PartsTable
Technical Data Sheet
MIL-DTL-1222 TYPE1 ✓ Verified by PartsTable
· BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include thread_class: 2A A, fastener_length: 2.650 INCHES MINIMUM AND 2.850 INCHES MAXIMUM IN, thread_direction: RIGHT-HAND, nominal_thread_diameter: 0.625 INCHES IN, thread_quantity_per_inch: 11, thread_series_designator: UNIFIED NATIONAL COARSE (UNC). This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-584-7947, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MIL-DTL-1222 TYPE1
NSN: 5305-00-584-7947
FSC: 5305
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
thread_class2A A
fastener_length2.650 INCHES MINIMUM AND 2.850 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
nominal_thread_diameter0.625 INCHES IN
thread_quantity_per_inch11
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
nondefinitive_spec/std_data2 TYPE AND 400 GRADE
specification/standard_data81349-MIL-DTL-1222 GOVERNMENT SPECIFICATION
NSN5305-00-584-7947
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MIL-DTL-1222 TYPE1 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281,CLA,FOR-1 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTION: RIGHT-HAND
NOMINAL THREAD DIAMETER: 0.625 INCHES IN
HEAD HEIGHT: 0.391 INCHES NOMINAL IN
MATERIAL: NICKEL ALLOY 400 OVERALL
MINIMUM YIELD STRENGTH: 40000 POUNDS PER SQUARE INCH LBS
HARDNESS RATING: 80.0 ROCKWELL B MINIMUM OVERALL
HEAD STYLE: HEXAGON
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281,CLA,FOR-1 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD DIAMETER0.625 INCHES IN
HEAD HEIGHT0.391 INCHES NOMINAL IN
MATERIALNICKEL ALLOY 400 OVERALL
MINIMUM YIELD STRENGTH40000 POUNDS PER SQUARE INCH LBS
HARDNESS RATING80.0 ROCKWELL B MINIMUM OVERALL
HEAD STYLEHEXAGON
THREAD CLASS3A A
MINIMUM TENSILE STRENGTH80000 POUNDS PER SQUARE INCH LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
75514007-1Interchangeable
interchangeable cross-reference
interchangeable
A040Interchangeable
interchangeable cross-reference
interchangeable
3/8-16UNC-2A X 1IN TYI CLASSInterchangeable
interchangeable cross-reference
interchangeable
QQ-N-281 GRADE 400 CLASS AInterchangeable
interchangeable cross-reference
interchangeable
3/8-16UNC-2A X 1 INCHInterchangeable
interchangeable cross-reference
interchangeable
M1222RN10C244NANNInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-DTL-1222 TYPE1?
MIL-DTL-1222 TYPE1 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace MIL-DTL-1222 TYPE1?
There are 16 known substitutes for MIL-DTL-1222 TYPE1: 75514007-1, A040, 3/8-16UNC-2A X 1IN TYI CLASS and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-DTL-1222 TYPE1?
MIL-DTL-1222 TYPE1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-584-7947. This indicates validated use in U.S. government and defense supply chains.
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