PartsTable
Technical Data Sheet
MIL-DTL-1222TYII GR400 SLF-LKG ✓ 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,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, thread_class: 3A A, fastener_length: 1.125 INCHES MAXIMUM IN, special_features: SCREW, CAP, SOCKET HEAD, SELF LOCKING (REQUESTED NAME), end_item_identification: OPERATING ROD ASSEMBLY, nominal_thread_diameter: 0.500 INCHES IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-393-7708, 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-1222TYII GR400 SLF-LKG
NSN: 5305-01-393-7708
FSC: 5305
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
thread_class3A A
fastener_length1.125 INCHES MAXIMUM IN
special_featuresSCREW, CAP, SOCKET HEAD, SELF LOCKING (REQUESTED NAME)
end_item_identificationOPERATING ROD ASSEMBLY
nominal_thread_diameter0.500 INCHES IN
thread_quantity_per_inch13
thread_series_designatorUNRC
criticality_code_justificationZZZX
departure_from_cited_designatorMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
material_document_and_classificationQQ-N-286 GR500 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5305-01-393-7708
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MIL-DTL-1222TYII GR400 SLF-LKG · 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
DEPARTURE FROM CITED DESIGNATOR: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
THREAD QUANTITY PER INCH: 20
THREAD CLASS: 3A A
THREAD DIRECTION: RIGHT-HAND
CRITICALITY CODE JUSTIFICATION: ZZZX
THREAD SERIES DESIGNATOR: UNRC
TECHNICAL CHARACTERISTICS (FLIS)
DEPARTURE FROM CITED DESIGNATORMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
THREAD QUANTITY PER INCH20
THREAD CLASS3A A
THREAD DIRECTIONRIGHT-HAND
CRITICALITY CODE JUSTIFICATIONZZZX
THREAD SERIES DESIGNATORUNRC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 35
1/2-13UNC-2Z X 5, TYI CLASS AL1Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-1222L1Interchangeable
interchangeable cross-reference
interchangeable
QQ-N-281, GRADE 400, CLASS AL1Interchangeable
interchangeable cross-reference
interchangeable
803-4385050 PIECE 67L1Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-1222 TY IIL1Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-1222 TY IIInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-DTL-1222TYII GR400 SLF-LKG?
MIL-DTL-1222TYII GR400 SLF-LKG is a SCREW,CAP,SOCKET HEAD.
What parts can replace MIL-DTL-1222TYII GR400 SLF-LKG?
There are 35 known substitutes for MIL-DTL-1222TYII GR400 SLF-LKG: 1/2-13UNC-2Z X 5, TYI CLASS AL1, MIL-DTL-1222L1, QQ-N-281, GRADE 400, CLASS AL1 and 32 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-DTL-1222TYII GR400 SLF-LKG?
MIL-DTL-1222TYII GR400 SLF-LKG is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-393-7708. This indicates validated use in U.S. government and defense supply chains.
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