PartsTable
Technical Data Sheet
Download PDF

4303163 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

4303163: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, nut_style: INTERNAL OR EXTERNAL WRENCHING HEXAGON, thread_series: UNEF, thread_direction: RIGHT-HAND, surface_treatment: NICKEL OVERALL, width_across_flats: 1.59 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-672-1540, 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
4303163
NSN: 5310-01-672-1540
FSC: 5310 — Nuts and Washers
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
nut_styleINTERNAL OR EXTERNAL WRENCHING HEXAGON
thread_seriesUNEF
thread_directionRIGHT-HAND
surface_treatmentNICKEL OVERALL
width_across_flats1.59 INCHES NOMINAL IN
nominal_thread_size1.12 INCHES IN
end_item_identificationMRAP - M-ATV UI W/OGPK
thread_quantity_per_inch18
inside_width_across_flats1.37 INCHES NOMINAL IN
NSN5310-01-672-1540
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 4303163 · 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: 1.59 INCHES NOMINAL IN
•
THREAD SERIES: UNEF
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 1.12 INCHES IN
•
SURFACE TREATMENT: NICKEL OVERALL
•
INSIDE WIDTH ACROSS FLATS: 1.37 INCHES NOMINAL IN
•
NUT STYLE: INTERNAL OR EXTERNAL WRENCHING HEXAGON
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.59 INCHES NOMINAL IN
THREAD SERIESUNEF
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.12 INCHES IN
SURFACE TREATMENTNICKEL OVERALL
INSIDE WIDTH ACROSS FLATS1.37 INCHES NOMINAL IN
NUT STYLEINTERNAL OR EXTERNAL WRENCHING HEXAGON
END ITEM IDENTIFICATIONMRAP - M-ATV UI W/OGPK
THREAD QUANTITY PER INCH18
MATERIALALUMINUM ALLOY OVERALL
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 4303163?
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 4303163?
4303163 is a NUT,PLAIN,HEXAGON.
What is the NSN for 4303163?
4303163 is cataloged in the U.S. Government catalog under NSN 5310-01-672-1540. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 4303163

✓ 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.