PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

81348BCScrew,machine

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5305-00-059-8479 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-059-8479 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-059-8479. Primary manufacturer part number: 81348BC.
Features
  • Screw,machine — FSC 5305
  • Screw Surface Treatment: PASSIVATE
  • Thread Class: 2A A
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Fastener Length: 0.875 INCHES NOMINAL IN
  • Thread Direction: RIGHT-HAND
  • Thread Length: 0.875 INCHES NOMINAL IN
  • Nominal Thread Diameter: 0.164 INCHES IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-059-8479, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 14 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: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-059-8479
Primary Part Number81348BC
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusCANCELLED
Screw Surface TreatmentPASSIVATE
Thread Class2A A
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Fastener Length0.875 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Thread Length0.875 INCHES NOMINAL IN
Nominal Thread Diameter0.164 INCHES IN
Internal Drive StyleCROSS RECESS TYPE 1
Head Height0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN
Nondefinitive Spec/std Data3 TYPE AND 9C STYLE
Screw MaterialSTEEL CORROSION RESISTING
Head StylePAN
Head Diameter0.306 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
Thread Quantity Per Inch32
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5305-00-054-6673 INTERCHANGEABLE
Screw,machine
Cross-Reference Index
Part NumberManufacturer
81348BC Federal Specifications Promulgated by General Services Administration Washington DC (USA)
8844148-19 Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin (USA)
MS35216-45 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5305-00-054-6673INTERCHANGEABLE
SCREW,MACHINE

Frequently Asked Questions

What is NSN 5305-00-059-8479?

NSN 5305-00-059-8479 is a Screw,machine, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-059-8479?

NSN 5305-00-059-8479 has 3 cross-referenced part numbers: 81348BC (Federal Specifications Promulgated by General Services Administration Washington DC), 8844148-19 (Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin), MS35216-45 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5305-00-059-8479?

There is 1 known substitute for 5305-00-059-8479: 5305-00-054-6673. Verify interchangeability with system specifications before substitution.

What are the specifications of 81348BC?

Key specifications for 81348BC: Screw Surface Treatment: PASSIVATE; Thread Class: 2A A; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Fastener Length: 0.875 INCHES NOMINAL IN. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-059-8479 still in active supply?

NSN 5305-00-059-8479 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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