PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILS1222TYIVCLA5/811UNC3AX43/4Stud,continuous Thread

Naval Sea Systems Command · NSN 5307-01-321-7264 · FSC 5307 · No Item Name Available
Verified by PartsTable
NSN 5307-01-321-7264 — this item is cataloged by the U.S. Government under National Stock Number 5307-01-321-7264. Primary manufacturer part number: MILS1222TYIVCLA5/811UNC3AX43/4.
Features
  • Stud,continuous Thread — FSC 5307
  • Nominal Thread Size: 0.625 INCHES STUD THREAD IN
  • Thread Quantity Per Inch: 11 STUD THREAD
  • Thread Direction: RIGHT-HAND STUD THREAD
  • Material Document and Classification: QQ-N-286,GR 500 FED SPEC SINGLE MATERIAL RESPONSE
  • Criticality Code Justification: ZZZW
  • Material: NICKEL ALLOY K-500
  • Departure From Cited Document: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
Applications
  • Applications requiring Nickel Alloy K-500 construction
General Description

The Stud,continuous Thread, cataloged under National Stock Number 5307-01-321-7264, is classified within Federal Supply Class 5307 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 3 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
NSN5307-01-321-7264
Primary Part NumberMILS1222TYIVCLA5/811UNC3AX43/4
Item NameStud,continuous Thread
FSC / FSG5307 / 53 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
Nominal Thread Size0.625 INCHES STUD THREAD IN
Thread Quantity Per Inch11 STUD THREAD
Thread DirectionRIGHT-HAND STUD THREAD
Material Document and ClassificationQQ-N-286,GR 500 FED SPEC SINGLE MATERIAL RESPONSE
Criticality Code JustificationZZZW
MaterialNICKEL ALLOY K-500
Departure From Cited DocumentMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) STUD THREAD
Thread Class3A STUD THREAD A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-01-170-4119 INTERCHANGEABLE
Screw,cap,hexagon Head
5305-01-172-5923 INTERCHANGEABLE
Screw,machine
5307-01-208-5421 INTERCHANGEABLE
Stud,continuous Thread
5307-01-227-2872 INTERCHANGEABLE
Stud,continuous Thread
5307-01-289-7148 INTERCHANGEABLE
Stud,plain
5307-01-306-7522 INTERCHANGEABLE
Stud,continuous Thread
5307-01-306-7527 INTERCHANGEABLE
Stud,continuous Thread
5307-01-306-7538 INTERCHANGEABLE
Stud,continuous Thread
5305-01-339-9560 INTERCHANGEABLE
Screw,cap,socket Head
5305-01-348-1724 INTERCHANGEABLE
Screw,cap,socket Head
Cross-Reference Index
Part NumberManufacturer
MILS1222TYIVCLA5/811UNC3AX43/4 Naval Sea Systems Command (USA)
MILS1222TYIVCLA5/811UNC3AX43/4L1 Naval Inventory Control Point Mechanicsburg (USA)
5/8-11UNC-3A-X-4-3/4-INCHES Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-1222L1 Naval Inventory Control Point Mechanicsburg (USA)
5/8-11UNC-3A X 4 3/4 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-1222 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-S-1222 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-1222 TYPE IVL1 Naval Inventory Control Point Mechanicsburg (USA)
5/8-11UNC-3A-X-4-3/4-INCHESL1 Naval Inventory Control Point Mechanicsburg (USA)
QQ-N-286 GRADE 500 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
QQ-N-286 GRADE 500L1 Naval Inventory Control Point Mechanicsburg (USA)
5/8-11UNC-3A X 4 3/4L1 Naval Inventory Control Point Mechanicsburg (USA)
MIL-S-1222L1 Naval Inventory Control Point Mechanicsburg (USA)
MIL-DTL-1222 TYPE IV Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5305-01-170-4119INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-01-172-5923INTERCHANGEABLE
SCREW,MACHINE
5307-01-208-5421INTERCHANGEABLE
STUD,CONTINUOUS THREAD
5307-01-227-2872INTERCHANGEABLE
STUD,CONTINUOUS THREAD
5307-01-289-7148INTERCHANGEABLE
STUD,PLAIN
5307-01-306-7522INTERCHANGEABLE
STUD,CONTINUOUS THREAD
5307-01-306-7527INTERCHANGEABLE
STUD,CONTINUOUS THREAD
5307-01-306-7538INTERCHANGEABLE
STUD,CONTINUOUS THREAD
5305-01-339-9560INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-348-1724INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-544-9792INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-545-0118INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD

Frequently Asked Questions

What is NSN 5307-01-321-7264?

NSN 5307-01-321-7264 is a Stud,continuous Thread, manufactured by Naval Sea Systems Command, classified under FSC 5307 (No Item Name Available). Status: active.

What are the part numbers for NSN 5307-01-321-7264?

NSN 5307-01-321-7264 has 14 cross-referenced part numbers: MILS1222TYIVCLA5/811UNC3AX43/4 (Naval Sea Systems Command), MILS1222TYIVCLA5/811UNC3AX43/4L1 (Naval Inventory Control Point Mechanicsburg), 5/8-11UNC-3A-X-4-3/4-INCHES (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-1222L1 (Naval Inventory Control Point Mechanicsburg), 5/8-11UNC-3A X 4 3/4 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 9 more.

What NSN replaces 5307-01-321-7264?

There are 12 known substitutes for 5307-01-321-7264: 5305-01-170-4119, 5305-01-172-5923, 5307-01-208-5421 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILS1222TYIVCLA5/811UNC3AX43/4?

Key specifications for MILS1222TYIVCLA5/811UNC3AX43/4: Nominal Thread Size: 0.625 INCHES STUD THREAD IN; Thread Quantity Per Inch: 11 STUD THREAD; Thread Direction: RIGHT-HAND STUD THREAD; Material Document and Classification: QQ-N-286,GR 500 FED SPEC SINGLE MATERIAL RESPONSE. 10 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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