PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NAS1351C5-40Screw,cap,socket Head

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5305-01-038-4764 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-038-4764 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-038-4764. Primary manufacturer part number: NAS1351C5-40.
Features
  • Screw,cap,socket Head — FSC 5305
  • Minimum Tensile Strength: 80000 POUNDS PER SQUARE INCH LBS
  • Width Across Flats: 0.250 INCHES MINIMUM AND 0.253 INCHES MAXIMUM IN
  • Fastener Length: 2.460 INCHES MINIMUM AND 2.500 INCHES MAXIMUM IN
  • Thread Length: 1.125 INCHES MINIMUM IN
  • Internal Drive Style: HEXAGON
  • Head Style: FLAT CHAMFER
  • Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 302 or Steel Comp 304 or Steel Comp 305 or Steel Comp 316 or Steel Comp 384 or Steel Overall construction
General Description

The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-038-4764, 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 19 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-038-4764
Primary Part NumberNAS1351C5-40
Item NameScrew,cap,socket Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusACTIVE
Minimum Tensile Strength80000 POUNDS PER SQUARE INCH LBS
Width Across Flats0.250 INCHES MINIMUM AND 0.253 INCHES MAXIMUM IN
Fastener Length2.460 INCHES MINIMUM AND 2.500 INCHES MAXIMUM IN
Thread Length1.125 INCHES MINIMUM IN
Internal Drive StyleHEXAGON
Head StyleFLAT CHAMFER
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
MaterialSTEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OR STEEL COMP 384 OR STEEL OVERALL
Minimum Yield Strength30000 POUNDS PER SQUARE INCH LBS
Surface TreatmentPASSIVATE OVERALL
Hardness Rating80.0 ROCKWELL B MINIMUM OVERALL
Specification/standard Data80205-NAS1351 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Thread DirectionRIGHT-HAND
Thread Quantity Per Inch24
Head Diameter0.457 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN
Head Height0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
Nominal Thread Diameter0.312 INCHES IN
Thread Class3A A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
6150-00-296-2361410571 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Raytheon Company Dba Raytheon
5998-01-065-8620410571 INTERCHANGEABLE
Circuit Card Assembly
Telemechanics Inc
5310-01-368-7273410571 INTERCHANGEABLE
Washer,flat
Curtis Machine Company, Inc.
5340-01-511-0750410571 INTERCHANGEABLE
Lock,flush
Grah Safe & Lock Inc Div Grah Safe & Lock
Cross-Reference Index
Part NumberManufacturer
410571 Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump and Power Division (USA)
73573-5-38C Sps Technologies, Llc Dba PB Fasteners (USA)
965811-537C Raytheon Company Dba Raytheon (USA)
NAS1351C5-40 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
AOL4166-537 All Manufacturers, Inc. Dba Allied Harbor Aerospace Fasteners (USA)
AIC811-5-38 Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA)
Related Parts
6150-00-296-2361INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
410571
5998-01-065-8620INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
410571
5310-01-368-7273INTERCHANGEABLE
WASHER,FLAT
410571
5340-01-511-0750INTERCHANGEABLE
LOCK,FLUSH
410571

Frequently Asked Questions

What is NSN 5305-01-038-4764?

NSN 5305-01-038-4764 is a Screw,cap,socket Head, 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: active.

What are the part numbers for NSN 5305-01-038-4764?

NSN 5305-01-038-4764 has 6 cross-referenced part numbers: 410571 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump and Power Division), 73573-5-38C (Sps Technologies, Llc Dba PB Fasteners), 965811-537C (Raytheon Company Dba Raytheon), NAS1351C5-40 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), AOL4166-537 (All Manufacturers, Inc. Dba Allied Harbor Aerospace Fasteners) and 1 more.

What NSN replaces 5305-01-038-4764?

There are 4 known substitutes for 5305-01-038-4764: 6150-00-296-2361, 5998-01-065-8620, 5310-01-368-7273 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NAS1351C5-40?

Key specifications for NAS1351C5-40: Minimum Tensile Strength: 80000 POUNDS PER SQUARE INCH LBS; Width Across Flats: 0.250 INCHES MINIMUM AND 0.253 INCHES MAXIMUM IN; Fastener Length: 2.460 INCHES MINIMUM AND 2.500 INCHES MAXIMUM IN; Thread Length: 1.125 INCHES MINIMUM IN. 19 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com