PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6300766-26Screw,cap,socket Head

Naval Sea Systems Command · NSN 5305-00-983-7428 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-983-7428 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-983-7428. Primary manufacturer part number: 6300766-26.
Features
  • Screw,cap,socket Head — FSC 5305
  • Thread Length: 0.282 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
  • Minimum Yield Strength: 130000 POUNDS PER SQUARE INCH LBS
  • Nondefinitive Spec/std Data: 6 TYPE
  • Thread Series Designator: UNF
  • Material: STEEL OVERALL
  • Head Diameter: 0.303 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
  • Head Style: FLAT CHAMFER
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 5305-00-983-7428, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-983-7428
Primary Part Number6300766-26
Item NameScrew,cap,socket Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusCANCELLED
Thread Length0.282 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
Minimum Yield Strength130000 POUNDS PER SQUARE INCH LBS
Nondefinitive Spec/std Data6 TYPE
Thread Series DesignatorUNF
MaterialSTEEL OVERALL
Head Diameter0.303 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
Head StyleFLAT CHAMFER
Hardness Rating36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
Head Height0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
Nominal Thread Diameter0.190 INCHES IN
Thread Class3A A
Surface Treatment Document and ClassificationQQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Internal Drive StyleHEXAGON
Thread Quantity Per Inch32
Fastener Length0.344 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
Minimum Tensile Strength160000 POUNDS PER SQUARE INCH LBS
Thread DirectionRIGHT-HAND
Width Across Flats0.156 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
6240-00-155-7802 INTERCHANGEABLE
Lamp,incandescent
5305-00-993-0190MS35206-214 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
6300766-26 Naval Sea Systems Command (USA)
MS16998-26 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
FF-S-86 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
870713 Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Us Army Research, Development and Engineering Command Armament (USA)
852938-00 Defense Reduction Agency (USA)
120090-83 Rosemount Analytical, Inc. Div Process Analytical Division (USA)
5305009837428 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee
Related Parts
6240-00-155-7802INTERCHANGEABLE
LAMP,INCANDESCENT
5305-00-993-0190INTERCHANGEABLE
SCREW,MACHINE
MS35206-214

Frequently Asked Questions

What is NSN 5305-00-983-7428?

NSN 5305-00-983-7428 is a Screw,cap,socket Head, manufactured by Naval Sea Systems Command, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-983-7428?

NSN 5305-00-983-7428 has 7 cross-referenced part numbers: 6300766-26 (Naval Sea Systems Command), MS16998-26 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), FF-S-86 (Federal Specifications Promulgated by General Services Administration Washington DC), 870713 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Us Army Research, Development and Engineering Command Armament), 852938-00 (Defense Reduction Agency) and 2 more.

What NSN replaces 5305-00-983-7428?

There are 2 known substitutes for 5305-00-983-7428: 6240-00-155-7802, 5305-00-993-0190. Verify interchangeability with system specifications before substitution.

What are the specifications of 6300766-26?

Key specifications for 6300766-26: Thread Length: 0.282 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN; Minimum Yield Strength: 130000 POUNDS PER SQUARE INCH LBS; Nondefinitive Spec/std Data: 6 TYPE; Thread Series Designator: UNF. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-983-7428 still in active supply?

NSN 5305-00-983-7428 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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