PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NAS1351C3-24Screw,cap,socket Head

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5305-00-146-0021 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-146-0021 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-146-0021. Primary manufacturer part number: NAS1351C3-24.
Features
  • Screw,cap,socket Head — FSC 5305
  • Material: STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OR STEEL COMP 384 OR STEEL COMP XM-7 OVERALL
  • Minimum Yield Strength: 30000 POUNDS PER SQUARE INCH LBS
  • Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Surface Treatment: PASSIVATE OVERALL
  • Hardness Rating: 80.0 ROCKWELL B MINIMUM OVERALL
  • Nominal Thread Diameter: 0.190 INCHES IN
  • Thread Series Designator: UNRF
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 Comp Xm-7 Overall construction
General Description

The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-146-0021, 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 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-146-0021
Primary Part NumberNAS1351C3-24
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
MaterialSTEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OR STEEL COMP 384 OR STEEL COMP XM-7 OVERALL
Minimum Yield Strength30000 POUNDS PER SQUARE INCH LBS
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Surface TreatmentPASSIVATE OVERALL
Hardness Rating80.0 ROCKWELL B MINIMUM OVERALL
Nominal Thread Diameter0.190 INCHES IN
Thread Series DesignatorUNRF
Minimum Tensile Strength80000 POUNDS PER SQUARE INCH LBS
Head Diameter0.303 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
Head Height0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
Material Document and Classification66 FED STD 1ST MATERIAL RESPONSE OR 66 FED STD 2ND MATERIAL RESPONSE OR 66 FED STD 3RD MATERIAL RESPONSE OR 66 FED STD 4TH MATERIAL RESPONSE OR 66 FED STD 5TH MATERIAL RESPONSE OR ASTM A493 ASSN STD 6TH MATERIAL RESPONSE OVERALL
Specification/standard Data80205-NAS1351 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Thread Length0.875 INCHES MINIMUM IN
Fastener Length1.460 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
Head StylePAN NO. 2
Internal Drive StyleHEXAGON
Thread Quantity Per Inch32
Thread DirectionRIGHT-HAND
Width Across Flats0.156 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN
Thread Class3A A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
2590-00-382-895774285H INTERCHANGEABLE
Tank,oil,hydraulic System
Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
5305-01-672-7049NAS1351C3-24 INTERCHANGEABLE
Screw,cap,hexagon Head
Cbs Fasteners, Llc
Cross-Reference Index
Part NumberManufacturer
AOL4166-323 All Manufacturers, Inc. Dba Allied Harbor Aerospace Fasteners (USA)
10125000 Nimikkeistokeskus Ncb Finland (FIN)
AIC811-3-24 Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA)
73573-95-24C Sps Technologies, Llc Dba PB Fasteners (USA)
NAS1351C3-24 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
Related Parts
2590-00-382-8957INTERCHANGEABLE
TANK,OIL,HYDRAULIC SYSTEM
74285H
5305-01-672-7049INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
NAS1351C3-24

Frequently Asked Questions

What is NSN 5305-00-146-0021?

NSN 5305-00-146-0021 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 5305-00-146-0021?

NSN 5305-00-146-0021 has 5 cross-referenced part numbers: AOL4166-323 (All Manufacturers, Inc. Dba Allied Harbor Aerospace Fasteners), 10125000 (Nimikkeistokeskus Ncb Finland), AIC811-3-24 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 73573-95-24C (Sps Technologies, Llc Dba PB Fasteners), NAS1351C3-24 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use).

What NSN replaces 5305-00-146-0021?

There are 2 known substitutes for 5305-00-146-0021: 2590-00-382-8957, 5305-01-672-7049. Verify interchangeability with system specifications before substitution.

What are the specifications of NAS1351C3-24?

Key specifications for NAS1351C3-24: Material: STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OR STEEL COMP 384 OR STEEL COMP XM-7 OVERALL; Minimum Yield Strength: 30000 POUNDS PER SQUARE INCH LBS; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Surface Treatment: PASSIVATE OVERALL. 20 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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