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Technical Data Sheet

MIL-DTL-1222,TYIII,GR4,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: 0.875 INCHES IN, departure_from_cited_document: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS, criticality_code_justification: ZZZW. This part is cataloged in the Federal Logistics Information System under NSN 5310-00-458-0465, 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,GR4,STYAL1
NSN: 5310-00-458-0465
FSC: 5310
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
nominal_thread_size0.875 INCHES IN
thread_quantity_per_inch9
departure_from_cited_documentMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
criticality_code_justificationZZZW
NSN5310-00-458-0465
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MIL-DTL-1222,TYIII,GR4,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 SERIES: UNIFIED NATIONAL COARSE (UNC)
•
CRITICALITY CODE JUSTIFICATION: ZZZX
•
NOMINAL THREAD SIZE: 0.750 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD CLASS: 2B
•
TEMP RATING: 875.0 FAHRENHEIT MINIMUM AND 1000.0 FAHRENHEIT MAXIMUM DEGF
•
THREAD QUANTITY PER INCH: 10
•
NONDEFINITIVE SPEC/STD DATA: 3 TYPE AND 4 GRADE
TECHNICAL CHARACTERISTICS
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
CRITICALITY CODE JUSTIFICATIONZZZX
NOMINAL THREAD SIZE0.750 INCHES IN
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2B
TEMP RATING875.0 FAHRENHEIT MINIMUM AND 1000.0 FAHRENHEIT MAXIMUM DEGF
THREAD QUANTITY PER INCH10
NONDEFINITIVE SPEC/STD DATA3 TYPE AND 4 GRADE
DEPARTURE FROM CITED DESIGNATORMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
22600N PIECE 38InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MIL-DTL-1222,TYIII,GR4,STYAInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
TYIII,GR 4,STY A,1-8UNC-2BInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MS16286-11L1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1.12508UNC2BT3G4NSAFAInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MILS1222TYIIIGR4 11/4 8UNInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-DTL-1222,TYIII,GR4,STYAL1?
MIL-DTL-1222,TYIII,GR4,STYAL1 is a NUT,PLAIN,HEXAGON.
What parts can replace MIL-DTL-1222,TYIII,GR4,STYAL1?
There are 18 known substitutes for MIL-DTL-1222,TYIII,GR4,STYAL1: 22600N PIECE 38, MIL-DTL-1222,TYIII,GR4,STYA, TYIII,GR 4,STY A,1-8UNC-2B and 15 more. Substitute compatibility should be verified for your specific system.
Is MIL-DTL-1222,TYIII,GR4,STYAL1 still available?
MIL-DTL-1222,TYIII,GR4,STYAL1 is currently cancelled.
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