PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NASM51861-37Screw,tapping

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5305-00-926-5611 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-926-5611 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-926-5611. Primary manufacturer part number: NASM51861-37.
Features
  • Screw,tapping — FSC 5305
  • Surface Treatment: PASSIVATE OVERALL
  • Features Provided: CASEHARDENED
  • Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL
  • Nondefinitive Spec/std Data: B TYPE
  • Nonmachine Nominal Thread Diameter: 0.164 INCHES IN
  • Head Style: PAN
  • Internal Drive Style: CROSS RECESS TYPE 1
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 410 or Steel Comp 420 Overall construction
General Description

The Screw,tapping, cataloged under National Stock Number 5305-00-926-5611, 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-926-5611
Primary Part NumberNASM51861-37
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
Surface TreatmentPASSIVATE OVERALL
Features ProvidedCASEHARDENED
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES OVERALL
Nondefinitive Spec/std DataB TYPE
Nonmachine Nominal Thread Diameter0.164 INCHES IN
Head StylePAN
Internal Drive StyleCROSS RECESS TYPE 1
Head Height0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN
Fastener Length1.688 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
Nonmachine Thread StyleDOG TYPE (TYPE B OR C)
MaterialSTEEL COMP 410 OR STEEL COMP 420 OVERALL
Head Diameter0.306 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5305-00-432-41720139048 INTERCHANGEABLE
Screw,tapping
Fastenal Company
Cross-Reference Index
Part NumberManufacturer
MS51861-37 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
MS24622-37 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
NASM51861-37 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
5305009265611 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee
Related Parts
5305-00-432-4172INTERCHANGEABLE
SCREW,TAPPING
0139048

Frequently Asked Questions

What is NSN 5305-00-926-5611?

NSN 5305-00-926-5611 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 5305-00-926-5611?

NSN 5305-00-926-5611 has 4 cross-referenced part numbers: MS51861-37 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), MS24622-37 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), NASM51861-37 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), 5305009265611 (E.c.a Etablissement Centrald'approvisionnement Des Forces Armee).

What NSN replaces 5305-00-926-5611?

There is 1 known substitute for 5305-00-926-5611: 5305-00-432-4172. Verify interchangeability with system specifications before substitution.

What are the specifications of NASM51861-37?

Key specifications for NASM51861-37: Surface Treatment: PASSIVATE OVERALL; Features Provided: CASEHARDENED; Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL; Nondefinitive Spec/std Data: B TYPE. 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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