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1220C0711 — NUT,SELF-LOCKING,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1220C0711: NUT,SELF-LOCKING,ROUND.

The NUT,SELF-LOCKING,ROUND is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 625 OVERALL, nut_diameter: 4.874 INCHES MINIMUM AND 4.876 INCHES MAXIMUM IN, thread_class: 3B, nut_thickness: 1.440 INCHES NOMINAL IN, thread_series: UNS, locking_feature: PREVAILING TORQUE ALL METAL DESIGN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-359-6952, 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
1220C0711
NSN: 5310-01-359-6952
FSC: 5310 — Nuts and Washers
CAGE: 03538 — LOCKHEED MARTIN CORPORATION DIV RMS (USA)
SPECIFICATIONS
materialNICKEL ALLOY 625 OVERALL
nut_diameter4.874 INCHES MINIMUM AND 4.876 INCHES MAXIMUM IN
thread_class3B
nut_thickness1.440 INCHES NOMINAL IN
thread_seriesUNS
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
nominal_thread_size3.340 INCHES IN
drive_point_diameter0.259 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
drive_point_quantity4
end_item_identificationW/S: VIRGINIA CLASS SUBMARINE, SSN-774; LOS ANGELES CLASS SSN (688); TOWED ARRAY HANDLING EQUIPMENT; SUBMARINE ACOUSTIC SONAR SYSTEMS
thread_quantity_per_inch12
NSN5310-01-359-6952
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1220C0711 · 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 SERIES: UNS
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTMB446 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 3.340 INCHES IN
•
NUT DIAMETER: 4.874 INCHES MINIMUM AND 4.876 INCHES MAXIMUM IN
•
LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN
•
NUT THICKNESS: 1.440 INCHES NOMINAL IN
•
DRIVE POINT DIAMETER: 0.259 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
THREAD SERIESUNS
MATERIAL DOCUMENT AND CLASSIFICATIONASTMB446 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE3.340 INCHES IN
NUT DIAMETER4.874 INCHES MINIMUM AND 4.876 INCHES MAXIMUM IN
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
NUT THICKNESS1.440 INCHES NOMINAL IN
DRIVE POINT DIAMETER0.259 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
DRIVE POINT QUANTITY4
THREAD CLASS3B
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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1220C0711?
1220C0711 is a NUT,SELF-LOCKING,ROUND.
What is the NSN for 1220C0711?
1220C0711 is cataloged in the U.S. Government catalog under NSN 5310-01-359-6952. This indicates validated use in U.S. government and defense supply chains.
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