PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS35303-8Screw,cap,hexagon Head

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5305-00-655-6362 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-655-6362 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-655-6362. Primary manufacturer part number: MS35303-8.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Head Style: HEXAGON
  • Fastener Length: 1.000 INCHES NOMINAL IN
  • Nominal Thread Diameter: 0.250 INCHES IN
  • Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
  • Material: STEEL OVERALL
  • Minimum Tensile Strength: 150000 POUNDS PER SQUARE INCH LBS
  • Thread Class: 2A A
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 5305-00-655-6362, 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 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-655-6362
Primary Part NumberMS35303-8
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
StatusACTIVE
Head StyleHEXAGON
Fastener Length1.000 INCHES NOMINAL IN
Nominal Thread Diameter0.250 INCHES IN
Hardness Rating32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
MaterialSTEEL OVERALL
Minimum Tensile Strength150000 POUNDS PER SQUARE INCH LBS
Thread Class2A A
Thread Quantity Per Inch20
Width Between Flats0.428 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
Thread Length0.750 INCHES MINIMUM IN
Surface TreatmentCADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread DirectionRIGHT-HAND
Head Height0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5305-00-225-384312569621-66 INTERCHANGEABLE
Screw,cap,hexagon Head
U S Army Tank Automotive Command Amsta-Im-Mm
5331-00-373-8437213546 INTERCHANGEABLE
O-Ring
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
5305-00-639-8828213546 INTERCHANGEABLE
Screw,cap,hexagon Head
Rolls-Royce Solutions America Inc
6625-01-522-18532135.46 INTERCHANGEABLE
Resistance Standard
Chauvin Arnoux, Inc. Dba Aemc Instruments Div Aemc Instruments
Cross-Reference Index
Part NumberManufacturer
MS35303-8 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
FFS85TYPE2STYLE10P Federal Specifications Promulgated by General Services Administration Washington DC (USA)
213546 CAGE 00000
Related Parts
5305-00-225-3843INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
12569621-66
5331-00-373-8437INTERCHANGEABLE
O-RING
213546
5305-00-639-8828INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
213546
6625-01-522-1853INTERCHANGEABLE
RESISTANCE STANDARD
2135.46

Frequently Asked Questions

What is NSN 5305-00-655-6362?

NSN 5305-00-655-6362 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: active.

What are the part numbers for NSN 5305-00-655-6362?

NSN 5305-00-655-6362 has 3 cross-referenced part numbers: MS35303-8 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), FFS85TYPE2STYLE10P (Federal Specifications Promulgated by General Services Administration Washington DC), 213546.

What NSN replaces 5305-00-655-6362?

There are 4 known substitutes for 5305-00-655-6362: 5305-00-225-3843, 5331-00-373-8437, 5305-00-639-8828 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS35303-8?

Key specifications for MS35303-8: Head Style: HEXAGON; Fastener Length: 1.000 INCHES NOMINAL IN; Nominal Thread Diameter: 0.250 INCHES IN; Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL. 14 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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