PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AN505B3-3Screw,machine

Aeronautical Standards Group Dept of Navy and Air Force · NSN 5305-00-271-3570 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-271-3570 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-271-3570. Primary manufacturer part number: AN505B3-3.
Features
  • Screw,machine — FSC 5305
  • Thread Quantity Per Inch: 48
  • Internal Drive Style: SLOT
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Thread Direction: RIGHT-HAND
  • Minimum Tensile Strength: 55000 POUNDS PER SQUARE INCH LBS
  • Countersink Angle: 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
  • Head Diameter: 0.175 INCHES MINIMUM AND 0.199 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-271-3570, 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 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-271-3570
Primary Part NumberAN505B3-3
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerAeronautical Standards Group Dept of Navy and Air Force
StatusACTIVE
Thread Quantity Per Inch48
Internal Drive StyleSLOT
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread DirectionRIGHT-HAND
Minimum Tensile Strength55000 POUNDS PER SQUARE INCH LBS
Countersink Angle80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
Head Diameter0.175 INCHES MINIMUM AND 0.199 INCHES MAXIMUM IN
Head StyleFLAT COUNTERSUNK
Nominal Thread Diameter0.099 INCHES IN
Screw MaterialCOPPER ALLOY
Thread Length0.146 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
Screw Material Document and ClassificationQQ-B-613 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-W-321 FED SPEC SINGLE MATERIAL RESPONSE
Fastener Length0.156 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
Thread Class2A A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
2520-00-039-58314361 INTERCHANGEABLE
Housing
Eaton Corp Transmission Div
5950-00-184-4823678-2390-00 INTERCHANGEABLE
Reactor
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
3455-00-243-217911880 INTERCHANGEABLE
Cutter,milling,woodruff Keyseat
Niagara Cutter Inc
5120-00-277-1594 INTERCHANGEABLE
Wrench,box
5120-00-357-5182 INTERCHANGEABLE
Adapter,mechanical Puller
6625-00-458-8578 INTERCHANGEABLE
Adapter,test
5310-00-787-8900F1004-006 INTERCHANGEABLE
Washer,spring Tension
Barnes Group Inc. Dba Associated Spring Div Associated Spring Bristol
5999-00-879-406911018012-1 INTERCHANGEABLE
Heat Sink,electrical-Electronic
Northrop Grumman Systems Corporation
4520-01-021-4951 INTERCHANGEABLE
Control Assembly,manual
5360-01-190-16328039 INTERCHANGEABLE
Spring
Hoffman/new Yorker Inc
Cross-Reference Index
Part NumberManufacturer
AN505B3-3 Aeronautical Standards Group Dept of Navy and Air Force (USA)
8039 Cessna Aircraft Co Arc Avionics Div (USA)
Related Parts
2520-00-039-5831INTERCHANGEABLE
HOUSING
4361
5950-00-184-4823INTERCHANGEABLE
REACTOR
678-2390-00
3455-00-243-2179INTERCHANGEABLE
CUTTER,MILLING,WOODRUFF KEYSEAT
11880
5120-00-277-1594INTERCHANGEABLE
WRENCH,BOX
5120-00-357-5182INTERCHANGEABLE
ADAPTER,MECHANICAL PULLER
6625-00-458-8578INTERCHANGEABLE
ADAPTER,TEST
5310-00-787-8900INTERCHANGEABLE
WASHER,SPRING TENSION
F1004-006
5999-00-879-4069INTERCHANGEABLE
HEAT SINK,ELECTRICAL-ELECTRONIC
11018012-1
4520-01-021-4951INTERCHANGEABLE
CONTROL ASSEMBLY,MANUAL
5360-01-190-1632INTERCHANGEABLE
SPRING
8039
2530-01-330-3285INTERCHANGEABLE
TANK,PRESSURE
8039
5985-01-349-1774INTERCHANGEABLE
COUPLER,DIRECT CURRENT BLOCKING

Frequently Asked Questions

What is NSN 5305-00-271-3570?

NSN 5305-00-271-3570 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 5305-00-271-3570?

NSN 5305-00-271-3570 has 2 cross-referenced part numbers: AN505B3-3 (Aeronautical Standards Group Dept of Navy and Air Force), 8039 (Cessna Aircraft Co Arc Avionics Div).

What NSN replaces 5305-00-271-3570?

There are 12 known substitutes for 5305-00-271-3570: 2520-00-039-5831, 5950-00-184-4823, 3455-00-243-2179 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AN505B3-3?

Key specifications for AN505B3-3: Thread Quantity Per Inch: 48; Internal Drive Style: SLOT; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Thread Direction: RIGHT-HAND. 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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