PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FF-S-92B TY I ST 4SScrew,machine

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5305-00-042-6887 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-042-6887 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-042-6887. Primary manufacturer part number: FF-S-92B TY I ST 4S.
Features
  • Screw,machine — FSC 5305
  • Fastener Length: 0.562 INCHES NOMINAL IN
  • Head Diameter: 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
  • Thread Quantity Per Inch: 32
  • Nominal Thread Diameter: 0.164 INCHES IN
  • Head Style: FILLISTER
  • Screw Material: STEEL CORROSION RESISTING
  • Internal Drive Style: CROSS RECESS TYPE 1
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-042-6887, 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 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-042-6887
Primary Part NumberFF-S-92B TY I ST 4S
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusACTIVE
Fastener Length0.562 INCHES NOMINAL IN
Head Diameter0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
Thread Quantity Per Inch32
Nominal Thread Diameter0.164 INCHES IN
Head StyleFILLISTER
Screw MaterialSTEEL CORROSION RESISTING
Internal Drive StyleCROSS RECESS TYPE 1
Thread DirectionRIGHT-HAND
Head Height0.102 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN
Thread Length0.500 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread Class2A A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5305-00-022-5376 INTERCHANGEABLE
Screw,machine
5305-00-104-9496NK500-8-24 INTERCHANGEABLE
Screw,cap,socket Head
Nylok Llc
5305-01-116-5413 INTERCHANGEABLE
Screw,machine
Cross-Reference Index
Part NumberManufacturer
FF-S-92B TY I ST 4S Federal Specifications Promulgated by General Services Administration Washington DC (USA)
426887 Army Weapons Command Attn Amswe-Ree-S (USA)
Related Parts
5305-00-022-5376INTERCHANGEABLE
SCREW,MACHINE
5305-00-104-9496INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
NK500-8-24
5305-01-116-5413INTERCHANGEABLE
SCREW,MACHINE

Frequently Asked Questions

What is NSN 5305-00-042-6887?

NSN 5305-00-042-6887 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 5305-00-042-6887?

NSN 5305-00-042-6887 has 2 cross-referenced part numbers: FF-S-92B TY I ST 4S (Federal Specifications Promulgated by General Services Administration Washington DC), 426887 (Army Weapons Command Attn Amswe-Ree-S).

What NSN replaces 5305-00-042-6887?

There are 3 known substitutes for 5305-00-042-6887: 5305-00-022-5376, 5305-00-104-9496, 5305-01-116-5413. Verify interchangeability with system specifications before substitution.

What are the specifications of FF-S-92B TY I ST 4S?

Key specifications for FF-S-92B TY I ST 4S: Fastener Length: 0.562 INCHES NOMINAL IN; Head Diameter: 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN; Thread Quantity Per Inch: 32; Nominal Thread Diameter: 0.164 INCHES IN. 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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