PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FF-S-92Screw,machine

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5305-00-579-2097 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-579-2097 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-579-2097. Primary manufacturer part number: FF-S-92.
Features
  • Screw,machine — FSC 5305
  • Internal Drive Style: SLOT
  • Features Provided: SQUARE NUT
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Screw Material: STEEL
  • Countersink Angle: 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
  • Thread Length: 1.750 INCHES MINIMUM IN
  • Screw Material Document and Classification: QQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OR 66 FED STD SINGLE MATERIAL RESPONSE
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-579-2097, 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 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-579-2097
Primary Part NumberFF-S-92
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusACTIVE
Internal Drive StyleSLOT
Features ProvidedSQUARE NUT
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Screw MaterialSTEEL
Countersink Angle80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
Thread Length1.750 INCHES MINIMUM IN
Screw Material Document and ClassificationQQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OR 66 FED STD SINGLE MATERIAL RESPONSE
Minimum Tensile Strength60000 POUNDS PER SQUARE INCH LBS
Thread DirectionRIGHT-HAND
Thread Class2A A
Nominal Thread Diameter0.190 INCHES IN
Head Diameter0.333 INCHES MINIMUM AND 0.362 INCHES MAXIMUM IN
Head StyleFLAT COUNTERSUNK
Fastener Length4.000 INCHES NOMINAL IN
Thread Quantity Per Inch24
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-00-059-8256 INTERCHANGEABLE
Screw,machine
5305-00-206-3713 INTERCHANGEABLE
Screw,machine
5350-00-255-7736706 INTERCHANGEABLE
Wool,metallic
Palmer Engineered Products, Inc
5310-00-550-1598 INTERCHANGEABLE
Nut,plain,hexagon
5305-00-637-4506 INTERCHANGEABLE
Screw,machine
5305-00-950-4353 INTERCHANGEABLE
Screw,machine
5305-00-958-5247101139 INTERCHANGEABLE
Screw,machine
Hillman Group, Inc., the
5305-00-958-5250101146 INTERCHANGEABLE
Screw,machine
Hillman Group, Inc., the
5305-00-958-5471101077 INTERCHANGEABLE
Screw,machine
Hillman Group, Inc., the
5305-01-353-20896405224REVC INTERCHANGEABLE
Screw,machine
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
FF-S-92 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
FF-S-92 TY1ST2S General Services Administration Federal Supply Service (USA)
ASME-B18.6.3 The American Society of Mechanical Engineers (USA)
ANSI B18.6.3 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
Related Parts
5305-00-059-8256INTERCHANGEABLE
SCREW,MACHINE
5305-00-206-3713INTERCHANGEABLE
SCREW,MACHINE
5350-00-255-7736INTERCHANGEABLE
WOOL,METALLIC
706
5310-00-550-1598INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5305-00-637-4506INTERCHANGEABLE
SCREW,MACHINE
5305-00-950-4353INTERCHANGEABLE
SCREW,MACHINE
5305-00-958-5247INTERCHANGEABLE
SCREW,MACHINE
101139
5305-00-958-5250INTERCHANGEABLE
SCREW,MACHINE
101146
5305-00-958-5471INTERCHANGEABLE
SCREW,MACHINE
101077
5305-01-353-2089INTERCHANGEABLE
SCREW,MACHINE
6405224REVC
5305-01-562-7111INTERCHANGEABLE
SCREW,MACHINE
W/C8/0.375/KHA2MC/SF
5305-01-680-0667INTERCHANGEABLE
SCREW,MACHINE
AESC1F190750DG5M31

Frequently Asked Questions

What is NSN 5305-00-579-2097?

NSN 5305-00-579-2097 is a Screw,machine, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-579-2097?

NSN 5305-00-579-2097 has 4 cross-referenced part numbers: FF-S-92 (Federal Specifications Promulgated by General Services Administration Washington DC), FF-S-92 TY1ST2S (General Services Administration Federal Supply Service), ASME-B18.6.3 (The American Society of Mechanical Engineers), ANSI B18.6.3 (American National Standards Institute Incorporated Dba American National Standards Institute).

What NSN replaces 5305-00-579-2097?

There are 12 known substitutes for 5305-00-579-2097: 5305-00-059-8256, 5305-00-206-3713, 5350-00-255-7736 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FF-S-92?

Key specifications for FF-S-92: Internal Drive Style: SLOT; Features Provided: SQUARE NUT; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Screw Material: STEEL. 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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