PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NASM51861Screw,tapping

Aerospace Industries Association of America Inc · NSN 5305-00-052-8241 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-052-8241 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-052-8241. Primary manufacturer part number: NASM51861.
Features
  • Screw,tapping — FSC 5305
  • Surface Treatment Document and Classification: ASTM B633 ASSN STD ALL TREATMENT RESPONSES OVERALL
  • Head Height: 0.156 INCHES MINIMUM AND 0.169 INCHES MAXIMUM IN
  • Material: STEEL OVERALL
  • Surface Treatment: ZINC OVERALL
  • Head Style: PAN
  • Features Provided: CASEHARDENED
  • Nonmachine Thread Style: GIMLET POINT (TYPE A, AB OR BA)
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 5305-00-052-8241, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Aerospace Industries Association of America Inc. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-052-8241
Primary Part NumberNASM51861
Item NameScrew,tapping
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerAerospace Industries Association of America Inc
StatusCANCELLED
Surface Treatment Document and ClassificationASTM B633 ASSN STD ALL TREATMENT RESPONSES OVERALL
Head Height0.156 INCHES MINIMUM AND 0.169 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Surface TreatmentZINC OVERALL
Head StylePAN
Features ProvidedCASEHARDENED
Nonmachine Thread StyleGIMLET POINT (TYPE A, AB OR BA)
Fastener Length0.750 INCHES NOMINAL IN
Head Diameter0.457 INCHES MINIMUM AND 0.476 INCHES MAXIMUM IN
Internal Drive StyleCROSS RECESS TYPE 1
Nonmachine Nominal Thread Diameter0.242 INCHES IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5305-00-014-4810 INTERCHANGEABLE
Screw,tapping
5305-00-052-7500 INTERCHANGEABLE
Screw,tapping
5305-00-052-8238 INTERCHANGEABLE
Screw,tapping
5305-00-052-8240 INTERCHANGEABLE
Screw,tapping
5305-00-058-1082128270 INTERCHANGEABLE
Screw,tapping
Navistar Intl Corp Truck Br Ohio Plant
5930-00-195-41578010 INTERCHANGEABLE
Switch,code Indicating Wheel
Electro Switch Corp. Dba Electro Switch Corp Div Digitran a Unit of Electro Switch
5305-00-432-41720139048 INTERCHANGEABLE
Screw,tapping
Fastenal Company
5305-00-432-4205MS51861-49 INTERCHANGEABLE
Screw,tapping
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-637-452160054 INTERCHANGEABLE
Screw,tapping
Hillman Group, Inc., the
5305-00-637-4522 INTERCHANGEABLE
Screw,tapping
Cross-Reference Index
Part NumberManufacturer
NASM51861 Aerospace Industries Association of America Inc
80105 Hillman Group, Inc., the (USA)
MS24617-55 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
FF-S-107 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
ANSI B18.6.4 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
FF-S-107 TYAB General Services Administration Federal Supply Service (USA)
MS51861-67-3/4IN.X1/4IN. Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5305-00-014-4810INTERCHANGEABLE
SCREW,TAPPING
5305-00-052-7500INTERCHANGEABLE
SCREW,TAPPING
5305-00-052-8238INTERCHANGEABLE
SCREW,TAPPING
5305-00-052-8240INTERCHANGEABLE
SCREW,TAPPING
5305-00-058-1082INTERCHANGEABLE
SCREW,TAPPING
128270
5930-00-195-4157INTERCHANGEABLE
SWITCH,CODE INDICATING WHEEL
8010
5305-00-432-4172INTERCHANGEABLE
SCREW,TAPPING
0139048
5305-00-432-4205INTERCHANGEABLE
SCREW,TAPPING
MS51861-49
5305-00-637-4521INTERCHANGEABLE
SCREW,TAPPING
60054
5305-00-637-4522INTERCHANGEABLE
SCREW,TAPPING
5930-00-740-7006INTERCHANGEABLE
SWITCH,TOGGLE
80105
5305-00-879-7941INTERCHANGEABLE
SCREW,TAPPING
80060

Frequently Asked Questions

What is NSN 5305-00-052-8241?

NSN 5305-00-052-8241 is a Screw,tapping, manufactured by Aerospace Industries Association of America Inc, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-052-8241?

NSN 5305-00-052-8241 has 7 cross-referenced part numbers: NASM51861 (Aerospace Industries Association of America Inc), 80105 (Hillman Group, Inc., the), MS24617-55 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), FF-S-107 (Federal Specifications Promulgated by General Services Administration Washington DC), ANSI B18.6.4 (American National Standards Institute Incorporated Dba American National Standards Institute) and 2 more.

What NSN replaces 5305-00-052-8241?

There are 12 known substitutes for 5305-00-052-8241: 5305-00-014-4810, 5305-00-052-7500, 5305-00-052-8238 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NASM51861?

Key specifications for NASM51861: Surface Treatment Document and Classification: ASTM B633 ASSN STD ALL TREATMENT RESPONSES OVERALL; Head Height: 0.156 INCHES MINIMUM AND 0.169 INCHES MAXIMUM IN; Material: STEEL OVERALL; Surface Treatment: ZINC OVERALL. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-052-8241 still in active supply?

NSN 5305-00-052-8241 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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