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941AS121 — NUT,SELF-LOCKING,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

941AS121: NUT,SELF-LOCKING,ROUND.

The NUT,SELF-LOCKING,ROUND is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: ROUND, nut_diameter: 5.250 INCHES NOMINAL IN, thread_class: 2B, nut_thickness: 0.500 INCHES NOMINAL IN, locking_feature: PREVAILING TORQUE ALL METAL DESIGN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-462-2247, 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
941AS121
NSN: 5310-01-462-2247
FSC: 5310 — Nuts and Washers
CAGE: 05060 — R.E. ATCKISON CO., INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleROUND
nut_diameter5.250 INCHES NOMINAL IN
thread_class2B
nut_thickness0.500 INCHES NOMINAL IN
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
surface_treatmentPHOSPHATE OVERALL
nominal_thread_size0.250 INCHES IN
NSN5310-01-462-2247
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 941AS121 · 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
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
NUT DIAMETER: 5.250 INCHES NOMINAL IN
•
LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN
•
NUT THICKNESS: 0.500 INCHES NOMINAL IN
•
SURFACE TREATMENT: PHOSPHATE OVERALL
•
NUT STYLE: ROUND
•
THREAD CLASS: 2B
TECHNICAL CHARACTERISTICS
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES IN
NUT DIAMETER5.250 INCHES NOMINAL IN
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
NUT THICKNESS0.500 INCHES NOMINAL IN
SURFACE TREATMENTPHOSPHATE OVERALL
NUT STYLEROUND
THREAD CLASS2B
MATERIALSTEEL 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
Shelf-life managedAcquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 941AS121?
941AS121 is a NUT,SELF-LOCKING,ROUND.
What is the NSN for 941AS121?
941AS121 is cataloged in the U.S. Government catalog under NSN 5310-01-462-2247. 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.