PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ISO4762-M8X40-12.9Screw,cap,socket Head

International Organization for Standardization (iso) · NSN 5305-01-497-5206 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-497-5206 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-497-5206. Primary manufacturer part number: ISO4762-M8X40-12.9.
Features
  • Screw,cap,socket Head — FSC 5305
  • Thread Length: 28.0 MILLIMETERS NOMINAL MM
  • Head Style: FLAT CHAMFER
  • Internal Drive Style: HEXAGON
  • Thread Series Designator: M
  • Fastener Length: 40.0 MILLIMETERS NOMINAL MM
  • Nominal Thread Diameter: 8.0 MILLIMETERS MM
  • External Thread Tolerance Class: 6G G
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Property Class 12.9 Overall construction
General Description

The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-497-5206, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is International Organization for Standardization (iso). Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-497-5206
Primary Part NumberISO4762-M8X40-12.9
Item NameScrew,cap,socket Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerInternational Organization for Standardization (iso)
StatusACTIVE
Thread Length28.0 MILLIMETERS NOMINAL MM
Head StyleFLAT CHAMFER
Internal Drive StyleHEXAGON
Thread Series DesignatorM
Fastener Length40.0 MILLIMETERS NOMINAL MM
Nominal Thread Diameter8.0 MILLIMETERS MM
External Thread Tolerance Class6G G
Head Height8.0 MILLIMETERS NOMINAL MM
Width Across Flats6.0 MILLIMETERS NOMINAL MM
Thread DirectionRIGHT-HAND
Thread Pitch in Millimeters1.25
MaterialSTEEL PROPERTY CLASS 12.9 OVERALL
Head Diameter13.0 MILLIMETERS NOMINAL MM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5950-00-027-63592210214 INTERCHANGEABLE
Transformer,pulse
L3harris Technologies, Inc.
5310-00-045-883950FA540 INTERCHANGEABLE
Nut,self-Locking,hexagon
Sps Technologies, Llc Dba PB Fasteners
5330-00-152-540650163 INTERCHANGEABLE
Seal,plain Encased
Federal-Mogul Corp Government Sales Dept
5985-00-168-9455SMA571664-1 INTERCHANGEABLE
Coupler,directional
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4820-00-783-647772478 INTERCHANGEABLE
Cock,poppet Drain
Parker Hannifin Corp Dba Pneutronics
5930-01-332-261150163 INTERCHANGEABLE
Boot,dust and Moisture Seal
Multi-Flex Seals Inc
4470-01-466-0666 INTERCHANGEABLE
Inner Pipe,prsr
5330-01-685-699550163 INTERCHANGEABLE
Gasket
Hutchinson Industries, Inc Div Defense and Industry
Cross-Reference Index
Part NumberManufacturer
POG057859 Thales Uk Limited Dba Thales Uk Ltd Optronics (GBR)
50163 Eka Limited (GBR)
ISO4762-M8X40-12.9 PRIMARY International Organization for Standardization (iso) (CHE)
ISO4762-M8X40-12.9 Capital Screw and Nut Co (USA)
Related Parts
5950-00-027-6359INTERCHANGEABLE
TRANSFORMER,PULSE
2210214
5310-00-045-8839INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
50FA540
5330-00-152-5406INTERCHANGEABLE
SEAL,PLAIN ENCASED
50163
5985-00-168-9455INTERCHANGEABLE
COUPLER,DIRECTIONAL
SMA571664-1
4820-00-783-6477INTERCHANGEABLE
COCK,POPPET DRAIN
72478
5930-01-332-2611INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
50163
4470-01-466-0666INTERCHANGEABLE
INNER PIPE,PRSR
5330-01-685-6995INTERCHANGEABLE
GASKET
50163

Frequently Asked Questions

What is NSN 5305-01-497-5206?

NSN 5305-01-497-5206 is a Screw,cap,socket Head, manufactured by International Organization for Standardization (iso), classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-497-5206?

NSN 5305-01-497-5206 has 4 cross-referenced part numbers: POG057859 (Thales Uk Limited Dba Thales Uk Ltd Optronics), 50163 (Eka Limited), ISO4762-M8X40-12.9 (International Organization for Standardization (iso)), ISO4762-M8X40-12.9 (Capital Screw and Nut Co).

What NSN replaces 5305-01-497-5206?

There are 8 known substitutes for 5305-01-497-5206: 5950-00-027-6359, 5310-00-045-8839, 5330-00-152-5406 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ISO4762-M8X40-12.9?

Key specifications for ISO4762-M8X40-12.9: Thread Length: 28.0 MILLIMETERS NOMINAL MM; Head Style: FLAT CHAMFER; Internal Drive Style: HEXAGON; Thread Series Designator: M. 14 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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