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19AX10 — NUT,PLAIN,CASTELLATED,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

19AX10: NUT,PLAIN,CASTELLATED,HEXAGON.

The NUT,PLAIN,CASTELLATED,HEXAGON is a the manufacturer industrial component. Key specifications include nut_style: CASTELLATED, HEXAGON, nut_height: 0.890 INCHES MINIMUM AND 0.922 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNF, thread_direction: RIGHT-HAND, width_across_flats: 1.269 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-648-1847, 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
19AX10
NSN: 5310-01-648-1847
FSC: 5310 — Nuts and Washers
CAGE: 89619 — MACK TRUCKS, INC. DBA MACUNGIE OPERATIONS DIV LEHIGH VALLEY OPERATIONS (USA)
SPECIFICATIONS
nut_styleCASTELLATED, HEXAGON
nut_height0.890 INCHES MINIMUM AND 0.922 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNF
thread_directionRIGHT-HAND
width_across_flats1.269 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN
nominal_thread_size0.875 INCHES IN
end_item_identificationMACK TRUCK
part_name_assigned_by_controlling_agencyNUT PLAIN
NSN5310-01-648-1847
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 19AX10 · 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: 1.269 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN
•
THREAD SERIES: UNF
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.875 INCHES IN
•
NUT HEIGHT: 0.890 INCHES MINIMUM AND 0.922 INCHES MAXIMUM IN
•
NUT STYLE: CASTELLATED, HEXAGON
•
THREAD CLASS: 2B
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.269 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN
THREAD SERIESUNF
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.875 INCHES IN
NUT HEIGHT0.890 INCHES MINIMUM AND 0.922 INCHES MAXIMUM IN
PART NAME ASSIGNED BY CONTROLLING AGENCYNUT PLAIN
NUT STYLECASTELLATED, HEXAGON
THREAD CLASS2B
END ITEM IDENTIFICATIONMACK TRUCK
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
25050162Same 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 19AX10?
19AX10 is a NUT,PLAIN,CASTELLATED,HEXAGON.
What parts can replace 19AX10?
There is 1 known substitute for 19AX10: 25050162. Substitute compatibility should be verified for your specific system.
What is the NSN for 19AX10?
19AX10 is cataloged in the U.S. Government catalog under NSN 5310-01-648-1847. 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.