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BMN4122A-12 — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

BMN4122A-12: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include nut_style: HEXAGON, locking_feature: PREVAILING TORQUE ALL METAL DESIGN, surface_treatment: CADMIUM AND CHROMATE OVERALL, bearing_surface_type: CHAMFERED OR WASHER FACED, surface_treatment_document_and_classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-189-3786, 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
BMN4122A-12
NSN: 5310-01-189-3786
FSC: 5310 — Nuts and Washers
CAGE: 17446 — HUCK INTERNATIONAL, INC (USA)
SPECIFICATIONS
nut_styleHEXAGON
locking_featurePREVAILING TORQUE ALL METAL DESIGN
surface_treatmentCADMIUM AND CHROMATE OVERALL
bearing_surface_typeCHAMFERED OR WASHER FACED
surface_treatment_document_and_classificationQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-189-3786
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: BMN4122A-12 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
•
NUT STYLE: HEXAGON
•
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
NUT STYLEHEXAGON
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BMN4122A-12?
BMN4122A-12 is a NUT,SELF-LOCKING,HEXAGON.
What is the NSN for BMN4122A-12?
BMN4122A-12 is cataloged in the U.S. Government catalog under NSN 5310-01-189-3786. 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.