PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS35307-420Screw,cap,hexagon Head

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5305-00-139-7071 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-139-7071 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-139-7071. Primary manufacturer part number: MS35307-420.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Thread Direction: RIGHT-HAND
  • Head Style: HEXAGON
  • Nominal Thread Diameter: 0.500 INCHES IN
  • Hardness Rating: 80.0 ROCKWELL B MINIMUM OVERALL
  • Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL
  • Surface Finish: 63.0 MICROINCHES THREADS
  • Material: STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303F OR STEEL COMP 385 OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 308 OR STEEL COMP 309 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP 314 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 323 OR STEEL COMP 324 OR STEEL COMP 347 OR STEEL COMP 348 OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 301 or Steel Comp 302 or Steel Comp 303 or Steel Comp 303f or Steel Comp 385 or Steel Comp 303SE or Steel Comp 304 or Steel Comp 304l or Steel Comp 305 or Steel Comp 308 or Steel Comp 309 or Steel Comp 309s or Steel Comp 310 or Steel Comp 310s or Steel Comp 314 or Steel Comp 316 or Steel Comp 316l or Steel Comp 317 or Steel Comp 321 or Steel Comp 323 or Steel Comp 324 or Steel Comp 347 or Steel Comp 348 Overall construction
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-139-7071, 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-139-7071
Primary Part NumberMS35307-420
Item NameScrew,cap,hexagon 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
Thread DirectionRIGHT-HAND
Head StyleHEXAGON
Nominal Thread Diameter0.500 INCHES IN
Hardness Rating80.0 ROCKWELL B MINIMUM OVERALL
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES OVERALL
Surface Finish63.0 MICROINCHES THREADS
MaterialSTEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303F OR STEEL COMP 385 OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 308 OR STEEL COMP 309 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP 314 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 323 OR STEEL COMP 324 OR STEEL COMP 347 OR STEEL COMP 348 OVERALL
Minimum Yield Strength30000 POUNDS PER SQUARE INCH LBS
Head Height0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN
Thread Quantity Per Inch13
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Surface TreatmentPASSIVATE OVERALL
Thread Length1.442 INCHES MINIMUM IN
Nondefinitive Spec/std Data2 TYPE AND 10P STYLE
Thread Class2A A
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Fastener Length3.156 INCHES MINIMUM AND 3.250 INCHES MAXIMUM IN
Width Between Flats0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
Minimum Tensile Strength80000 POUNDS PER SQUARE INCH LBS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
5960-00-272-8551 INTERCHANGEABLE
Electron Tube
3110-00-293-8644061-3 INTERCHANGEABLE
Bearing,ball,annular
Lockheed Martin Corporation Div Rms - Mitchel Field
2590-00-306-5663 INTERCHANGEABLE
Cap,filler Opening
5950-00-417-3733 INTERCHANGEABLE
Transformer,power
5960-00-615-5643 INTERCHANGEABLE
Electron Tube
2915-00-822-3384599-3 INTERCHANGEABLE
Valve,drain Fuel
Parker-Hannifin Corporation Dba Pneutronics
5999-01-058-9421911265-1 INTERCHANGEABLE
Delay Line
Raytheon Company Dba Raytheon Co
1680-01-135-27625993 INTERCHANGEABLE
Bracket,overheat,aft Panel,lhs,c
Meggitt Safety Systems Inc
5950-01-176-0180 INTERCHANGEABLE
Reactor
5310-01-226-439003-05993-N INTERCHANGEABLE
Washer
Dragon Valves Inc
Cross-Reference Index
Part NumberManufacturer
FF-S-85 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
MS35307-420 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
5993 Terex Reedrill Dba Reedrill Texoma Div Terex Mining (USA)
MS35307-420 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
NASM35307 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
Related Parts
5960-00-272-8551INTERCHANGEABLE
ELECTRON TUBE
3110-00-293-8644INTERCHANGEABLE
BEARING,BALL,ANNULAR
061-3
2590-00-306-5663INTERCHANGEABLE
CAP,FILLER OPENING
5950-00-417-3733INTERCHANGEABLE
TRANSFORMER,POWER
5960-00-615-5643INTERCHANGEABLE
ELECTRON TUBE
2915-00-822-3384INTERCHANGEABLE
VALVE,DRAIN FUEL
599-3
5999-01-058-9421INTERCHANGEABLE
DELAY LINE
911265-1
1680-01-135-2762INTERCHANGEABLE
BRACKET,OVERHEAT,AFT PANEL,LHS,C
5993
5950-01-176-0180INTERCHANGEABLE
REACTOR
5310-01-226-4390INTERCHANGEABLE
WASHER
03-05993-N
6515-01-701-4461INTERCHANGEABLE
SHEATH,PROTECTIVE,NEEDLE AND SYR
5993

Frequently Asked Questions

What is NSN 5305-00-139-7071?

NSN 5305-00-139-7071 is a Screw,cap,hexagon 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 5305-00-139-7071?

NSN 5305-00-139-7071 has 5 cross-referenced part numbers: FF-S-85 (Federal Specifications Promulgated by General Services Administration Washington DC), MS35307-420 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), 5993 (Terex Reedrill Dba Reedrill Texoma Div Terex Mining), MS35307-420 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), NASM35307 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use).

What NSN replaces 5305-00-139-7071?

There are 11 known substitutes for 5305-00-139-7071: 5960-00-272-8551, 3110-00-293-8644, 2590-00-306-5663 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS35307-420?

Key specifications for MS35307-420: Thread Direction: RIGHT-HAND; Head Style: HEXAGON; Nominal Thread Diameter: 0.500 INCHES IN; Hardness Rating: 80.0 ROCKWELL B MINIMUM OVERALL. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-139-7071 still in active supply?

NSN 5305-00-139-7071 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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