINIMUM AND 0.492 INCHES MAXIMUM IN
  • Head Style: PAN
  • Thread Direction: RIGHT-HAND
  • Fastener Length: 0.500 INCHES NOMINAL IN
  • Screw Material: STEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020
  • Thread Quantity Per Inch: 28
  • Thread Length: 0.500 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-019-1879, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is General Motors Llc Dba General Motors Llc. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-019-1879
Primary Part Number191879
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerGeneral Motors Llc Dba General Motors Llc
StatusACTIVE
Head Diameter0.473 INCHES MINIMUM AND 0.492 INCHES MAXIMUM IN
Head StylePAN
Thread DirectionRIGHT-HAND
Fastener Length0.500 INCHES NOMINAL IN
Screw MaterialSTEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020
Thread Quantity Per Inch28
Thread Length0.500 INCHES NOMINAL IN
Nominal Thread Diameter0.250 INCHES IN
Thread Series DesignatorUNF
Screw Surface TreatmentCADMIUM
Internal Drive StyleCROSS RECESS TYPE 1
Thread Class2A A
Nondefinitive Spec/std Data3 TYPE AND 9C STYLE
Head Height0.162 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN
Screw Material Document and ClassificationQQ-S-633 FED SPEC ALL MATERIAL RESPONSES
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5305-00-993-2463MS35207-279 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
191879 General Motors Llc Dba General Motors Llc (USA)
FFS92TYPE3STYLE9C Federal Specifications Promulgated by General Services Administration Washington DC (USA)
191879 General Motors Corp (USA)
Related Parts
5305-00-993-2463INTERCHANGEABLE
SCREW,MACHINE
MS35207-279

Frequently Asked Questions

What is NSN 5305-00-019-1879?

NSN 5305-00-019-1879 is a Screw,machine, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-019-1879?

NSN 5305-00-019-1879 has 3 cross-referenced part numbers: 191879 (General Motors Llc Dba General Motors Llc), FFS92TYPE3STYLE9C (Federal Specifications Promulgated by General Services Administration Washington DC), 191879 (General Motors Corp).

What NSN replaces 5305-00-019-1879?

There is 1 known substitute for 5305-00-019-1879: 5305-00-993-2463. Verify interchangeability with system specifications before substitution.

What are the specifications of 191879?

Key specifications for 191879: Head Diameter: 0.473 INCHES MINIMUM AND 0.492 INCHES MAXIMUM IN; Head Style: PAN; Thread Direction: RIGHT-HAND; Fastener Length: 0.500 INCHES NOMINAL IN. 15 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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