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4181936001 — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

4181936001: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL NUT, nut_style: HEXAGON, nut_height: 0.168 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNF, locking_feature: NYLON INSERT. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-658-7404, 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
4181936001
NSN: 5310-01-658-7404
FSC: 5310 — Nuts and Washers
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialSTEEL NUT
nut_styleHEXAGON
nut_height0.168 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNF
locking_featureNYLON INSERT
special_featuresCOLOR: BLACK
thread_directionRIGHT-HAND
surface_treatmentNICKEL AND ZINC NUT
width_across_flats0.305 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
nominal_thread_size0.138 INCHES IN
bearing_surface_typeCHAMFERED
NSN5310-01-658-7404
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 4181936001 · 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
•
WIDTH ACROSS FLATS: 0.305 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
•
THREAD SERIES: UNF
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.138 INCHES IN
•
LOCKING FEATURE: NYLON INSERT
•
NUT HEIGHT: 0.168 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
•
SURFACE TREATMENT: NICKEL AND ZINC NUT
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.305 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
THREAD SERIESUNF
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.138 INCHES IN
LOCKING FEATURENYLON INSERT
NUT HEIGHT0.168 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
SPECIAL FEATURESCOLOR: BLACK
SURFACE TREATMENTNICKEL AND ZINC NUT
NUT STYLEHEXAGON
THREAD CLASS2B
SUBSTITUTES & CROSS-REFERENCES 1
4181936Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4181936001?
4181936001 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 4181936001?
There is 1 known substitute for 4181936001: 4181936. Substitute compatibility should be verified for your specific system.
What is the NSN for 4181936001?
4181936001 is cataloged in the U.S. Government catalog under NSN 5310-01-658-7404. 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.