PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS24621-45Screw,tapping

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5305-00-068-0522 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-068-0522 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-068-0522. Primary manufacturer part number: MS24621-45.
Features
  • Screw,tapping — FSC 5305
  • Internal Drive Style: CROSS RECESS TYPE 1
  • Features Provided: CASEHARDENED
  • Head Diameter: 0.357 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN
  • Head Height: 0.122 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN
  • Material: STEEL OVERALL
  • Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Fastener Length: 0.750 INCHES NOMINAL IN
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 5305-00-068-0522, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN5305-00-068-0522
Primary Part NumberMS24621-45
Item NameScrew,tapping
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Internal Drive StyleCROSS RECESS TYPE 1
Features ProvidedCASEHARDENED
Head Diameter0.357 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN
Head Height0.122 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Surface Treatment Document and ClassificationQQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Fastener Length0.750 INCHES NOMINAL IN
Head StylePAN
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Nonmachine Nominal Thread Diameter0.190 INCHES IN
Width Across Flats0.357 INCHES NOMINAL IN
Nonmachine Thread StyleDOG TYPE (TYPE B OR C)
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5305-00-432-4203 INTERCHANGEABLE
Screw,tapping
Cross-Reference Index
Part NumberManufacturer
MS24621-45 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5305-00-432-4203INTERCHANGEABLE
SCREW,TAPPING

Frequently Asked Questions

What is NSN 5305-00-068-0522?

NSN 5305-00-068-0522 is a Screw,tapping, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-068-0522?

NSN 5305-00-068-0522 has 1 cross-referenced part number: MS24621-45 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5305-00-068-0522?

There is 1 known substitute for 5305-00-068-0522: 5305-00-432-4203. Verify interchangeability with system specifications before substitution.

What are the specifications of MS24621-45?

Key specifications for MS24621-45: Internal Drive Style: CROSS RECESS TYPE 1; Features Provided: CASEHARDENED; Head Diameter: 0.357 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN; Head Height: 0.122 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-068-0522 still in active supply?

NSN 5305-00-068-0522 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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