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Technical Data Sheet

MIL-DTL-1222,TYIII,GR 7,STYAL1 — Technical Data Sheet

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— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), nominal_thread_size: 0.438 INCHES IN, thread_quantity_per_inch: 12, departure_from_cited_document: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS, criticality_code_justification: ZZZW. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 5310-01-383-3203, 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,TYIII,GR 7,STYAL1
NSN: 5310-01-383-3203
FSC: 5310
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
nominal_thread_size0.438 INCHES IN
thread_quantity_per_inch12
departure_from_cited_documentMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
criticality_code_justificationZZZW
part_name_assigned_by_controlling_agencyNUT,HEAVY,HEXAGON
NSN5310-01-383-3203
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MIL-DTL-1222,TYIII,GR 7,STYAL1 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
THREAD CLASS: 2B
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
CRITICALITY CODE JUSTIFICATION: ZZZW
•
THREAD QUANTITY PER INCH: 14
•
DEPARTURE FROM CITED DOCUMENT: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
•
NOMINAL THREAD SIZE: 0.438 INCHES IN
TECHNICAL CHARACTERISTICS
THREAD CLASS2B
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
CRITICALITY CODE JUSTIFICATIONZZZW
THREAD QUANTITY PER INCH14
DEPARTURE FROM CITED DOCUMENTMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
NOMINAL THREAD SIZE0.438 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
MIL-DTL-1222L1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MIL-DTL-1222InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MIL-DTL-1222,TYIII,GR 7,STYAInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MIL-STD-1222,TYIII,GR7,STYAInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
29307NPC15InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1.00008UNC2BT3G7NSAFAL1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-DTL-1222,TYIII,GR 7,STYAL1?
MIL-DTL-1222,TYIII,GR 7,STYAL1 is a NUT,PLAIN,HEXAGON.
What parts can replace MIL-DTL-1222,TYIII,GR 7,STYAL1?
There are 11 known substitutes for MIL-DTL-1222,TYIII,GR 7,STYAL1: MIL-DTL-1222L1, MIL-DTL-1222, MIL-DTL-1222,TYIII,GR 7,STYA and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-DTL-1222,TYIII,GR 7,STYAL1?
MIL-DTL-1222,TYIII,GR 7,STYAL1 is cataloged in the Federal Logistics Information System under NSN 5310-01-383-3203. This indicates validated use in U.S. government and defense supply chains.
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