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PartsTable / COMPONENT / 1/2-13UNC-2B TY1 GR316
1/2-13UNC-2B TY1 GR316 ✓ 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 1/2-13UNC-2B TY1 GR316 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 5310-01-372-2666, 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
1/2-13UNC-2B TY1 GR316
NSN: 5310-01-372-2666
FSC: 5310
CAGE: 80204 — AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED DBA AMERICAN NATIONAL STANDARDS INSTITUTE (USA)
SPECIFICATIONS
Part Number1/2-13UNC-2B TY1 GR316
NSN5310-01-372-2666
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1/2-13UNC-2B TY1 GR316 · 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
•
SPECIFICATION/STANDARD DATA: 81349--1222N1W8C20SDNN GOVERNMENT SPECIFICATION
•
NOMINAL THREAD SIZE: 0.500 INCHES IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
BEARING SURFACE TYPE: WASHER FACED
•
HARDNESS RATING: 95.0 ROCKWELL B MINIMUM
•
THREAD QUANTITY PER INCH: 13
•
MATERIAL: STEEL COMP 316 OVERALL
•
THREAD CLASS: 2B
TECHNICAL CHARACTERISTICS (FLIS)
SPECIFICATION/STANDARD DATA81349--1222N1W8C20SDNN GOVERNMENT SPECIFICATION
NOMINAL THREAD SIZE0.500 INCHES IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
BEARING SURFACE TYPEWASHER FACED
HARDNESS RATING95.0 ROCKWELL B MINIMUM
THREAD QUANTITY PER INCH13
MATERIALSTEEL COMP 316 OVERALL
THREAD CLASS2B
NUT HEIGHT0.427 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
166-14Interchangeable
C0ver Assembly,brid
interchangeable
F100633Interchangeable
interchangeable cross-reference
interchangeable
1488884Interchangeable
interchangeable cross-reference
interchangeable
ST32D19-10Interchangeable
interchangeable cross-reference
interchangeable
ST32D19Interchangeable
interchangeable cross-reference
interchangeable
115406Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1/2-13UNC-2B TY1 GR316?
1/2-13UNC-2B TY1 GR316 is a 1/2-13UNC-2B TY1 GR316.
What parts can replace 1/2-13UNC-2B TY1 GR316?
There are 15 known substitutes for 1/2-13UNC-2B TY1 GR316: 166-14, F100633, 1488884 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1/2-13UNC-2B TY1 GR316?
1/2-13UNC-2B TY1 GR316 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-372-2666. 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