PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 213761-1
213761-1 ✓ 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 NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, nut_style: HEXAGON, nut_height: 0.422 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNF, thread_direction: RIGHT-HAND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-214-6492, 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
213761-1
NSN: 5310-01-214-6492
FSC: 5310
CAGE: 16848 — LOCKHEED MARTIN SIPPICAN, INC. DIV LOCKHEED MARTIN MARION (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
nut_styleHEXAGON
nut_height0.422 INCHES NOMINAL IN
thread_class2B
thread_seriesUNF
thread_directionRIGHT-HAND
width_across_flats1.125 INCHES NOMINAL IN
nominal_thread_size0.750 INCHES IN
bearing_surface_typeCHAMFERED
thread_quantity_per_inch16
NSN5310-01-214-6492
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 213761-1 · 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
•
WIDTH ACROSS FLATS: 1.125 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 16
•
NOMINAL THREAD SIZE: 0.750 INCHES IN
•
BEARING SURFACE TYPE: CHAMFERED
•
THREAD SERIES: UNF
•
THREAD CLASS: 2B
•
NUT HEIGHT: 0.422 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
WIDTH ACROSS FLATS1.125 INCHES NOMINAL IN
THREAD QUANTITY PER INCH16
NOMINAL THREAD SIZE0.750 INCHES IN
BEARING SURFACE TYPECHAMFERED
THREAD SERIESUNF
THREAD CLASS2B
NUT HEIGHT0.422 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
NUT STYLEHEXAGON
MATERIALCOPPER ALLOY OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
76318Interchangeable
interchangeable cross-reference
interchangeable
80951Interchangeable
interchangeable cross-reference
interchangeable
80952Interchangeable
interchangeable cross-reference
interchangeable
83307Interchangeable
interchangeable cross-reference
interchangeable
HI-SPOT BLUEInterchangeable
interchangeable cross-reference
interchangeable
5M1005-18R1S6Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 213761-1?
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 213761-1?
213761-1 is a NUT,PLAIN,HEXAGON.
What parts can replace 213761-1?
There are 13 known substitutes for 213761-1: 76318, 80951, 80952 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 213761-1?
213761-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-214-6492. This indicates validated use in U.S. government and defense supply chains.
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 — 213761-1

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