PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS51861-49Screw,tapping

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5305-00-432-4205 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-432-4205 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-432-4205. Primary manufacturer part number: MS51861-49.
Features
  • Screw,tapping — FSC 5305
  • Head Style: PAN
  • Nonmachine Nominal Thread Diameter: 0.190 INCHES IN
  • Internal Drive Style: CROSS RECESS TYPE 1
  • Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Head Diameter: 0.357 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN
  • Material: STEEL OVERALL
  • Surface Treatment: CADMIUM AND CHROMATE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Screw,tapping, cataloged under National Stock Number 5305-00-432-4205, 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 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-432-4205
Primary Part NumberMS51861-49
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
StatusCANCELLED
Head StylePAN
Nonmachine Nominal Thread Diameter0.190 INCHES IN
Internal Drive StyleCROSS RECESS TYPE 1
Surface Treatment Document and ClassificationQQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Head Diameter0.357 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Nondefinitive Spec/std DataAB TYPE
Fastener Length0.969 INCHES MINIMUM AND 1.031 INCHES MAXIMUM IN
Features ProvidedCASEHARDENED
Head Height0.122 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN
Nonmachine Thread StyleGIMLET POINT (TYPE A, AB OR BA)
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
5305-00-052-8241 INTERCHANGEABLE
Screw,tapping
5305-00-058-1082128270 INTERCHANGEABLE
Screw,tapping
Navistar Intl Corp Truck Br Ohio Plant
5305-00-067-9890 INTERCHANGEABLE
Screw,tapping
5305-00-579-5820 INTERCHANGEABLE
Screw,tapping
5133-00-596-7947 INTERCHANGEABLE
Drill,twist
5950-00-690-945042136 INTERCHANGEABLE
Transformer,power
Freed Transformer Co
5305-00-879-794180060 INTERCHANGEABLE
Screw,tapping
Hillman Group, Inc., the
5950-01-029-16973207670 INTERCHANGEABLE
Transformer,power
United States Department of the Navy Dba Naval Undersea Warfare Ctr Div
5305-01-146-2533MS51861-1C INTERCHANGEABLE
Screw,tapping
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-01-295-3026 INTERCHANGEABLE
Screw,tapping
Cross-Reference Index
Part NumberManufacturer
MS24621-47 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
42136 Federal Screw Products, Inc. (USA)
ST-648P Spaenaur Inc (CAN)
MS24617-35 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
NASM51861 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
MS51861-49 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
42136ADX Airdale Express Llc Div Airdale Express (USA)
AN530-10R16 Air Force-Navy Aeronautical Specifications Promulgated by Aeronautical Standards Group
MS51861-49 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
FFS107 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
5305PL0793027 Jednolity Indeks Materialowy - Uniform Material Index (POL)
Related Parts
5305-00-052-8241INTERCHANGEABLE
SCREW,TAPPING
5305-00-058-1082INTERCHANGEABLE
SCREW,TAPPING
128270
5305-00-067-9890INTERCHANGEABLE
SCREW,TAPPING
5305-00-579-5820INTERCHANGEABLE
SCREW,TAPPING
5133-00-596-7947INTERCHANGEABLE
DRILL,TWIST
5950-00-690-9450INTERCHANGEABLE
TRANSFORMER,POWER
42136
5305-00-879-7941INTERCHANGEABLE
SCREW,TAPPING
80060
5950-01-029-1697INTERCHANGEABLE
TRANSFORMER,POWER
3207670
5305-01-146-2533INTERCHANGEABLE
SCREW,TAPPING
MS51861-1C
5305-01-295-3026INTERCHANGEABLE
SCREW,TAPPING
5305-01-624-3950INTERCHANGEABLE
SCREW,TAPPING

Frequently Asked Questions

What is NSN 5305-00-432-4205?

NSN 5305-00-432-4205 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: cancelled.

What are the part numbers for NSN 5305-00-432-4205?

NSN 5305-00-432-4205 has 11 cross-referenced part numbers: MS24621-47 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 42136 (Federal Screw Products, Inc.), ST-648P (Spaenaur Inc), MS24617-35 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), NASM51861 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use) and 6 more.

What NSN replaces 5305-00-432-4205?

There are 11 known substitutes for 5305-00-432-4205: 5305-00-052-8241, 5305-00-058-1082, 5305-00-067-9890 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS51861-49?

Key specifications for MS51861-49: Head Style: PAN; Nonmachine Nominal Thread Diameter: 0.190 INCHES IN; Internal Drive Style: CROSS RECESS TYPE 1; Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-432-4205 still in active supply?

NSN 5305-00-432-4205 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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