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PartsTable / COMPONENT / MIL-S-TY1 STY-A GR-2H 5/16
MIL-S-TY1 STY-A GR-2H 5/16 ✓ Verified by PartsTable
— · 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 MIL-S-TY1 STY-A GR-2H 5/16 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-440-8108, 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-S-TY1 STY-A GR-2H 5/16
NSN: 5310-01-440-8108
FSC: 5310
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberMIL-S-TY1 STY-A GR-2H 5/16
NSN5310-01-440-8108
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MIL-S-TY1 STY-A GR-2H 5/16 · 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 DIRECTION: RIGHT-HAND
•
WIDTH ACROSS FLATS: 0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
NOMINAL THREAD SIZE: 0.312 INCHES IN
•
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
•
THREAD QUANTITY PER INCH: 18
•
MATERIAL: STEEL UNS K04002 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A 194 2H ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
WIDTH ACROSS FLATS0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
NOMINAL THREAD SIZE0.312 INCHES IN
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
THREAD QUANTITY PER INCH18
MATERIALSTEEL UNS K04002 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A 194 2H ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NUT STYLEHEXAGON
NUT HEIGHT0.258 INCHES MINIMUM AND 0.273 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
510001Interchangeable
interchangeable cross-reference
interchangeable
34949Interchangeable
interchangeable cross-reference
interchangeable
1799-164Interchangeable
interchangeable cross-reference
interchangeable
309-17511Interchangeable
interchangeable cross-reference
interchangeable
97501-5Interchangeable
interchangeable cross-reference
interchangeable
H-7656 ITEM 119Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-S-TY1 STY-A GR-2H 5/16?
MIL-S-TY1 STY-A GR-2H 5/16 is a MIL-S-TY1 STY-A GR-2H 5/16.
What parts can replace MIL-S-TY1 STY-A GR-2H 5/16?
There are 6 known substitutes for MIL-S-TY1 STY-A GR-2H 5/16: 510001, 34949, 1799-164 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-S-TY1 STY-A GR-2H 5/16?
MIL-S-TY1 STY-A GR-2H 5/16 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-440-8108. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026