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987644-4 — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

987644-4: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include nut_style: HEXAGON, locking_feature: PREVAILING TORQUE ALL NONMETALLIC DESIGN, special_features: 7/16 IN PLATED NYLOCK COARSE THREAD HEX NUT IN, thread_direction: RIGHT-HAND, end_item_identification: F15SE/82F NSN 1730-01-326-9755, part_name_assigned_by_controlling_agency: NUT, SKIDPLATE STUD. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-510-3261, 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
987644-4
NSN: 5310-01-510-3261
FSC: 5310 — Nuts and Washers
CAGE: 17098 — YODER BRAKE & MANUFACTURING CO (USA)
SPECIFICATIONS
nut_styleHEXAGON
locking_featurePREVAILING TORQUE ALL NONMETALLIC DESIGN
special_features7/16 IN PLATED NYLOCK COARSE THREAD HEX NUT IN
thread_directionRIGHT-HAND
end_item_identificationF15SE/82F NSN 1730-01-326-9755
part_name_assigned_by_controlling_agencyNUT, SKIDPLATE STUD
NSN5310-01-510-3261
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 987644-4 · 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 DIRECTION: RIGHT-HAND
•
LOCKING FEATURE: PREVAILING TORQUE ALL NONMETALLIC DESIGN
•
NUT STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
THREAD DIRECTIONRIGHT-HAND
LOCKING FEATUREPREVAILING TORQUE ALL NONMETALLIC DESIGN
SPECIAL FEATURES7/16 IN PLATED NYLOCK COARSE THREAD HEX NUT IN
PART NAME ASSIGNED BY CONTROLLING AGENCYNUT, SKIDPLATE STUD
NUT STYLEHEXAGON
END ITEM IDENTIFICATIONF15SE/82F NSN 1730-01-326-9755
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 1
H217828Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 987644-4?
987644-4 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 987644-4?
There is 1 known substitute for 987644-4: H217828. Substitute compatibility should be verified for your specific system.
What is the NSN for 987644-4?
987644-4 is cataloged in the U.S. Government catalog under NSN 5310-01-510-3261. 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.