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10121677 — NUT,SELF-LOCKING,PLATE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

10121677: 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, lubrication: DRY FILM LUBRICANT, plate_width: 0.290 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-778-9161, 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
10121677
NSN: 5310-00-778-9161
FSC: 5310 — Nuts and Washers
CAGE: A486G — NIMIKKEISTOKESKUS NCB FINLAND (FIN)
SPECIFICATIONS
materialIRON ALLOY 660 OVERALL
nut_stylePLATE
nut_height0.250 INCHES MAXIMUM IN
nut_length1.051 INCHES MAXIMUM IN
lubricationDRY FILM LUBRICANT
plate_width0.290 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN
temp_rating450.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNJC
hardness_rating49.0 ROCKWELL C MAXIMUM
locking_featurePREVAILING TORQUE ALL METAL DESIGN
plate_thickness0.032 INCHES MAXIMUM IN
NSN5310-00-778-9161
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 10121677 · 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
•
PLATE THICKNESS: 0.032 INCHES MAXIMUM IN
•
NUT LENGTH: 1.051 INCHES MAXIMUM IN
•
THREAD SERIES: UNJC
•
PLATE WIDTH: 0.290 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN
•
TEMP RATING: 450.0 FAHRENHEIT NOMINAL DEGF
•
MOUNTING HOLE ARRANGEMENT STYLE: 2 HOLES
•
HARDNESS RATING: 49.0 ROCKWELL C MAXIMUM
TECHNICAL CHARACTERISTICS
LUBRICATIONDRY FILM LUBRICANT
PLATE THICKNESS0.032 INCHES MAXIMUM IN
NUT LENGTH1.051 INCHES MAXIMUM IN
THREAD SERIESUNJC
PLATE WIDTH0.290 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN
TEMP RATING450.0 FAHRENHEIT NOMINAL DEGF
MOUNTING HOLE ARRANGEMENT STYLE2 HOLES
HARDNESS RATING49.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MOUNTING HOLE DIAMETER0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 6
RF100C08MSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
RMLHTA517-2860-82Reference document
Same NSN cross-reference
Reference document — Secondary reference
T66C832CMSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
13715E-82Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
MS21062L08Reference document
Same NSN cross-reference
Reference document — Secondary reference
23785Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 10121677?
10121677 is a NUT,SELF-LOCKING,PLATE.
What parts can replace 10121677?
There are 6 known substitutes for 10121677: RF100C08M, RMLHTA517-2860-82, T66C832CM and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 10121677?
10121677 is cataloged in the U.S. Government catalog under NSN 5310-00-778-9161. 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.