PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NAS1351-06-8PScrew,cap,socket Head

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5305-01-148-2644 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-148-2644 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-148-2644. Primary manufacturer part number: NAS1351-06-8P.
Features
  • Screw,cap,socket Head — FSC 5305
  • Head Height: 0.134 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN
  • Head Diameter: 0.218 INCHES MINIMUM AND 0.226 INCHES MAXIMUM IN
  • Material: STEEL OVERALL
  • Thread Class: 3A A
  • Width Across Flats: 0.109 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN
  • Thread Length: 0.420 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
  • Thread Quantity Per Inch: 40
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 5305-01-148-2644, 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 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-01-148-2644
Primary Part NumberNAS1351-06-8P
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
StatusCANCELLED
Head Height0.134 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN
Head Diameter0.218 INCHES MINIMUM AND 0.226 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Thread Class3A A
Width Across Flats0.109 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN
Thread Length0.420 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
Thread Quantity Per Inch40
Thread Series DesignatorUNRF
Specification/standard Data80205-NAS1351 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Thread DirectionRIGHT-HAND
Nominal Thread Diameter0.138 INCHES IN
Fastener Length0.470 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
Hardness Rating38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
Head StyleFLAT CHAMFER
Minimum Yield Strength155000 POUNDS PER SQUARE INCH LBS
Minimum Tensile Strength180000 POUNDS PER SQUARE INCH LBS
Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Internal Drive StyleHEXAGON
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5331-00-579-315696906 INTERCHANGEABLE
O-Ring
Naval Air Warfare Center Aircraft Division Joint Base Jbmdl
3020-00-674-668296906 INTERCHANGEABLE
Gear,spur
Cae Usa Inc.
5310-00-934-9765MS35650-304 INTERCHANGEABLE
Nut,plain,hexagon
Joint Electronics Type Designation System
Cross-Reference Index
Part NumberManufacturer
FF-S-86 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
96906 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS16998-11 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
NAS1351-06-8P PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
5305009836650 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
Related Parts
5331-00-579-3156INTERCHANGEABLE
O-RING
96906
3020-00-674-6682INTERCHANGEABLE
GEAR,SPUR
96906
5310-00-934-9765INTERCHANGEABLE
NUT,PLAIN,HEXAGON
MS35650-304

Frequently Asked Questions

What is NSN 5305-01-148-2644?

NSN 5305-01-148-2644 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: cancelled.

What are the part numbers for NSN 5305-01-148-2644?

NSN 5305-01-148-2644 has 5 cross-referenced part numbers: FF-S-86 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 96906 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MS16998-11 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), NAS1351-06-8P (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), 5305009836650 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales).

What NSN replaces 5305-01-148-2644?

There are 3 known substitutes for 5305-01-148-2644: 5331-00-579-3156, 3020-00-674-6682, 5310-00-934-9765. Verify interchangeability with system specifications before substitution.

What are the specifications of NAS1351-06-8P?

Key specifications for NAS1351-06-8P: Head Height: 0.134 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN; Head Diameter: 0.218 INCHES MINIMUM AND 0.226 INCHES MAXIMUM IN; Material: STEEL OVERALL; Thread Class: 3A A. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-01-148-2644 still in active supply?

NSN 5305-01-148-2644 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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