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M174-187 — NUT,PLAIN,CLINCH

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

M174-187: NUT,PLAIN,CLINCH.

The NUT,PLAIN,CLINCH is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, nut_style: CLINCH, nut_height: 0.132 INCHES NOMINAL IN, nut_diameter: 0.281 INCHES NOMINAL IN, pilot_length: 0.054 INCHES MAXIMUM IN, thread_class: 2B. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-149-3863, 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
M174-187
NSN: 5310-01-149-3863
FSC: 5310 — Nuts and Washers
CAGE: 54418 — MILTOPE CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
nut_styleCLINCH
nut_height0.132 INCHES NOMINAL IN
nut_diameter0.281 INCHES NOMINAL IN
pilot_length0.054 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
pilot_diameter0.187 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.138 INCHES IN
thread_quantity_per_inch32
NSN5310-01-149-3863
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: M174-187 · 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 SERIES: UNIFIED NATIONAL COARSE (UNC)
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-P-35,TY 4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.138 INCHES IN
•
NUT DIAMETER: 0.281 INCHES NOMINAL IN
•
PILOT DIAMETER: 0.187 INCHES NOMINAL IN
•
PILOT LENGTH: 0.054 INCHES MAXIMUM IN
•
NUT HEIGHT: 0.132 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-P-35,TY 4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.138 INCHES IN
NUT DIAMETER0.281 INCHES NOMINAL IN
PILOT DIAMETER0.187 INCHES NOMINAL IN
PILOT LENGTH0.054 INCHES MAXIMUM IN
NUT HEIGHT0.132 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE OVERALL
NUT STYLECLINCH
SUBSTITUTES & CROSS-REFERENCES 1
CLS-6-32-2Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 M174-187?
M174-187 is a NUT,PLAIN,CLINCH.
What parts can replace M174-187?
There is 1 known substitute for M174-187: CLS-6-32-2. Substitute compatibility should be verified for your specific system.
What is the NSN for M174-187?
M174-187 is cataloged in the U.S. Government catalog under NSN 5310-01-149-3863. 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.