PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M1222RN8C228GHNNScrew,cap,hexagon Head

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5305-01-314-6750 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-314-6750 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-314-6750. Primary manufacturer part number: M1222RN8C228GHNN.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Thread Class: 2A A
  • Material: STEEL OVERALL
  • Minimum Yield Strength: 130000 POUNDS PER SQUARE INCH LBS
  • Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
  • Material Document and Classification: SAE J429 GR 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Head Style: HEXAGON
  • Minimum Tensile Strength: 150000 POUNDS PER SQUARE INCH LBS
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-314-6750, 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 15 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-314-6750
Primary Part NumberM1222RN8C228GHNN
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
Thread Class2A A
MaterialSTEEL OVERALL
Minimum Yield Strength130000 POUNDS PER SQUARE INCH LBS
Hardness Rating32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
Material Document and ClassificationSAE J429 GR 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Head StyleHEXAGON
Minimum Tensile Strength150000 POUNDS PER SQUARE INCH LBS
Thread Length1.250 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Head Height0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN
Nominal Thread Diameter0.500 INCHES IN
Thread Quantity Per Inch13
Width Between Flats0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
Fastener Length1.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5305-01-041-2832 INTERCHANGEABLE
Screw,cap,hexagon Head
Cross-Reference Index
Part NumberManufacturer
M1222RN8C228GHNN Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
1/2-13UNC-2A X 1 3/4 IN. American National Standards Institute Incorporated Dba American National Standards Institute (USA)
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
Related Parts
5305-01-041-2832INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD

Frequently Asked Questions

What is NSN 5305-01-314-6750?

NSN 5305-01-314-6750 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 5305-01-314-6750?

NSN 5305-01-314-6750 has 4 cross-referenced part numbers: M1222RN8C228GHNN (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 1/2-13UNC-2A X 1 3/4 IN. (American National Standards Institute Incorporated Dba American National Standards Institute), 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).

What NSN replaces 5305-01-314-6750?

There is 1 known substitute for 5305-01-314-6750: 5305-01-041-2832. Verify interchangeability with system specifications before substitution.

What are the specifications of M1222RN8C228GHNN?

Key specifications for M1222RN8C228GHNN: Thread Class: 2A A; Material: STEEL OVERALL; Minimum Yield Strength: 130000 POUNDS PER SQUARE INCH LBS; Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL. 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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