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E6889318 — NUT,SELF-LOCKING,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

E6889318: NUT,SELF-LOCKING,ROUND.

The NUT,SELF-LOCKING,ROUND is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: ROUND, nut_diameter: 2.028 INCHES MINIMUM AND 2.032 INCHES MAXIMUM IN, thread_class: 3B, nut_thickness: 0.425 INCHES MINIMUM AND 0.435 INCHES MAXIMUM IN, thread_series: UNJEF. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-196-8563, 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
E6889318
NSN: 5310-01-196-8563
FSC: 5310 — Nuts and Washers
CAGE: 22819 — BOEING DISTRIBUTION, INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleROUND
nut_diameter2.028 INCHES MINIMUM AND 2.032 INCHES MAXIMUM IN
thread_class3B
nut_thickness0.425 INCHES MINIMUM AND 0.435 INCHES MAXIMUM IN
thread_seriesUNJEF
hardness_rating22.00 ROCKWELL C MINIMUM AND 28.00 ROCKWELL C MAXIMUM
thread_directionRIGHT-HAND
drive_point_depth0.238 INCHES MINIMUM AND 0.242 INCHES MAXIMUM IN
nominal_thread_size1.5625 INCHES IN
drive_point_quantity20
end_item_identificationOH-58 TURBINE ENGINE (&703-AD-700)
NSN5310-01-196-8563
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: E6889318 · 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 SERIES: UNJEF
•
HARDNESS RATING: 22.00 ROCKWELL C MINIMUM AND 28.00 ROCKWELL C MAXIMUM
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 1.5625 INCHES IN
•
NUT DIAMETER: 2.028 INCHES MINIMUM AND 2.032 INCHES MAXIMUM IN
•
DRIVE POINT DEPTH: 0.238 INCHES MINIMUM AND 0.242 INCHES MAXIMUM IN
•
NUT THICKNESS: 0.425 INCHES MINIMUM AND 0.435 INCHES MAXIMUM IN
•
DRIVE POINT QUANTITY: 20
TECHNICAL CHARACTERISTICS
THREAD SERIESUNJEF
HARDNESS RATING22.00 ROCKWELL C MINIMUM AND 28.00 ROCKWELL C MAXIMUM
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.5625 INCHES IN
NUT DIAMETER2.028 INCHES MINIMUM AND 2.032 INCHES MAXIMUM IN
DRIVE POINT DEPTH0.238 INCHES MINIMUM AND 0.242 INCHES MAXIMUM IN
NUT THICKNESS0.425 INCHES MINIMUM AND 0.435 INCHES MAXIMUM IN
DRIVE POINT QUANTITY20
NUT STYLEROUND
THREAD CLASS3B
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 1
6889318Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is E6889318?
E6889318 is a NUT,SELF-LOCKING,ROUND.
What parts can replace E6889318?
There is 1 known substitute for E6889318: 6889318. Substitute compatibility should be verified for your specific system.
What is the NSN for E6889318?
E6889318 is cataloged in the U.S. Government catalog under NSN 5310-01-196-8563. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.