PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FF-S-92Screw,machine

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5305-01-110-1128 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-110-1128 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-110-1128. Primary manufacturer part number: FF-S-92.
Features
  • Screw,machine — FSC 5305
  • Screw Surface Treatment Document and Classification: MIL-C-13924 CLASS 4 MIL SPEC SINGLE TREATMENT RESPONSE
  • Fastener Length: 0.969 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN
  • Nominal Thread Diameter: 0.250 INCHES IN
  • Thread Quantity Per Inch: 20
  • Minimum Tensile Strength: 80000 POUNDS PER SQUARE INCH LBS
  • Head Height: 0.162 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-01-110-1128, 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 16 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
NSN5305-01-110-1128
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
Screw Surface Treatment Document and ClassificationMIL-C-13924 CLASS 4 MIL SPEC SINGLE TREATMENT RESPONSE
Fastener Length0.969 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN
Nominal Thread Diameter0.250 INCHES IN
Thread Quantity Per Inch20
Minimum Tensile Strength80000 POUNDS PER SQUARE INCH LBS
Head Height0.162 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Internal Drive StyleCROSS RECESS TYPE 1
Nondefinitive Spec/std Data3 TYPE AND 9C STYLE
Screw Surface TreatmentOXIDE
Thread DirectionRIGHT-HAND
Head Diameter0.473 INCHES MINIMUM AND 0.492 INCHES MAXIMUM IN
Thread Class2A A
Thread Length0.869 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN
Screw MaterialSTEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 302B OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 308 OR STEEL COMP 309 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP 314 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 348 OR STEEL COMP 384 OR STEEL COMP 385
Head StylePAN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5305-00-071-1318 INTERCHANGEABLE
Screw,machine
Cross-Reference Index
Part NumberManufacturer
FF-S-92 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
MS51957-83B Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS51957-83 Zf Industrieantriebe Witten Gmbh (DEU)
Related Parts
5305-00-071-1318INTERCHANGEABLE
SCREW,MACHINE

Frequently Asked Questions

What is NSN 5305-01-110-1128?

NSN 5305-01-110-1128 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 5305-01-110-1128?

NSN 5305-01-110-1128 has 3 cross-referenced part numbers: FF-S-92 (Federal Specifications Promulgated by General Services Administration Washington DC), MS51957-83B (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS51957-83 (Zf Industrieantriebe Witten Gmbh).

What NSN replaces 5305-01-110-1128?

There is 1 known substitute for 5305-01-110-1128: 5305-00-071-1318. Verify interchangeability with system specifications before substitution.

What are the specifications of FF-S-92?

Key specifications for FF-S-92: Screw Surface Treatment Document and Classification: MIL-C-13924 CLASS 4 MIL SPEC SINGLE TREATMENT RESPONSE; Fastener Length: 0.969 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.250 INCHES IN; Thread Quantity Per Inch: 20. 16 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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