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UN0228078 — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

UN0228078: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: ALUMINUM OVERALL, nut_style: INTERNAL OR EXTERNAL WRENCHING HEXAGON, thread_series: UN, thread_direction: LEFT-HAND, nominal_thread_size: 0.125 INCHES IN, bearing_surface_type: FLAT. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-683-0281, 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
UN0228078
NSN: 5310-01-683-0281
FSC: 5310 — Nuts and Washers
CAGE: Z11Q2 — UNITED FASTENERS AUSTRALIA PTY LIMITED (AUS)
SPECIFICATIONS
materialALUMINUM OVERALL
nut_styleINTERNAL OR EXTERNAL WRENCHING HEXAGON
thread_seriesUN
thread_directionLEFT-HAND
nominal_thread_size0.125 INCHES IN
bearing_surface_typeFLAT
NSN5310-01-683-0281
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: UN0228078 · 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: UN
•
THREAD DIRECTION: LEFT-HAND
•
NOMINAL THREAD SIZE: 0.125 INCHES IN
•
NUT STYLE: INTERNAL OR EXTERNAL WRENCHING HEXAGON
•
MATERIAL: ALUMINUM OVERALL
•
BEARING SURFACE TYPE: FLAT
TECHNICAL CHARACTERISTICS
THREAD SERIESUN
THREAD DIRECTIONLEFT-HAND
NOMINAL THREAD SIZE0.125 INCHES IN
NUT STYLEINTERNAL OR EXTERNAL WRENCHING HEXAGON
MATERIALALUMINUM OVERALL
BEARING SURFACE TYPEFLAT
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
NNZSC522-01Same 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 UN0228078?
UN0228078 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace UN0228078?
There is 1 known substitute for UN0228078: NNZSC522-01. Substitute compatibility should be verified for your specific system.
What is the NSN for UN0228078?
UN0228078 is cataloged in the U.S. Government catalog under NSN 5310-01-683-0281. 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.