PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AN505C4R7Screw,machine

Aeronautical Standards Group Dept of Navy and Air Force · NSN 5305-01-180-9348 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-180-9348 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-180-9348. Primary manufacturer part number: AN505C4R7.
Features
  • Screw,machine — FSC 5305
  • Screw Material Document and Classification: QQ-S-763,CL 4 FED SPEC SINGLE MATERIAL RESPONSE
  • Thread Direction: RIGHT-HAND
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Thread Length: 0.371 INCHES MINIMUM AND 0.383 INCHES MAXIMUM IN
  • Internal Drive Style: CROSS RECESS TYPE 1
  • Thread Quantity Per Inch: 40
  • Thread Class: 2A A
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-01-180-9348, 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 14 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
NSN5305-01-180-9348
Primary Part NumberAN505C4R7
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerAeronautical Standards Group Dept of Navy and Air Force
StatusACTIVE
Screw Material Document and ClassificationQQ-S-763,CL 4 FED SPEC SINGLE MATERIAL RESPONSE
Thread DirectionRIGHT-HAND
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread Length0.371 INCHES MINIMUM AND 0.383 INCHES MAXIMUM IN
Internal Drive StyleCROSS RECESS TYPE 1
Thread Quantity Per Inch40
Thread Class2A A
Screw Surface TreatmentPASSIVATE
Screw MaterialSTEEL CORROSION RESISTING
Fastener Length0.438 INCHES NOMINAL IN
Countersink Angle80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
Head Diameter0.207 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN
Head StyleFLAT COUNTERSUNK
Nominal Thread Diameter0.112 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5305-00-770-2580904386-21 INTERCHANGEABLE
Screw,machine
General Dynamics Land Systems - Canadacorporation Div General Dynamics Mission Systems
Cross-Reference Index
Part NumberManufacturer
AN505C4R7 Aeronautical Standards Group Dept of Navy and Air Force (USA)
Related Parts
5305-00-770-2580INTERCHANGEABLE
SCREW,MACHINE
904386-21

Frequently Asked Questions

What is NSN 5305-01-180-9348?

NSN 5305-01-180-9348 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 5305-01-180-9348?

NSN 5305-01-180-9348 has 1 cross-referenced part number: AN505C4R7 (Aeronautical Standards Group Dept of Navy and Air Force).

What NSN replaces 5305-01-180-9348?

There is 1 known substitute for 5305-01-180-9348: 5305-00-770-2580. Verify interchangeability with system specifications before substitution.

What are the specifications of AN505C4R7?

Key specifications for AN505C4R7: Screw Material Document and Classification: QQ-S-763,CL 4 FED SPEC SINGLE MATERIAL RESPONSE; Thread Direction: RIGHT-HAND; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Thread Length: 0.371 INCHES MINIMUM AND 0.383 INCHES MAXIMUM IN. 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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