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5533178 — NUT,PLAIN,CASTELLATED,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

5533178: NUT,PLAIN,CASTELLATED,HEXAGON.

The NUT,PLAIN,CASTELLATED,HEXAGON is a the manufacturer industrial component. Key specifications include nut_style: CASTELLATED, HEXAGON, nut_height: 1.530 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNF, width_across_flats: 2.000 INCHES NOMINAL IN, nominal_thread_size: 1.250 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-325-5230, 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
5533178
NSN: 5310-01-325-5230
FSC: 5310 — Nuts and Washers
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
nut_styleCASTELLATED, HEXAGON
nut_height1.530 INCHES NOMINAL IN
thread_class3B
thread_seriesUNF
width_across_flats2.000 INCHES NOMINAL IN
nominal_thread_size1.250 INCHES IN
supplementary_featuresORDALT 15400
thread_quantity_per_inch12
NSN5310-01-325-5230
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5533178 · 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: 2.000 INCHES NOMINAL IN
•
THREAD SERIES: UNF
•
SUPPLEMENTARY FEATURES: ORDALT 15400
•
NOMINAL THREAD SIZE: 1.250 INCHES IN
•
NUT HEIGHT: 1.530 INCHES NOMINAL IN
•
NUT STYLE: CASTELLATED, HEXAGON
•
THREAD CLASS: 3B
•
THREAD QUANTITY PER INCH: 12
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS2.000 INCHES NOMINAL IN
THREAD SERIESUNF
SUPPLEMENTARY FEATURESORDALT 15400
NOMINAL THREAD SIZE1.250 INCHES IN
NUT HEIGHT1.530 INCHES NOMINAL IN
NUT STYLECASTELLATED, HEXAGON
THREAD CLASS3B
THREAD QUANTITY PER INCH12
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
PL5533178-001Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5533178?
5533178 is a NUT,PLAIN,CASTELLATED,HEXAGON.
What parts can replace 5533178?
There is 1 known substitute for 5533178: PL5533178-001. Substitute compatibility should be verified for your specific system.
What is the NSN for 5533178?
5533178 is cataloged in the U.S. Government catalog under NSN 5310-01-325-5230. 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.