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70-200522-0646 — NUT,SELF-LOCKING,CLINCH

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

70-200522-0646: NUT,SELF-LOCKING,CLINCH.

The NUT,SELF-LOCKING,CLINCH is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nut_style: CLINCH, nut_height: 0.235 INCHES NOMINAL IN, lubrication: DRY FILM LUBRICANT, temp_rating: 900.0 FAHRENHEIT NOMINAL DEGF, nut_diameter: 0.312 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-073-8185, 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
70-200522-0646
NSN: 5310-00-073-8185
FSC: 5310 — Nuts and Washers
CAGE: 11293 — GTE GOVERNMENT SYSTEMS CORP STRATEGIC SYSTEMS DIV (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
nut_styleCLINCH
nut_height0.235 INCHES NOMINAL IN
lubricationDRY FILM LUBRICANT
temp_rating900.0 FAHRENHEIT NOMINAL DEGF
nut_diameter0.312 INCHES MAXIMUM IN
pilot_length0.040 INCHES NOMINAL IN
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
pilot_diameter0.249 INCHES MAXIMUM IN
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
NSN5310-00-073-8185
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 70-200522-0646 · 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
•
LUBRICATION: DRY FILM LUBRICANT
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
TEMP RATING: 900.0 FAHRENHEIT NOMINAL DEGF
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A286 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.138 INCHES IN
•
NUT DIAMETER: 0.312 INCHES MAXIMUM IN
•
PILOT DIAMETER: 0.249 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
LUBRICATIONDRY FILM LUBRICANT
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
TEMP RATING900.0 FAHRENHEIT NOMINAL DEGF
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A286 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.138 INCHES IN
NUT DIAMETER0.312 INCHES MAXIMUM IN
PILOT DIAMETER0.249 INCHES MAXIMUM IN
PILOT LENGTH0.040 INCHES NOMINAL IN
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
SUBSTITUTES & CROSS-REFERENCES 5
961353Reference document
Same NSN cross-reference
Reference document — Secondary reference
1148318Reference document
Same NSN cross-reference
Reference document — Secondary reference
MF7231-06Reference document
Same NSN cross-reference
Reference document — Secondary reference
1786950-2Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
ST33C100-632Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 70-200522-0646?
70-200522-0646 is a NUT,SELF-LOCKING,CLINCH.
What parts can replace 70-200522-0646?
There are 5 known substitutes for 70-200522-0646: 961353, 1148318, MF7231-06 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 70-200522-0646?
70-200522-0646 is cataloged in the U.S. Government catalog under NSN 5310-00-073-8185. 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.