PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NAS1100C3-18Screw,machine

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5305-00-804-0526 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-804-0526 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-804-0526. Primary manufacturer part number: NAS1100C3-18.
Features
  • Screw,machine — FSC 5305
  • Thread Direction: RIGHT-HAND
  • Screw Material: IRON ALLOY 660
  • Fastener Length: 1.125 INCHES NOMINAL IN
  • Thread Class: 3A A
  • Head Height: 0.122 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN
  • Internal Drive Style: TORQUE SET
  • Head Diameter: 0.357 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-804-0526, 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 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-804-0526
Primary Part NumberNAS1100C3-18
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusACTIVE
Thread DirectionRIGHT-HAND
Screw MaterialIRON ALLOY 660
Fastener Length1.125 INCHES NOMINAL IN
Thread Class3A A
Head Height0.122 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN
Internal Drive StyleTORQUE SET
Head Diameter0.357 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN
Head StylePAN
Thread Quantity Per Inch32
Screw Material Document and ClassificationAMS 5735 ASSN STD SINGLE MATERIAL RESPONSE
Nominal Thread Diameter0.190 INCHES IN
Hardness Rating248.0 BRINELL STANDARD MINIMUM AND 321.0 BRINELL STANDARD MAXIMUM
Thread Series DesignatorUNF
Screw Surface Treatment Document and ClassificationMIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE
Minimum Tensile Strength140000 POUNDS PER SQUARE INCH LBS
Screw Surface TreatmentPASSIVATE
Thread Length1.063 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5305-00-020-3625NAS1100E06-6 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-628-6124NAS560HK3P15 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5306-00-638-1478 INTERCHANGEABLE
Bolt,machine
5305-00-725-9087NAS560HK3-5 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-802-4938NAS1100C06-7 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-802-4940NAS1100C3-10 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-802-6302NAS1100C3-8 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-804-1098NAS1100C04-7 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-804-1099NAS1100C04-8 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-804-2302NAS1100C04-12 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
AMS7478 Sae International Dba Sae International (USA)
NAS1100C3-18 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
AMS7478 Society of Automotive Engineers Inc (USA)
Related Parts
5305-00-020-3625INTERCHANGEABLE
SCREW,MACHINE
NAS1100E06-6
5305-00-628-6124INTERCHANGEABLE
SCREW,MACHINE
NAS560HK3P15
5306-00-638-1478INTERCHANGEABLE
BOLT,MACHINE
5305-00-725-9087INTERCHANGEABLE
SCREW,MACHINE
NAS560HK3-5
5305-00-802-4938INTERCHANGEABLE
SCREW,MACHINE
NAS1100C06-7
5305-00-802-4940INTERCHANGEABLE
SCREW,MACHINE
NAS1100C3-10
5305-00-802-6302INTERCHANGEABLE
SCREW,MACHINE
NAS1100C3-8
5305-00-804-1098INTERCHANGEABLE
SCREW,MACHINE
NAS1100C04-7
5305-00-804-1099INTERCHANGEABLE
SCREW,MACHINE
NAS1100C04-8
5305-00-804-2302INTERCHANGEABLE
SCREW,MACHINE
NAS1100C04-12
5306-00-806-0705INTERCHANGEABLE
BOLT,MACHINE
331306

Frequently Asked Questions

What is NSN 5305-00-804-0526?

NSN 5305-00-804-0526 is a Screw,machine, 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 5305-00-804-0526?

NSN 5305-00-804-0526 has 3 cross-referenced part numbers: AMS7478 (Sae International Dba Sae International), NAS1100C3-18 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), AMS7478 (Society of Automotive Engineers Inc).

What NSN replaces 5305-00-804-0526?

There are 11 known substitutes for 5305-00-804-0526: 5305-00-020-3625, 5305-00-628-6124, 5306-00-638-1478 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NAS1100C3-18?

Key specifications for NAS1100C3-18: Thread Direction: RIGHT-HAND; Screw Material: IRON ALLOY 660; Fastener Length: 1.125 INCHES NOMINAL IN; Thread Class: 3A A. 17 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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