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50L518 — NUT,SELF-LOCKING,PLATE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

50L518: NUT,SELF-LOCKING,PLATE.

The NUT,SELF-LOCKING,PLATE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY UNS N07001 NUT, nut_style: PLATE (FLOATING), nut_height: 0.260 INCHES MINIMUM AND 0.275 INCHES MAXIMUM IN, nut_length: 0.785 INCHES MINIMUM AND 0.800 INCHES MAXIMUM IN, plate_width: 0.461 INCHES MINIMUM AND 0.476 INCHES MAXIMUM IN, temp_rating: 1185.0 FAHRENHEIT MINIMUM AND 1215.0 FAHRENHEIT MAXIMUM DEGF. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-486-3638, 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
50L518
NSN: 5310-01-486-3638
FSC: 5310 — Nuts and Washers
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialNICKEL ALLOY UNS N07001 NUT
nut_stylePLATE (FLOATING)
nut_height0.260 INCHES MINIMUM AND 0.275 INCHES MAXIMUM IN
nut_length0.785 INCHES MINIMUM AND 0.800 INCHES MAXIMUM IN
plate_width0.461 INCHES MINIMUM AND 0.476 INCHES MAXIMUM IN
temp_rating1185.0 FAHRENHEIT MINIMUM AND 1215.0 FAHRENHEIT MAXIMUM DEGF
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
locking_featurePREVAILING TORQUE ALL METAL DESIGN
plate_thickness0.107 INCHES MINIMUM AND 0.137 INCHES MAXIMUM IN
special_featuresNUT, PLATE SELF LOCKING-AXIAL STRENGTH LBS MIN 5,868, WEIGHT LBS / 100 MAX .65
thread_directionRIGHT-HAND
NSN5310-01-486-3638
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 50L518 · 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
•
PLATE THICKNESS: 0.107 INCHES MINIMUM AND 0.137 INCHES MAXIMUM IN
•
NUT LENGTH: 0.785 INCHES MINIMUM AND 0.800 INCHES MAXIMUM IN
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
PLATE WIDTH: 0.461 INCHES MINIMUM AND 0.476 INCHES MAXIMUM IN
•
TEMP RATING: 1185.0 FAHRENHEIT MINIMUM AND 1215.0 FAHRENHEIT MAXIMUM DEGF
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE SHELL
•
NUT COUNTERBORE DEPTH: 0.062 INCHES MINIMUM AND 0.077 INCHES MAXIMUM NUT IN
TECHNICAL CHARACTERISTICS
PLATE THICKNESS0.107 INCHES MINIMUM AND 0.137 INCHES MAXIMUM IN
NUT LENGTH0.785 INCHES MINIMUM AND 0.800 INCHES MAXIMUM IN
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
PLATE WIDTH0.461 INCHES MINIMUM AND 0.476 INCHES MAXIMUM IN
TEMP RATING1185.0 FAHRENHEIT MINIMUM AND 1215.0 FAHRENHEIT MAXIMUM DEGF
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5525 ASSN STD SINGLE MATERIAL RESPONSE SHELL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5544 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5709 ASSN STD 2ND MATERIAL RESPONSE NUT
NUT COUNTERBORE DEPTH0.062 INCHES MINIMUM AND 0.077 INCHES MAXIMUM NUT IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES 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 3
50L517Reference document
Same NSN cross-reference
Reference document — Secondary reference
MF52234-4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
50L516Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 50L518?
50L518 is a NUT,SELF-LOCKING,PLATE.
What parts can replace 50L518?
There are 3 known substitutes for 50L518: 50L517, MF52234-4, 50L516. Substitute compatibility should be verified for your specific system.
What is the NSN for 50L518?
50L518 is cataloged in the U.S. Government catalog under NSN 5310-01-486-3638. 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.