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MS21062-3K — NUT,SELF-LOCKING,PLATE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

MS21062-3K: NUT,SELF-LOCKING,PLATE.

The NUT,SELF-LOCKING,PLATE is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, nut_style: PLATE, nut_height: 0.250 INCHES MAXIMUM IN, nut_length: 1.051 INCHES MAXIMUM IN, plate_width: 0.290 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN, temp_rating: 800.0 FAHRENHEIT NOMINAL DEGF. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-779-3605, 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
MS21062-3K
NSN: 5310-00-779-3605
FSC: 5310 — Nuts and Washers
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialIRON ALLOY 660 OVERALL
nut_stylePLATE
nut_height0.250 INCHES MAXIMUM IN
nut_length1.051 INCHES MAXIMUM IN
plate_width0.290 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN
temp_rating800.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
hardness_rating49.0 ROCKWELL C MAXIMUM
locking_featurePREVAILING TORQUE ALL METAL DESIGN
plate_thickness0.032 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
NSN5310-00-779-3605
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MS21062-3K · 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: 0.032 INCHES MAXIMUM IN
•
NUT LENGTH: 1.051 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
PRECIOUS MATERIAL: SILVER
•
PLATE WIDTH: 0.290 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN
•
TEMP RATING: 800.0 FAHRENHEIT NOMINAL DEGF
•
MOUNTING HOLE ARRANGEMENT STYLE: 2 HOLES
TECHNICAL CHARACTERISTICS
PLATE THICKNESS0.032 INCHES MAXIMUM IN
NUT LENGTH1.051 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
PRECIOUS MATERIALSILVER
PLATE WIDTH0.290 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN
TEMP RATING800.0 FAHRENHEIT NOMINAL DEGF
MOUNTING HOLE ARRANGEMENT STYLE2 HOLES
HARDNESS RATING49.0 ROCKWELL C MAXIMUM
MOUNTING HOLE COUNTERSINK ANGLE98.0 DEGREES MINIMUM AND 102.0 DEGREES MAXIMUM
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 6
F2031-3BCReference document
Same NSN cross-reference
Reference document — Secondary reference
13715-02BCSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
33A27C3KSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LHTA517-2860-02BCReference document
Same NSN cross-reference
Reference document — Secondary reference
RF100C3KSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
T66C1032CBCReference document
Same NSN cross-reference
Reference document — Secondary reference
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 MS21062-3K?
MS21062-3K is a NUT,SELF-LOCKING,PLATE.
What parts can replace MS21062-3K?
There are 6 known substitutes for MS21062-3K: F2031-3BC, 13715-02BC, 33A27C3K and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21062-3K?
MS21062-3K is cataloged in the U.S. Government catalog under NSN 5310-00-779-3605. 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.