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PartsTable / COMPONENT / 5/8-11UNC-2B ME D TY1 GR405
5/8-11UNC-2B ME D TY1 GR405 ✓ 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 5/8-11UNC-2B ME D TY1 GR405 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-318-2258, 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
5/8-11UNC-2B ME D TY1 GR405
NSN: 5310-01-318-2258
FSC: 5310
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
Part Number5/8-11UNC-2B ME D TY1 GR405
NSN5310-01-318-2258
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5/8-11UNC-2B ME D TY1 GR405 · 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
•
MATERIAL: NICKEL ALLOY R-405 OR NICKEL ALLOY 400 OVERALL
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
NOMINAL THREAD SIZE: 0.625 INCHES IN
•
THREAD QUANTITY PER INCH: 11
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281,CL A FED SPEC 1ST MATERIAL RESPONSE OR QQ-N-281,CL B FED SPEC 2ND MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH ACROSS FLATS: 0.922 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2B
MATERIALNICKEL ALLOY R-405 OR NICKEL ALLOY 400 OVERALL
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
NOMINAL THREAD SIZE0.625 INCHES IN
THREAD QUANTITY PER INCH11
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281,CL A FED SPEC 1ST MATERIAL RESPONSE OR QQ-N-281,CL B FED SPEC 2ND MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
WIDTH ACROSS FLATS0.922 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN
NUT STYLEHEXAGON
NUT HEIGHT0.535 INCHES MINIMUM AND 0.559 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
803-2177917-8-16Interchangeable
interchangeable cross-reference
interchangeable
2177917-08-16Interchangeable
interchangeable cross-reference
interchangeable
27-006 PART 16 12INInterchangeable
interchangeable cross-reference
interchangeable
803-1385541-06X-11Interchangeable
interchangeable cross-reference
interchangeable
MIL-S-1222GInterchangeable
interchangeable cross-reference
interchangeable
803-1385623-04XX-14Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5/8-11UNC-2B ME D TY1 GR405?
5/8-11UNC-2B ME D TY1 GR405 is a 5/8-11UNC-2B ME D TY1 GR405.
What parts can replace 5/8-11UNC-2B ME D TY1 GR405?
There are 14 known substitutes for 5/8-11UNC-2B ME D TY1 GR405: 803-2177917-8-16, 2177917-08-16, 27-006 PART 16 12IN and 11 more. Substitute compatibility should be verified for your specific system.
Is 5/8-11UNC-2B ME D TY1 GR405 still available?
5/8-11UNC-2B ME D TY1 GR405 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026