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Technical Data Sheet
PartsTable / COMPONENT / 984051
984051 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

NUT,SELF-LOCKING,EXTENDED WASHER. Key specifications include material: PLASTIC POLYCARBONATE, end_item_identification: C17A ACFT, part_name_assigned_by_controlling_agency: SPACER. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-807-1477, 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
984051
NSN: 5310-00-807-1477
FSC: 5310
CAGE: F0754 — SAFRAN MARTIN-BAKER FRANCE (FRA)
SPECIFICATIONS
materialPLASTIC POLYCARBONATE
end_item_identificationC17A ACFT
part_name_assigned_by_controlling_agencySPACER
NSN5310-00-807-1477
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 984051 · 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
•
THREAD QUANTITY PER INCH: 24
•
LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN
•
NUT STYLE: HEXAGON
•
LUBRICATION: DRY FILM LUBRICANT
•
WASHER THICKNESS: 0.030 INCHES MINIMUM IN
•
NOMINAL THREAD SIZE: 0.375 INCHES IN
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
•
THREAD CLASS: 3B
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH24
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
NUT STYLEHEXAGON
LUBRICATIONDRY FILM LUBRICANT
WASHER THICKNESS0.030 INCHES MINIMUM IN
NOMINAL THREAD SIZE0.375 INCHES IN
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
WASHER OUTSIDE DIAMETER0.620 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
H146Interchangeable
interchangeable cross-reference
interchangeable
B128Interchangeable
interchangeable cross-reference
interchangeable
77924Interchangeable
interchangeable cross-reference
interchangeable
BAF8Interchangeable
interchangeable cross-reference
interchangeable
874025-11Interchangeable
interchangeable cross-reference
interchangeable
984051Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 984051?
984051 is a NUT,SELF-LOCKING,EXTENDED WASHER.
What parts can replace 984051?
There are 13 known substitutes for 984051: H146, B128, 77924 and 10 more. Substitute compatibility should be verified for your specific system.
Is 984051 still available?
984051 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026