PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS51862-26Screw,tapping

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5305-00-052-9971 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-052-9971 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-052-9971. Primary manufacturer part number: MS51862-26.
Features
  • Screw,tapping — FSC 5305
  • Head Style: FLAT COUNTERSUNK UNDERCUT
  • Fastener Length: 0.719 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
  • Head Height: 0.058 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
  • Material: STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1021 OR STEEL COMP 1022 OR STEEL COMP 1524 OVERALL
  • Features Provided: CASEHARDENED
  • Surface Treatment: CADMIUM AND CHROMATE OVERALL
  • Countersink Angle: 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1016 or Steel Comp 1018 or Steel Comp 1019 or Steel Comp 1021 or Steel Comp 1022 or Steel Comp 1524 Overall construction
General Description

The Screw,tapping, cataloged under National Stock Number 5305-00-052-9971, 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 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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
NSN5305-00-052-9971
Primary Part NumberMS51862-26
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
Head StyleFLAT COUNTERSUNK UNDERCUT
Fastener Length0.719 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
Head Height0.058 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
MaterialSTEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1021 OR STEEL COMP 1022 OR STEEL COMP 1524 OVERALL
Features ProvidedCASEHARDENED
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Countersink Angle80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
Surface Treatment Document and ClassificationQQ-P-416 TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
Material Document and ClassificationAISI ASSN STD ALL MATERIAL RESPONSES OVERALL
Head Diameter0.292 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
Nonmachine Nominal Thread Diameter0.164 INCHES IN
Nonmachine Thread StyleDOG TYPE (TYPE B OR C)
Internal Drive StyleCROSS RECESS TYPE 1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5305-00-483-0554 INTERCHANGEABLE
Screw,tapping
Cross-Reference Index
Part NumberManufacturer
MS24619-25 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS24619-25 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
MS51862-26 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
Related Parts
5305-00-483-0554INTERCHANGEABLE
SCREW,TAPPING

Frequently Asked Questions

What is NSN 5305-00-052-9971?

NSN 5305-00-052-9971 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 5305-00-052-9971?

NSN 5305-00-052-9971 has 3 cross-referenced part numbers: MS24619-25 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS24619-25 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), MS51862-26 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use).

What NSN replaces 5305-00-052-9971?

There is 1 known substitute for 5305-00-052-9971: 5305-00-483-0554. Verify interchangeability with system specifications before substitution.

What are the specifications of MS51862-26?

Key specifications for MS51862-26: Head Style: FLAT COUNTERSUNK UNDERCUT; Fastener Length: 0.719 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN; Head Height: 0.058 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN; Material: STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1021 OR STEEL COMP 1022 OR STEEL COMP 1524 OVERALL. 13 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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