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825305-283 — NUT,PLAIN,CASTELLATED,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

825305-283: NUT,PLAIN,CASTELLATED,HEXAGON.

The NUT,PLAIN,CASTELLATED,HEXAGON is a the manufacturer industrial component. Key specifications include end_item_identification: 2320015292251; MRAP BUFFALO MK2A2, part_name_assigned_by_controlling_agency: NUT HEXAGON FLANGED. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-264-0929, 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
825305-283
NSN: 5310-01-264-0929
NIINs: 012640929, 015762426
FSC: 5310 — Nuts and Washers
CAGE: 31654 — SULLAIR CORP (USA)
SPECIFICATIONS
end_item_identification2320015292251; MRAP BUFFALO MK2A2
part_name_assigned_by_controlling_agencyNUT HEXAGON FLANGED
NSN5310-01-264-0929
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 825305-283 · 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
•
WASHER OUTSIDE DIAMETER: 0.680 INCHES MAXIMUM IN
•
WIDTH ACROSS FLATS: 0.500 INCHES MAXIMUM IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
WASHER THICKNESS: 0.040 INCHES MINIMUM IN
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MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A533,GRADE A ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.312 INCHES IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.268 INCHES MINIMUM AND 0.283 INCHES MAXIMUM IN
WASHER OUTSIDE DIAMETER0.680 INCHES MAXIMUM IN
WIDTH ACROSS FLATS0.500 INCHES MAXIMUM IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
WASHER THICKNESS0.040 INCHES MINIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A533,GRADE A ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.312 INCHES IN
LOCKING FEATUREFREE-RUNNING ALL METAL DESIGN
SPECIAL FEATURESWASHER SERRATED
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
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FREQUENTLY ASKED QUESTIONS
What is 825305-283?
825305-283 is a NUT,PLAIN,CASTELLATED,HEXAGON.
What is the NSN for 825305-283?
825305-283 is cataloged in the U.S. Government catalog under NSN 5310-01-264-0929. 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.