PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NASM51861-72CScrew,tapping

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5305-00-476-7554 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-476-7554 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-476-7554. Primary manufacturer part number: NASM51861-72C.
Features
  • Screw,tapping — FSC 5305
  • Head Style: PAN
  • Fastener Length: 1.703 INCHES MINIMUM AND 1.797 INCHES MAXIMUM IN
  • Internal Drive Style: CROSS RECESS TYPE 1
  • Head Diameter: 0.473 INCHES MINIMUM AND 0.492 INCHES MAXIMUM IN
  • Material: STEEL COMP 410 OVERALL
  • Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
  • Surface Treatment: PASSIVATE OVERALL
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 5305-00-476-7554, 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 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-476-7554
Primary Part NumberNASM51861-72C
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 StylePAN
Fastener Length1.703 INCHES MINIMUM AND 1.797 INCHES MAXIMUM IN
Internal Drive StyleCROSS RECESS TYPE 1
Head Diameter0.473 INCHES MINIMUM AND 0.492 INCHES MAXIMUM IN
MaterialSTEEL COMP 410 OVERALL
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
Surface TreatmentPASSIVATE OVERALL
Nondefinitive Spec/std DataAB TYPE
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Nonmachine Thread StyleGIMLET POINT (TYPE A, AB OR BA)
Nonmachine Nominal Thread Diameter0.250 INCHES IN
Head Height0.162 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-00-014-3189 INTERCHANGEABLE
Screw,tapping
5305-00-017-2046 INTERCHANGEABLE
Screw,tapping
5305-00-081-6794161818 INTERCHANGEABLE
Screw,tapping
U S Army Tank Automotive Command Amsta-Im-Mm
5305-00-133-1985NASM51861-39C INTERCHANGEABLE
Screw,tapping
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-145-8368 INTERCHANGEABLE
Screw,tapping
5305-00-253-5616MS21318-22 INTERCHANGEABLE
Screw,drive
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-253-5630MS21318-54 INTERCHANGEABLE
Screw,drive
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-281-5993MD-2-421 INTERCHANGEABLE
Screw,tapping
Army, United States Department of the Dba Rock Island Arsenal Jmtc
5305-00-465-662689096-16J INTERCHANGEABLE
Screw Tapping
Trico Products Corporation
5305-00-638-1761 INTERCHANGEABLE
Screw,drive
Cross-Reference Index
Part NumberManufacturer
NASM51861-72C PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
FFS107 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
FF-S-107C Federal Specifications Promulgated by General Services Administration Washington DC (USA)
MS51861-72C Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5305-00-014-3189INTERCHANGEABLE
SCREW,TAPPING
5305-00-017-2046INTERCHANGEABLE
SCREW,TAPPING
5305-00-081-6794INTERCHANGEABLE
SCREW,TAPPING
161818
5305-00-133-1985INTERCHANGEABLE
SCREW,TAPPING
NASM51861-39C
5305-00-145-8368INTERCHANGEABLE
SCREW,TAPPING
5305-00-253-5616INTERCHANGEABLE
SCREW,DRIVE
MS21318-22
5305-00-253-5630INTERCHANGEABLE
SCREW,DRIVE
MS21318-54
5305-00-281-5993INTERCHANGEABLE
SCREW,TAPPING
MD-2-421
5305-00-465-6626INTERCHANGEABLE
SCREW TAPPING
89096-16J
5305-00-638-1761INTERCHANGEABLE
SCREW,DRIVE
5305-00-754-4355INTERCHANGEABLE
SCREW,TAPPING
127851
5305-00-883-0635INTERCHANGEABLE
SCREW,TAPPING

Frequently Asked Questions

What is NSN 5305-00-476-7554?

NSN 5305-00-476-7554 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 5305-00-476-7554?

NSN 5305-00-476-7554 has 4 cross-referenced part numbers: NASM51861-72C (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), FFS107 (Federal Specifications Promulgated by General Services Administration Washington DC), FF-S-107C (Federal Specifications Promulgated by General Services Administration Washington DC), MS51861-72C (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5305-00-476-7554?

There are 12 known substitutes for 5305-00-476-7554: 5305-00-014-3189, 5305-00-017-2046, 5305-00-081-6794 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NASM51861-72C?

Key specifications for NASM51861-72C: Head Style: PAN; Fastener Length: 1.703 INCHES MINIMUM AND 1.797 INCHES MAXIMUM IN; Internal Drive Style: CROSS RECESS TYPE 1; Head Diameter: 0.473 INCHES MINIMUM AND 0.492 INCHES MAXIMUM 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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