PartsTable
Technical Data Sheet
PartsTable / COMPONENT / MS51967-5-5/16INX18-UNC-2BX1/2IN
MS51967-5-5/16INX18-UNC-2BX1/2IN ✓ 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 MS51967-5-5/16INX18-UNC-2BX1/2IN is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-880-7744, 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
MS51967-5-5/16INX18-UNC-2BX1/2IN
NSN: 5310-00-880-7744
FSC: 5310
CAGE: 80244 — GENERAL SERVICES ADMINISTRATION FEDERAL SUPPLY SERVICE (USA)
SPECIFICATIONS
Part NumberMS51967-5-5/16INX18-UNC-2BX1/2IN
NSN5310-00-880-7744
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MS51967-5-5/16INX18-UNC-2BX1/2IN · 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
•
NOMINAL THREAD SIZE: 0.312 INCHES IN
•
WIDTH ACROSS FLATS: 0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
THREAD QUANTITY PER INCH: 18
•
HARDNESS RATING: 121.0 BRINELL STANDARD MINIMUM
•
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
•
SURFACE TREATMENT: ZINC OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.312 INCHES IN
WIDTH ACROSS FLATS0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
END ITEM IDENTIFICATIONMRAP BUFFALO MK2A2
THREAD QUANTITY PER INCH18
HARDNESS RATING121.0 BRINELL STANDARD MINIMUM
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
SURFACE TREATMENTZINC OVERALL
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
80014Interchangeable
interchangeable cross-reference
interchangeable
33797S7Interchangeable
interchangeable cross-reference
interchangeable
MS35690-505Interchangeable
interchangeable cross-reference
interchangeable
NUMBER 21NTU-04 0Interchangeable
interchangeable cross-reference
interchangeable
07-0652Interchangeable
interchangeable cross-reference
interchangeable
M09-0103Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy MS51967-5-5/16INX18-UNC-2BX1/2IN?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is MS51967-5-5/16INX18-UNC-2BX1/2IN?
MS51967-5-5/16INX18-UNC-2BX1/2IN is a MS51967-5-5/16INX18-UNC-2BX1/2IN.
What parts can replace MS51967-5-5/16INX18-UNC-2BX1/2IN?
There are 29 known substitutes for MS51967-5-5/16INX18-UNC-2BX1/2IN: 80014, 33797S7, MS35690-505 and 26 more. Substitute compatibility should be verified for your specific system.
Is MS51967-5-5/16INX18-UNC-2BX1/2IN still available?
MS51967-5-5/16INX18-UNC-2BX1/2IN is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — MS51967-5-5/16INX18-UNC-2BX1/2IN

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026