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8591637-8 — NUT,PLAIN,CLINCH

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

8591637-8: NUT,PLAIN,CLINCH.

The NUT,PLAIN,CLINCH is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nut_style: CLINCH, nut_height: 0.177 INCHES NOMINAL IN, nut_diameter: 0.340 INCHES NOMINAL IN, pilot_length: 0.087 INCHES NOMINAL IN, pilot_diameter: 0.249 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-644-0683, 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
8591637-8
NSN: 5310-01-644-0683
FSC: 5310 — Nuts and Washers
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
nut_styleCLINCH
nut_height0.177 INCHES NOMINAL IN
nut_diameter0.340 INCHES NOMINAL IN
pilot_length0.087 INCHES NOMINAL IN
pilot_diameter0.249 INCHES NOMINAL IN
thread_directionRIGHT-HAND
nominal_thread_size0.190 INCHES IN
end_item_identificationMK110 MOD OS
thread_quantity_per_inch32
part_name_assigned_by_controlling_agencySELF-CLINCHING NUT
NSN5310-01-644-0683
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 8591637-8 · 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
•
NOMINAL THREAD SIZE: 0.190 INCHES IN
•
NUT DIAMETER: 0.340 INCHES NOMINAL IN
•
PILOT DIAMETER: 0.249 INCHES NOMINAL IN
•
PILOT LENGTH: 0.087 INCHES NOMINAL IN
•
NUT HEIGHT: 0.177 INCHES NOMINAL IN
•
NUT STYLE: CLINCH
TECHNICAL CHARACTERISTICS
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.190 INCHES IN
NUT DIAMETER0.340 INCHES NOMINAL IN
PILOT DIAMETER0.249 INCHES NOMINAL IN
PILOT LENGTH0.087 INCHES NOMINAL IN
NUT HEIGHT0.177 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYSELF-CLINCHING NUT
NUT STYLECLINCH
END ITEM IDENTIFICATIONMK110 MOD OS
THREAD QUANTITY PER INCH32
SUBSTITUTES & CROSS-REFERENCES 2
8591637Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
CLSS-032-3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 8591637-8?
8591637-8 is a NUT,PLAIN,CLINCH.
What parts can replace 8591637-8?
There are 2 known substitutes for 8591637-8: 8591637, CLSS-032-3. Substitute compatibility should be verified for your specific system.
What is the NSN for 8591637-8?
8591637-8 is cataloged in the U.S. Government catalog under NSN 5310-01-644-0683. 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.