PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NAS1351-4-12Screw,cap,socket Head

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5305-00-477-2713 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-477-2713 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-477-2713. Primary manufacturer part number: NAS1351-4-12.
Features
  • Screw,cap,socket Head — FSC 5305
  • Nominal Thread Diameter: 0.250 INCHES IN
  • Thread Series Designator: UNF
  • Width Across Flats: 0.188 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
  • Internal Drive Style: HEXAGON
  • Thread Length: 0.663 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
  • Material: STEEL OVERALL
  • Minimum Tensile Strength: 160000 POUNDS PER SQUARE INCH LBS
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-477-2713, 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 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-477-2713
Primary Part NumberNAS1351-4-12
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
Nominal Thread Diameter0.250 INCHES IN
Thread Series DesignatorUNF
Width Across Flats0.188 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
Internal Drive StyleHEXAGON
Thread Length0.663 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Minimum Tensile Strength160000 POUNDS PER SQUARE INCH LBS
Fastener Length0.734 INCHES MINIMUM AND 0.766 INCHES MAXIMUM IN
Hardness Rating36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
Head Diameter0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
Thread Class3A A
Minimum Yield Strength130000 POUNDS PER SQUARE INCH LBS
Thread Quantity Per Inch28
Head StyleFLAT CHAMFER
Features ProvidedCASEHARDENED
Thread DirectionRIGHT-HAND
Head Height0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
2030-01-298-07601079995 INTERCHANGEABLE
Steering System,marine
Schottel, Inc.
Cross-Reference Index
Part NumberManufacturer
57999-5 Sps Technologies, Llc Dba PB Fasteners (USA)
6300798-4-12 Naval Sea Systems Command (USA)
5305PL0201250 Jednolity Indeks Materialowy - Uniform Material Index (POL)
10125329 Nimikkeistokeskus Ncb Finland (FIN)
57999-5 Hamilton Sundstrand Corporation (USA)
NAS1351-4-12 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
Related Parts
2030-01-298-0760INTERCHANGEABLE
STEERING SYSTEM,MARINE
1079995

Frequently Asked Questions

What is NSN 5305-00-477-2713?

NSN 5305-00-477-2713 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 5305-00-477-2713?

NSN 5305-00-477-2713 has 6 cross-referenced part numbers: 57999-5 (Sps Technologies, Llc Dba PB Fasteners), 6300798-4-12 (Naval Sea Systems Command), 5305PL0201250 (Jednolity Indeks Materialowy - Uniform Material Index), 10125329 (Nimikkeistokeskus Ncb Finland), 57999-5 (Hamilton Sundstrand Corporation) and 1 more.

What NSN replaces 5305-00-477-2713?

There is 1 known substitute for 5305-00-477-2713: 2030-01-298-0760. Verify interchangeability with system specifications before substitution.

What are the specifications of NAS1351-4-12?

Key specifications for NAS1351-4-12: Nominal Thread Diameter: 0.250 INCHES IN; Thread Series Designator: UNF; Width Across Flats: 0.188 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN; Internal Drive Style: HEXAGON. 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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