PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS51861-45Screw,tapping

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5305-01-295-0089 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-295-0089 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-295-0089. Primary manufacturer part number: MS51861-45.
Features
  • Screw,tapping — FSC 5305
  • Nonmachine Nominal Thread Diameter: 0.190 INCHES IN
  • Head Height: 0.122 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN
  • Head Style: PAN
  • Surface Treatment Document and Classification: ASTM B633 TY 2 CL FE/ZN 13 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
  • Material: STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1021 OR STEEL COMP 1022 OR STEEL COMP 1023 OR STEEL COMP 1524 OVERALL
  • Departure From Cited Document: AS DIFFERENTIATED BY SURFACE
  • Internal Drive Style: CROSS RECESS TYPE 1
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1016 or Steel Comp 1017 or Steel Comp 1018 or Steel Comp 1019 or Steel Comp 1020 or Steel Comp 1021 or Steel Comp 1022 or Steel Comp 1023 or Steel Comp 1524 Overall construction
General Description

The Screw,tapping, cataloged under National Stock Number 5305-01-295-0089, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 14 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-295-0089
Primary Part NumberMS51861-45
Item NameScrew,tapping
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusACTIVE
Nonmachine Nominal Thread Diameter0.190 INCHES IN
Head Height0.122 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN
Head StylePAN
Surface Treatment Document and ClassificationASTM B633 TY 2 CL FE/ZN 13 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
MaterialSTEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1021 OR STEEL COMP 1022 OR STEEL COMP 1023 OR STEEL COMP 1524 OVERALL
Departure From Cited DocumentAS DIFFERENTIATED BY SURFACE
Internal Drive StyleCROSS RECESS TYPE 1
Material Document and ClassificationAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Fastener Length0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
Head Diameter0.357 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN
Nonmachine Thread StyleGIMLET POINT (TYPE A, AB OR BA)
Surface TreatmentZINC AND CHROMATE OVERALL
Nondefinitive Spec/std DataAB TYPE
Features ProvidedCASEHARDENED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5305-00-432-4201 INTERCHANGEABLE
Screw,tapping
Cross-Reference Index
Part NumberManufacturer
MS51861-45 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS51861-45 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
Related Parts
5305-00-432-4201INTERCHANGEABLE
SCREW,TAPPING

Frequently Asked Questions

What is NSN 5305-01-295-0089?

NSN 5305-01-295-0089 is a Screw,tapping, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-295-0089?

NSN 5305-01-295-0089 has 2 cross-referenced part numbers: MS51861-45 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS51861-45 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use).

What NSN replaces 5305-01-295-0089?

There is 1 known substitute for 5305-01-295-0089: 5305-00-432-4201. Verify interchangeability with system specifications before substitution.

What are the specifications of MS51861-45?

Key specifications for MS51861-45: Nonmachine Nominal Thread Diameter: 0.190 INCHES IN; Head Height: 0.122 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN; Head Style: PAN; Surface Treatment Document and Classification: ASTM B633 TY 2 CL FE/ZN 13 ASSN STD SINGLE TREATMENT RESPONSE OVERALL. 14 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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