PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3/8-16UNC-2A X 1IN TYI CLASSScrew,cap,hexagon Head

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5305-01-302-5223 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-302-5223 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-302-5223. Primary manufacturer part number: 3/8-16UNC-2A X 1IN TYI CLASS.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Material Document and Classification: QQ-N-281,CLA FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Nondefinitive Spec/std Data: 1 TYPE
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Head Style: HEXAGON
  • Departure From Cited Document: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
  • Thread Quantity Per Inch: 16
  • Criticality Code Justification: ZZZW
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 5305-01-302-5223, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 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
NSN5305-01-302-5223
Primary Part Number3/8-16UNC-2A X 1IN TYI CLASS
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Material Document and ClassificationQQ-N-281,CLA FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Nondefinitive Spec/std Data1 TYPE
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Head StyleHEXAGON
Departure From Cited DocumentMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
Thread Quantity Per Inch16
Criticality Code JustificationZZZW
Width Between Flats0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
Fastener Length1.000 INCHES NOMINAL IN
MaterialNICKEL ALLOY OVERALL
Head Height0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN
Thread Class2A A
Thread Length1.000 INCHES NOMINAL IN
Nominal Thread Diameter0.375 INCHES IN
Minimum Tensile Strength70000 POUNDS PER SQUARE INCH LBS
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-00-584-7947A024NICU INTERCHANGEABLE
Screw,cap,hexagon Head
Circor Naval Solutions Llc Dba Warren Pumps
5305-01-041-2825 INTERCHANGEABLE
Screw,cap,hexagon Head
5305-01-041-2828 INTERCHANGEABLE
Screw,cap,hexagon Head
5305-01-065-8335 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
5305-01-226-0114 INTERCHANGEABLE
Screw,cap,hexagon Head
5305-01-226-0116 INTERCHANGEABLE
Screw,cap,hexagon Head
Cross-Reference Index
Part NumberManufacturer
3/8-16UNC-2A X 1IN TYI CLASS Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
QQ-N-281 GRADE 400 CLASS A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
3/8-16UNC-2A X 1 INCH Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
QQ-N-281 GRADE 400 CLASS AL1 Naval Inventory Control Point Mechanicsburg (USA)
MIL-DTL-1222 TYPE 1L1 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
3/8-16UNC-2A X 1 INCHL1 Naval Inventory Control Point Mechanicsburg (USA)
MIL-DTL-1222 TYPE 1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
3/8-16UNC-2A X 1IN TYI CLASSL1 Naval Inventory Control Point Mechanicsburg (USA)
MIL-DTL-1222 QQ-N-281 GR400L1 Naval Inventory Control Point Mechanicsburg (USA)
Related Parts
5305-00-584-7947INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
A024NICU
5305-01-041-2825INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-01-041-2828INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-01-065-8335INTERCHANGEABLE
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
5305-01-226-0114INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-01-226-0116INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-01-255-3503INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-01-265-3777INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD

Frequently Asked Questions

What is NSN 5305-01-302-5223?

NSN 5305-01-302-5223 is a Screw,cap,hexagon Head, manufactured by Military Specifications Promulgated by Military Departments/agencies 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 5305-01-302-5223?

NSN 5305-01-302-5223 has 10 cross-referenced part numbers: 3/8-16UNC-2A X 1IN TYI CLASS (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), QQ-N-281 GRADE 400 CLASS A (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 3/8-16UNC-2A X 1 INCH (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), QQ-N-281 GRADE 400 CLASS AL1 (Naval Inventory Control Point Mechanicsburg), MIL-DTL-1222 TYPE 1L1 (Naval Inventory Control Point Mechanicsburg) and 5 more.

What NSN replaces 5305-01-302-5223?

There are 12 known substitutes for 5305-01-302-5223: 5305-00-584-7947, 5305-01-041-2825, 5305-01-041-2828 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3/8-16UNC-2A X 1IN TYI CLASS?

Key specifications for 3/8-16UNC-2A X 1IN TYI CLASS: Material Document and Classification: QQ-N-281,CLA FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Nondefinitive Spec/std Data: 1 TYPE; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Head Style: HEXAGON. 16 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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