PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-1222, TYPE IIScrew,cap,hexagon Head

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5305-01-425-7874 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-425-7874 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-425-7874. Primary manufacturer part number: MIL-DTL-1222, TYPE II.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
  • 14 verified cross-references
  • Primary manufacturer: Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-425-7874, 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 2 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-425-7874
Primary Part NumberMIL-DTL-1222, TYPE II
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
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsQUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5305-01-339-9560 INTERCHANGEABLE
Screw,cap,socket Head
5305-01-406-8548 INTERCHANGEABLE
Screw,cap,socket Head
5305-01-423-8881 INTERCHANGEABLE
Screw,cap,socket Head
5305-01-426-3158 INTERCHANGEABLE
Screw,cap,hexagon Head
5305-01-429-5654 INTERCHANGEABLE
Screw,cap,socket Head
5305-01-544-9792 INTERCHANGEABLE
Screw,cap,socket Head
5305-01-545-0118 INTERCHANGEABLE
Screw,cap,hexagon Head
5305-01-545-0168 INTERCHANGEABLE
Screw,cap,socket Head
5305-01-642-0502 INTERCHANGEABLE
Screw,cap,socket Head
5305-01-657-0405 INTERCHANGEABLE
Screw,cap,hexagon Head
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-1222, TYPE II Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
ASTM-B348, GRADE T7L1 Naval Inventory Control Point Mechanicsburg (USA)
243-6758311 FIND MSAS-A90 Naval Sea Systems Command (USA)
243-6758311 FIND MSAS-A90L1 Naval Inventory Control Point Mechanicsburg (USA)
243-6758311 FIND MSAS-A66 Naval Sea Systems Command (USA)
211075809L1 Naval Inventory Control Point Mechanicsburg (USA)
3/4-10UNRC-2A X2 INCHES Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
3/4-10UNRC-2A X2 INCHESL1 Naval Inventory Control Point Mechanicsburg (USA)
MIL-DTL-1222, TYPE IIL1 Naval Inventory Control Point Mechanicsburg (USA)
211075809 Naval Sea Systems Command (USA)
ASTM-B348, GRADE T7 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
26M01-5408 FN5 Naval Sea Systems Command (USA)
243-6758311 FIND MSAS-A66L1 Naval Inventory Control Point Mechanicsburg (USA)
26M01-5408 FN5L1 Naval Inventory Control Point Mechanicsburg (USA)
Related Parts
5305-01-339-9560INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-406-8548INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-423-8881INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-426-3158INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-01-429-5654INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-544-9792INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-545-0118INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-01-545-0168INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-642-0502INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-657-0405INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD

Frequently Asked Questions

What is NSN 5305-01-425-7874?

NSN 5305-01-425-7874 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 5305-01-425-7874?

NSN 5305-01-425-7874 has 14 cross-referenced part numbers: MIL-DTL-1222, TYPE II (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), ASTM-B348, GRADE T7L1 (Naval Inventory Control Point Mechanicsburg), 243-6758311 FIND MSAS-A90 (Naval Sea Systems Command), 243-6758311 FIND MSAS-A90L1 (Naval Inventory Control Point Mechanicsburg), 243-6758311 FIND MSAS-A66 (Naval Sea Systems Command) and 9 more.

What NSN replaces 5305-01-425-7874?

There are 10 known substitutes for 5305-01-425-7874: 5305-01-339-9560, 5305-01-406-8548, 5305-01-423-8881 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-DTL-1222, TYPE II?

Key specifications for MIL-DTL-1222, TYPE II: End Item Identification: FWD/AFT SEAL ASSY,MAIN PROP SHAFT; Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS. 3 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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