PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AN505C8R7Screw,machine

Aeronautical Standards Group Dept of Navy and Air Force · NSN 5305-00-286-3243 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-286-3243 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-286-3243. Primary manufacturer part number: AN505C8R7.
Features
  • Screw,machine — FSC 5305
  • Thread Length: 0.437 INCHES NOMINAL IN
  • Head Style: FLAT COUNTERSUNK
  • Head Diameter: 0.308 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
  • Thread Direction: RIGHT-HAND
  • Countersink Angle: 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
  • Screw Material: STEEL CORROSION RESISTING
  • Internal Drive Style: SLOT
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-286-3243, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Aeronautical Standards Group Dept of Navy and Air Force. Government technical data includes 15 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: Active.

Technical Specifications
ParameterValue
NSN5305-00-286-3243
Primary Part NumberAN505C8R7
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerAeronautical Standards Group Dept of Navy and Air Force
StatusACTIVE
Thread Length0.437 INCHES NOMINAL IN
Head StyleFLAT COUNTERSUNK
Head Diameter0.308 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Countersink Angle80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
Screw MaterialSTEEL CORROSION RESISTING
Internal Drive StyleSLOT
Thread Quantity Per Inch32
Minimum Tensile Strength35000 POUNDS PER SQUARE INCH LBS
Nominal Thread Diameter0.164 INCHES IN
Thread Class2A A
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Screw Material Document and ClassificationQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE
Screw Surface TreatmentPASSIVATE
Fastener Length0.437 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5305-00-764-0066 INTERCHANGEABLE
Screw,machine
Cross-Reference Index
Part NumberManufacturer
AN505C8R7 Aeronautical Standards Group Dept of Navy and Air Force (USA)
Related Parts
5305-00-764-0066INTERCHANGEABLE
SCREW,MACHINE

Frequently Asked Questions

What is NSN 5305-00-286-3243?

NSN 5305-00-286-3243 is a Screw,machine, manufactured by Aeronautical Standards Group Dept of Navy and Air Force, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-286-3243?

NSN 5305-00-286-3243 has 1 cross-referenced part number: AN505C8R7 (Aeronautical Standards Group Dept of Navy and Air Force).

What NSN replaces 5305-00-286-3243?

There is 1 known substitute for 5305-00-286-3243: 5305-00-764-0066. Verify interchangeability with system specifications before substitution.

What are the specifications of AN505C8R7?

Key specifications for AN505C8R7: Thread Length: 0.437 INCHES NOMINAL IN; Head Style: FLAT COUNTERSUNK; Head Diameter: 0.308 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN; Thread Direction: RIGHT-HAND. 15 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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