PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40496Screw,machine

Fastenal Company Dba Fastenal Co · NSN 5305-01-621-1039 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-621-1039 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-621-1039. Primary manufacturer part number: 40496.
Features
  • Screw,machine — FSC 5305
  • Screw Surface Treatment: ZINC
  • Thread Direction: LEFT-HAND
  • Thread Series Designator: M
  • Head Surface Treatment: ZINC
  • Nominal Thread Diameter: 8.000 MILLIMETERS MM
  • Screw Material: STEEL
  • Thread Pitch in Millimeters: 1.300
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-01-621-1039, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Fastenal Company Dba Fastenal Co. Government technical data includes 8 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-621-1039
Primary Part Number40496
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerFastenal Company Dba Fastenal Co
StatusACTIVE
Screw Surface TreatmentZINC
Thread DirectionLEFT-HAND
Thread Series DesignatorM
Head Surface TreatmentZINC
Nominal Thread Diameter8.000 MILLIMETERS MM
Screw MaterialSTEEL
Thread Pitch in Millimeters1.300
Thread Length16.000 MILLIMETERS NOMINAL MM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
6610-00-076-251040496 INTERCHANGEABLE
Bank,scale
Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems
5950-01-067-7390 INTERCHANGEABLE
Reactor
Cross-Reference Index
Part NumberManufacturer
40496 PRIMARY Fastenal Company Dba Fastenal Co (USA)
Related Parts
6610-00-076-2510INTERCHANGEABLE
BANK,SCALE
40496
5950-01-067-7390INTERCHANGEABLE
REACTOR

Frequently Asked Questions

What is NSN 5305-01-621-1039?

NSN 5305-01-621-1039 is a Screw,machine, manufactured by Fastenal Company Dba Fastenal Co, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-621-1039?

NSN 5305-01-621-1039 has 1 cross-referenced part number: 40496 (Fastenal Company Dba Fastenal Co).

What NSN replaces 5305-01-621-1039?

There are 2 known substitutes for 5305-01-621-1039: 6610-00-076-2510, 5950-01-067-7390. Verify interchangeability with system specifications before substitution.

What are the specifications of 40496?

Key specifications for 40496: Part Name Assigned by Controlling Agency: SLOTTED CHEESE HEAD MAC; Screw Surface Treatment: ZINC; Thread Direction: LEFT-HAND; Special Features: SCREW HAS SLOTTED HEAD. 10 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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