PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS51861-47CScrew,tapping

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5305-00-477-0122 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-477-0122 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-477-0122. Primary manufacturer part number: MS51861-47C.
Features
  • Screw,tapping — FSC 5305
  • Head Style: PAN
  • Head Diameter: 0.357 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN
  • Material: STEEL COMP 410 OVERALL
  • Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Nondefinitive Spec/std Data: AB TYPE
  • Surface Treatment: PASSIVATE OVERALL
  • Internal Drive Style: CROSS RECESS TYPE 1
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 410 Overall construction
General Description

The Screw,tapping, cataloged under National Stock Number 5305-00-477-0122, 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 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-477-0122
Primary Part NumberMS51861-47C
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
Head Diameter0.357 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN
MaterialSTEEL COMP 410 OVERALL
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Nondefinitive Spec/std DataAB TYPE
Surface TreatmentPASSIVATE OVERALL
Internal Drive StyleCROSS RECESS TYPE 1
Fastener Length0.719 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
Nonmachine Nominal Thread Diameter0.190 INCHES IN
Nonmachine Thread StyleGIMLET POINT (TYPE A, AB OR BA)
Head Height0.122 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5999-00-857-0225173715 INTERCHANGEABLE
Contact,electrical
Telemechanics Inc
Cross-Reference Index
Part NumberManufacturer
10125328 Nimikkeistokeskus Ncb Finland (FIN)
MS51861-47C 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)
NAS51861-47C National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
MS51861-47C PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
Related Parts
5999-00-857-0225INTERCHANGEABLE
CONTACT,ELECTRICAL
173715

Frequently Asked Questions

What is NSN 5305-00-477-0122?

NSN 5305-00-477-0122 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 5305-00-477-0122?

NSN 5305-00-477-0122 has 5 cross-referenced part numbers: 10125328 (Nimikkeistokeskus Ncb Finland), MS51861-47C (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), NAS51861-47C (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), MS51861-47C (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use).

What NSN replaces 5305-00-477-0122?

There is 1 known substitute for 5305-00-477-0122: 5999-00-857-0225. Verify interchangeability with system specifications before substitution.

What are the specifications of MS51861-47C?

Key specifications for MS51861-47C: Head Style: PAN; Head Diameter: 0.357 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN; Material: STEEL COMP 410 OVERALL; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-477-0122 still in active supply?

NSN 5305-00-477-0122 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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