PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS35311-190Screw,cap,hexagon Head

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5305-00-226-9221 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-226-9221 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-226-9221. Primary manufacturer part number: MS35311-190.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Material: NICKEL ALLOY 400 OR NICKEL ALLOY R-405 OVERALL
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Material Document and Classification: QQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL
  • Fastener Length: 2.750 INCHES NOMINAL IN
  • Head Style: HEXAGON
  • Thread Quantity Per Inch: 10
  • Width Between Flats: 1.100 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Nickel Alloy 400 or Nickel Alloy R-405 Overall construction
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-226-9221, 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 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 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
NSN5305-00-226-9221
Primary Part NumberMS35311-190
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
MaterialNICKEL ALLOY 400 OR NICKEL ALLOY R-405 OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Material Document and ClassificationQQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL
Fastener Length2.750 INCHES NOMINAL IN
Head StyleHEXAGON
Thread Quantity Per Inch10
Width Between Flats1.100 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
Thread Class2A A
Thread DirectionRIGHT-HAND
Head Height0.455 INCHES MINIMUM AND 0.483 INCHES MAXIMUM IN
Thread Length1.750 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN
Nominal Thread Diameter0.750 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5305-01-041-2828 INTERCHANGEABLE
Screw,cap,hexagon Head
5307-01-390-5908N-999-64GD-A-001 PIECE 70 INTERCHANGEABLE
Stud,plain
Carver Pump Company
Cross-Reference Index
Part NumberManufacturer
MS35311-190 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
800-0750-22-320 Carver Pump Company (USA)
3/4-10UNC X 2-3/4 LG Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5305-01-041-2828INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5307-01-390-5908INTERCHANGEABLE
STUD,PLAIN
N-999-64GD-A-001 PIECE 70

Frequently Asked Questions

What is NSN 5305-00-226-9221?

NSN 5305-00-226-9221 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 5305-00-226-9221?

NSN 5305-00-226-9221 has 3 cross-referenced part numbers: MS35311-190 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 800-0750-22-320 (Carver Pump Company), 3/4-10UNC X 2-3/4 LG (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5305-00-226-9221?

There are 2 known substitutes for 5305-00-226-9221: 5305-01-041-2828, 5307-01-390-5908. Verify interchangeability with system specifications before substitution.

What are the specifications of MS35311-190?

Key specifications for MS35311-190: Material: NICKEL ALLOY 400 OR NICKEL ALLOY R-405 OVERALL; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: QQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL; Fastener Length: 2.750 INCHES NOMINAL IN. 12 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