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263-021-0606 — NUT,SELF-LOCKING,CLINCH

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

263-021-0606: NUT,SELF-LOCKING,CLINCH.

The NUT,SELF-LOCKING,CLINCH is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, nut_style: CLINCH, nut_height: 0.193 INCHES MAXIMUM IN, lubrication: DRY FILM LUBRICANT, temp_rating: 45.0 FAHRENHEIT MAXIMUM DEGF, nut_diameter: 0.224 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-945-0529, 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
263-021-0606
NSN: 5310-00-945-0529
FSC: 5310 — Nuts and Washers
CAGE: 95542 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialIRON ALLOY 660 OVERALL
nut_styleCLINCH
nut_height0.193 INCHES MAXIMUM IN
lubricationDRY FILM LUBRICANT
temp_rating45.0 FAHRENHEIT MAXIMUM DEGF
nut_diameter0.224 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN
pilot_length0.057 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNJC
pilot_diameter0.190 INCHES MINIMUM AND 0.194 INCHES MAXIMUM IN
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
NSN5310-00-945-0529
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 263-021-0606 · 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: UNJC
•
TEMP RATING: 45.0 FAHRENHEIT MAXIMUM DEGF
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NUT COUNTERBORE DEPTH: 0.060 INCHES NOMINAL NUT IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.138 INCHES IN
•
NUT DIAMETER: 0.224 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
LUBRICATIONDRY FILM LUBRICANT
THREAD SERIESUNJC
TEMP RATING45.0 FAHRENHEIT MAXIMUM DEGF
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NUT COUNTERBORE DEPTH0.060 INCHES NOMINAL NUT IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.138 INCHES IN
NUT DIAMETER0.224 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN
COUNTERBORE DIAMETER0.152 INCHES MINIMUM AND 0.157 INCHES MAXIMUM NUT IN
PILOT DIAMETER0.190 INCHES MINIMUM AND 0.194 INCHES MAXIMUM IN
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 2
1814938-7Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
RMLHCFM2-2860-62Reference 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 263-021-0606?
263-021-0606 is a NUT,SELF-LOCKING,CLINCH.
What parts can replace 263-021-0606?
There are 2 known substitutes for 263-021-0606: 1814938-7, RMLHCFM2-2860-62. Substitute compatibility should be verified for your specific system.
What is the NSN for 263-021-0606?
263-021-0606 is cataloged in the U.S. Government catalog under NSN 5310-00-945-0529. 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.