PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS35297-64Screw,cap,hexagon Head

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5305-00-550-1311 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-550-1311 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-550-1311. Primary manufacturer part number: MS35297-64.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Nominal Thread Diameter: 0.375 INCHES IN
  • Material: STEEL OVERALL
  • Surface Treatment: CADMIUM OR ZINC OVERALL
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Nondefinitive Spec/std Data: 2 TYPE AND 10P STYLE AND 5 GRADE
  • Hardness Rating: 23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL
  • Minimum Yield Strength: 120000 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,hexagon Head, cataloged under National Stock Number 5305-00-550-1311, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-550-1311
Primary Part NumberMS35297-64
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Nominal Thread Diameter0.375 INCHES IN
MaterialSTEEL OVERALL
Surface TreatmentCADMIUM OR ZINC OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Nondefinitive Spec/std Data2 TYPE AND 10P STYLE AND 5 GRADE
Hardness Rating23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL
Minimum Yield Strength120000 POUNDS PER SQUARE INCH LBS
Head Height0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN
Width Between Flats0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
Thread Class2A A
Fastener Length1.500 INCHES NOMINAL IN
Thread Quantity Per Inch16
Thread DirectionRIGHT-HAND
Head StyleHEXAGON
Thread Length1.000 INCHES MINIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5305-00-017-9788 INTERCHANGEABLE
Screw,cap,hexagon Head
5306-00-018-0076 INTERCHANGEABLE
Bolt,machine
5305-00-543-2865 INTERCHANGEABLE
Screw,cap,hexagon Head
5305-00-577-5453 INTERCHANGEABLE
Screw,cap,hexagon Head
5305-00-638-9084 INTERCHANGEABLE
Screw,cap,hexagon Head
5305-00-685-3193 INTERCHANGEABLE
Screw,cap,hexagon Head
Cross-Reference Index
Part NumberManufacturer
MS35297-64 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
FFS85AMEND2TYPE2STYLE10PGRADE5 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
5305-00-017-9788INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5306-00-018-0076INTERCHANGEABLE
BOLT,MACHINE
5305-00-543-2865INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-00-577-5453INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-00-638-9084INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-00-685-3193INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD

Frequently Asked Questions

What is NSN 5305-00-550-1311?

NSN 5305-00-550-1311 is a Screw,cap,hexagon Head, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-550-1311?

NSN 5305-00-550-1311 has 2 cross-referenced part numbers: MS35297-64 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), FFS85AMEND2TYPE2STYLE10PGRADE5 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 5305-00-550-1311?

There are 6 known substitutes for 5305-00-550-1311: 5305-00-017-9788, 5306-00-018-0076, 5305-00-543-2865 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS35297-64?

Key specifications for MS35297-64: Nominal Thread Diameter: 0.375 INCHES IN; Material: STEEL OVERALL; Surface Treatment: CADMIUM OR ZINC OVERALL; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC). 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-550-1311 still in active supply?

NSN 5305-00-550-1311 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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