PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NAS1081-3A8PSetscrew

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5305-01-057-0866 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-057-0866 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-057-0866. Primary manufacturer part number: NAS1081-3A8P.
Features
  • Setscrew — FSC 5305
  • Thread Quantity Per Inch: 32
  • Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF)
  • Width Across Flats: 0.094 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
  • Specification/standard Data: 80205-NAS1081 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Nominal Thread Diameter: 0.190 INCHES IN
  • Material: STEEL OVERALL
  • Internal Drive Style: HEXAGON
Applications
  • Applications requiring Steel Overall construction
General Description

The Setscrew, cataloged under National Stock Number 5305-01-057-0866, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 17 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-01-057-0866
Primary Part NumberNAS1081-3A8P
Item NameSetscrew
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusCANCELLED
Thread Quantity Per Inch32
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF)
Width Across Flats0.094 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
Specification/standard Data80205-NAS1081 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Nominal Thread Diameter0.190 INCHES IN
MaterialSTEEL OVERALL
Internal Drive StyleHEXAGON
Hardness Rating45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
Surface Treatment Document and ClassificationQQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Point StyleFLAT
Locking FeaturePATCH THREADS
Thread Class3A A
Fastener Length0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
Thread Length0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
Head StyleHEADLESS (SETSCREW)
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
5305-00-022-3088FF-S-200B INTERCHANGEABLE
Setscrew
Defense Logistics Agency Dba Defense Supply Center Philadelphia
5305-00-043-2393 INTERCHANGEABLE
Setscrew
5305-00-297-2935 INTERCHANGEABLE
Setscrew
5305-00-375-7417R126PCSP37 INTERCHANGEABLE
Setscrew
Circor Naval Solutions Llc Dba Warren Pumps
5305-00-395-4184 INTERCHANGEABLE
Setscrew
5305-00-436-7127 INTERCHANGEABLE
Setscrew
5305-00-702-4532NASM51981-74 INTERCHANGEABLE
Setscrew
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-724-7276NASM51966 INTERCHANGEABLE
Setscrew
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-823-5719 INTERCHANGEABLE
Setscrew
5305-01-015-6631 INTERCHANGEABLE
Setscrew
Cross-Reference Index
Part NumberManufacturer
FF-S-200B Federal Specifications Promulgated by General Services Administration Washington DC (USA)
NAS1081-3A8P PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
Related Parts
5305-00-022-3088INTERCHANGEABLE
SETSCREW
FF-S-200B
5305-00-043-2393INTERCHANGEABLE
SETSCREW
5305-00-297-2935INTERCHANGEABLE
SETSCREW
5305-00-375-7417INTERCHANGEABLE
SETSCREW
R126PCSP37
5305-00-395-4184INTERCHANGEABLE
SETSCREW
5305-00-436-7127INTERCHANGEABLE
SETSCREW
5305-00-702-4532INTERCHANGEABLE
SETSCREW
NASM51981-74
5305-00-724-7276INTERCHANGEABLE
SETSCREW
NASM51966
5305-00-823-5719INTERCHANGEABLE
SETSCREW
5305-01-015-6631INTERCHANGEABLE
SETSCREW

Frequently Asked Questions

What is NSN 5305-01-057-0866?

NSN 5305-01-057-0866 is a Setscrew, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-01-057-0866?

NSN 5305-01-057-0866 has 2 cross-referenced part numbers: FF-S-200B (Federal Specifications Promulgated by General Services Administration Washington DC), NAS1081-3A8P (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use).

What NSN replaces 5305-01-057-0866?

There are 10 known substitutes for 5305-01-057-0866: 5305-00-022-3088, 5305-00-043-2393, 5305-00-297-2935 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NAS1081-3A8P?

Key specifications for NAS1081-3A8P: Thread Quantity Per Inch: 32; Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF); Width Across Flats: 0.094 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN; Specification/standard Data: 80205-NAS1081 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-01-057-0866 still in active supply?

NSN 5305-01-057-0866 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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