PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

66570Screw,machine

L3harris Technologies, Inc. Dba Harris Corporation · NSN 5305-00-206-0541 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-206-0541 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-206-0541. Primary manufacturer part number: 66570.
Features
  • Screw,machine — FSC 5305
  • Thread Quantity Per Inch: 40
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Screw Surface Treatment Document and Classification: QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE
  • Head Style: ROUND
  • Thread Direction: RIGHT-HAND
  • Screw Material: STEEL OR STEEL COMP 1010
  • Screw Material Document and Classification: QQ-S-630 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-631 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-634 FED SPEC 2ND MATERIAL RESPONSE
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-206-0541, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is L3harris Technologies, Inc. Dba Harris Corporation. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-206-0541
Primary Part Number66570
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerL3harris Technologies, Inc. Dba Harris Corporation
StatusCANCELLED
Thread Quantity Per Inch40
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Screw Surface Treatment Document and ClassificationQQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE
Head StyleROUND
Thread DirectionRIGHT-HAND
Screw MaterialSTEEL OR STEEL COMP 1010
Screw Material Document and ClassificationQQ-S-630 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-631 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-634 FED SPEC 2ND MATERIAL RESPONSE
Fastener Length0.281 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
Thread Length0.262 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
Head Diameter0.193 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN
Screw Surface TreatmentCADMIUM
Nominal Thread Diameter0.112 INCHES IN
Thread Class2A A
Internal Drive StyleCROSS RECESS TYPE 1
Minimum Tensile Strength55000 POUNDS PER SQUARE INCH LBS
Head Height0.086 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5305-00-141-5164 INTERCHANGEABLE
Screw,machine
5305-00-151-0172 INTERCHANGEABLE
Screw,machine
5305-00-151-0259 INTERCHANGEABLE
Screw,machine
5305-00-151-0265 INTERCHANGEABLE
Screw,machine
5305-00-151-0470 INTERCHANGEABLE
Screw,machine
5305-00-151-0472 INTERCHANGEABLE
Screw,machine
5305-00-151-1376 INTERCHANGEABLE
Screw,machine
5305-00-151-1568 INTERCHANGEABLE
Screw,machine
5305-00-151-3576 INTERCHANGEABLE
Screw,machine
5305-00-151-3578 INTERCHANGEABLE
Screw,machine
Cross-Reference Index
Part NumberManufacturer
66570 L3harris Technologies, Inc. Dba Harris Corporation (USA)
FFS92ANDTYPE1ANDSTYLE1 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
66570 Itt Industries Inc Itt Aerospace Communications Div East (USA)
80248E Honeywell International Inc. Dba Honeywell International Div Aerospace-Minneapolis (USA)
AN515-4-5 Aeronautical Standards Group Dept of Navy and Air Force (USA)
AN515-4-5 Drallim Industries Ltd Div Cargo Aids Divison (GBR)
Related Parts
5305-00-141-5164INTERCHANGEABLE
SCREW,MACHINE
5305-00-151-0172INTERCHANGEABLE
SCREW,MACHINE
5305-00-151-0259INTERCHANGEABLE
SCREW,MACHINE
5305-00-151-0265INTERCHANGEABLE
SCREW,MACHINE
5305-00-151-0470INTERCHANGEABLE
SCREW,MACHINE
5305-00-151-0472INTERCHANGEABLE
SCREW,MACHINE
5305-00-151-1376INTERCHANGEABLE
SCREW,MACHINE
5305-00-151-1568INTERCHANGEABLE
SCREW,MACHINE
5305-00-151-3576INTERCHANGEABLE
SCREW,MACHINE
5305-00-151-3578INTERCHANGEABLE
SCREW,MACHINE
5305-00-151-3757INTERCHANGEABLE
SCREW,MACHINE
5305-00-151-3776INTERCHANGEABLE
SCREW,MACHINE

Frequently Asked Questions

What is NSN 5305-00-206-0541?

NSN 5305-00-206-0541 is a Screw,machine, manufactured by L3harris Technologies, Inc. Dba Harris Corporation, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-206-0541?

NSN 5305-00-206-0541 has 6 cross-referenced part numbers: 66570 (L3harris Technologies, Inc. Dba Harris Corporation), FFS92ANDTYPE1ANDSTYLE1 (Federal Specifications Promulgated by General Services Administration Washington DC), 66570 (Itt Industries Inc Itt Aerospace Communications Div East), 80248E (Honeywell International Inc. Dba Honeywell International Div Aerospace-Minneapolis), AN515-4-5 (Aeronautical Standards Group Dept of Navy and Air Force) and 1 more.

What NSN replaces 5305-00-206-0541?

There are 12 known substitutes for 5305-00-206-0541: 5305-00-141-5164, 5305-00-151-0172, 5305-00-151-0259 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 66570?

Key specifications for 66570: Thread Quantity Per Inch: 40; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Screw Surface Treatment Document and Classification: QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE; Head Style: ROUND. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-206-0541 still in active supply?

NSN 5305-00-206-0541 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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