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94831A615 — NUT,PLAIN,EXTENDED WASHER,HEXAGO

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

94831A615: NUT,PLAIN,EXTENDED WASHER,HEXAGO.

NUT,PLAIN,EXTENDED WASHER,HEXAGO. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, thread_series: UNIFIED NATIONAL COARSE (UNC), overall_height: 0.234 INCHES NOMINAL IN, hardness_rating: 44.0 ROCKWELL C MAXIMUM, special_features: SEATING FACE OF FLANGE WASHER IS SERRATED. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-567-1382, 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
94831A615
NSN: 5310-01-567-1382
FSC: 5310 — Nuts and Washers
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
thread_seriesUNIFIED NATIONAL COARSE (UNC)
overall_height0.234 INCHES NOMINAL IN
hardness_rating44.0 ROCKWELL C MAXIMUM
special_featuresSEATING FACE OF FLANGE WASHER IS SERRATED
thread_directionRIGHT-HAND
washer_thickness0.096 INCHES NOMINAL IN
surface_treatmentZINC OVERALL
width_across_flats0.438 INCHES NOMINAL IN
nominal_thread_size0.216 INCHES IN
end_item_identificationEND ITEM NSN: 3950-20-003-8784
NSN5310-01-567-1382
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 94831A615 · 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: 0.594 INCHES NOMINAL IN
•
WIDTH ACROSS FLATS: 0.438 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
HARDNESS RATING: 44.0 ROCKWELL C MAXIMUM
•
WASHER THICKNESS: 0.096 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.216 INCHES IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.234 INCHES NOMINAL IN
WASHER OUTSIDE DIAMETER0.594 INCHES NOMINAL IN
WIDTH ACROSS FLATS0.438 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
HARDNESS RATING44.0 ROCKWELL C MAXIMUM
WASHER THICKNESS0.096 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.216 INCHES IN
SPECIAL FEATURESSEATING FACE OF FLANGE WASHER IS SERRATED
SURFACE TREATMENTZINC 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 1
ZLB21MCSame 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 94831A615?
94831A615 is a NUT,PLAIN,EXTENDED WASHER,HEXAGO.
What parts can replace 94831A615?
There is 1 known substitute for 94831A615: ZLB21MC. Substitute compatibility should be verified for your specific system.
What is the NSN for 94831A615?
94831A615 is cataloged in the U.S. Government catalog under NSN 5310-01-567-1382. 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.