PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1/2-13 UNC-2A X 1 1/4, TYIL1Screw,cap,hexagon Head

Naval Inventory Control Point Mechanicsburg · NSN 5305-01-226-0116 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-226-0116 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-226-0116. Primary manufacturer part number: 1/2-13 UNC-2A X 1 1/4, TYIL1.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Departure From Cited Document: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
  • Material: NICKEL ALLOY OVERALL
  • Criticality Code Justification: ZZZW
  • Nondefinitive Spec/std Data: 1 TYPE AND 1/2X13X1 1/2 INLG SIZE AND 2A CLASS A
  • 4 verified cross-references
  • Primary manufacturer: Naval Inventory Control Point Mechanicsburg
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Nickel Alloy Overall construction
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-226-0116, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-226-0116
Primary Part Number1/2-13 UNC-2A X 1 1/4, TYIL1
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerNaval Inventory Control Point Mechanicsburg
StatusACTIVE
Departure From Cited DocumentMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
MaterialNICKEL ALLOY OVERALL
Criticality Code JustificationZZZW
Nondefinitive Spec/std Data1 TYPE AND 1/2X13X1 1/2 INLG SIZE AND 2A CLASS A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-01-041-2825 INTERCHANGEABLE
Screw,cap,hexagon Head
5305-01-041-2828 INTERCHANGEABLE
Screw,cap,hexagon Head
5305-01-079-9585 INTERCHANGEABLE
Screw,cap,hexagon Head
5307-01-187-4938 INTERCHANGEABLE
Stud,continuous Thread
5307-01-198-4194 INTERCHANGEABLE
Stud,plain
5307-01-225-2943 INTERCHANGEABLE
Stud,continuous Thread
5305-01-255-3503 INTERCHANGEABLE
Screw,cap,hexagon Head
5305-01-270-6171 INTERCHANGEABLE
Screw,cap,hexagon Head
5305-01-290-0027 INTERCHANGEABLE
Screw,cap,hexagon Head
5305-01-302-5223 INTERCHANGEABLE
Screw,cap,hexagon Head
Cross-Reference Index
Part NumberManufacturer
1/2-13 UNC-2A X 1 1/4, TYIL1 Naval Inventory Control Point Mechanicsburg (USA)
MIL-DTL-1222 QQ-N-281 GR400L1 Naval Inventory Control Point Mechanicsburg (USA)
MIL-DTL-1222 QQ-N-281 GR400 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
1/2-13 UNC-2A X 1 1/4, TYI Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5305-01-041-2825INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-01-041-2828INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-01-079-9585INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5307-01-187-4938INTERCHANGEABLE
STUD,CONTINUOUS THREAD
5307-01-198-4194INTERCHANGEABLE
STUD,PLAIN
5307-01-225-2943INTERCHANGEABLE
STUD,CONTINUOUS THREAD
5305-01-255-3503INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-01-270-6171INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-01-290-0027INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-01-302-5223INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5307-01-306-7531INTERCHANGEABLE
STUD,CONTINUOUS THREAD
5307-01-306-7533INTERCHANGEABLE
STUD,CONTINUOUS THREAD

Frequently Asked Questions

What is NSN 5305-01-226-0116?

NSN 5305-01-226-0116 is a Screw,cap,hexagon Head, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-226-0116?

NSN 5305-01-226-0116 has 4 cross-referenced part numbers: 1/2-13 UNC-2A X 1 1/4, TYIL1 (Naval Inventory Control Point Mechanicsburg), MIL-DTL-1222 QQ-N-281 GR400L1 (Naval Inventory Control Point Mechanicsburg), MIL-DTL-1222 QQ-N-281 GR400 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 1/2-13 UNC-2A X 1 1/4, TYI (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5305-01-226-0116?

There are 12 known substitutes for 5305-01-226-0116: 5305-01-041-2825, 5305-01-041-2828, 5305-01-079-9585 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1/2-13 UNC-2A X 1 1/4, TYIL1?

Key specifications for 1/2-13 UNC-2A X 1 1/4, TYIL1: Departure From Cited Document: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS; Material: NICKEL ALLOY OVERALL; Criticality Code Justification: ZZZW; Nondefinitive Spec/std Data: 1 TYPE AND 1/2X13X1 1/2 INLG SIZE AND 2A CLASS A. 4 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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