PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS35308-309Screw,cap,hexagon Head

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5305-00-720-8245 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-720-8245 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-720-8245. Primary manufacturer part number: MS35308-309.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Thread Direction: RIGHT-HAND
  • Nominal Thread Diameter: 0.250 INCHES IN
  • Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL
  • Thread Series Designator: UNF
  • Thread Length: 0.750 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN
  • Thread Quantity Per Inch: 28
  • Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 302 or Steel Comp 303 or Steel Comp 304 or Steel Comp 305 or Steel Comp 316 Overall construction
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-720-8245, 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 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-720-8245
Primary Part NumberMS35308-309
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
StatusACTIVE
Thread DirectionRIGHT-HAND
Nominal Thread Diameter0.250 INCHES IN
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES OVERALL
Thread Series DesignatorUNF
Thread Length0.750 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN
Thread Quantity Per Inch28
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Fastener Length1.125 INCHES NOMINAL IN
Head StyleHEXAGON
Width Between Flats0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
Minimum Tensile Strength80000 POUNDS PER SQUARE INCH LBS
Head Height0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN
Thread Class2A A
Surface TreatmentPASSIVATE OVERALL
MaterialSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5306-00-894-3418 INTERCHANGEABLE
Bolt,u
4820-01-086-659928603 INTERCHANGEABLE
Bleed Head
Moog Inc. Dba Ampac-Isp Corp
Cross-Reference Index
Part NumberManufacturer
MS35308-309 Meggitt Defense Systems, Inc. Dba Meggitt Western Design (USA)
28603 Zf Industrieantriebe Witten Gmbh (DEU)
MS35308-309 Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc (USA)
MS35308-309 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
411099-309 Raytheon Company Dba Raytheon (USA)
5305007208245 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
FF-S-85 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
NASM35308 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
FFS92 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
MS35308-309 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5306-00-894-3418INTERCHANGEABLE
BOLT,U
4820-01-086-6599INTERCHANGEABLE
BLEED HEAD
28603

Frequently Asked Questions

What is NSN 5305-00-720-8245?

NSN 5305-00-720-8245 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: active.

What are the part numbers for NSN 5305-00-720-8245?

NSN 5305-00-720-8245 has 10 cross-referenced part numbers: MS35308-309 (Meggitt Defense Systems, Inc. Dba Meggitt Western Design), 28603 (Zf Industrieantriebe Witten Gmbh), MS35308-309 (Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc), MS35308-309 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), 411099-309 (Raytheon Company Dba Raytheon) and 5 more.

What NSN replaces 5305-00-720-8245?

There are 2 known substitutes for 5305-00-720-8245: 5306-00-894-3418, 4820-01-086-6599. Verify interchangeability with system specifications before substitution.

What are the specifications of MS35308-309?

Key specifications for MS35308-309: Thread Direction: RIGHT-HAND; Nominal Thread Diameter: 0.250 INCHES IN; Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL; Thread Series Designator: UNF. 15 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com