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42N(187)-FL — NUT,PLAIN,CLINCH

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

42N(187)-FL: NUT,PLAIN,CLINCH.

The NUT,PLAIN,CLINCH is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, nut_style: CLINCHCLINCH, nut_height: 0.172 INCHES MINIMUM AND 0.172 INCHES MINIMUM AND 0.182 INCHES MAXIMUM0.182 INCHES MAXIMUM IN, thread_class: 2B2B, thread_series: UNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC), pilot_diameter: 0.197 INCHES MINIMUM AND 0.197 INCHES MINIMUM AND 0.201 INCHES MAXIMUM0.201 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-260-8942, 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
42N(187)-FL
NSN: 5310-01-260-8942
FSC: 5310 — Nuts and Washers
CAGE: 86577 — PRECISION METAL PRODUCTS CO (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
nut_styleCLINCHCLINCH
nut_height0.172 INCHES MINIMUM AND 0.172 INCHES MINIMUM AND 0.182 INCHES MAXIMUM0.182 INCHES MAXIMUM IN
thread_class2B2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC)
pilot_diameter0.197 INCHES MINIMUM AND 0.197 INCHES MINIMUM AND 0.201 INCHES MAXIMUM0.201 INCHES MAXIMUM IN
thread_directionRIGHT-HANDRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_across_flats0.245 INCHES MINIMUM AND 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM0.255 INCHES MAXIMUM IN
nominal_thread_size0.086 INCHES0.086 INCHES IN
thread_quantity_per_inch5656
material_document_and_classificationASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-260-8942
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 42N(187)-FL · 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: 0.245 INCHES MINIMUM AND 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM0.255 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC)
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HANDRIGHT-HAND
•
NOMINAL THREAD SIZE: 0.086 INCHES0.086 INCHES IN
•
PILOT DIAMETER: 0.197 INCHES MINIMUM AND 0.197 INCHES MINIMUM AND 0.201 INCHES MAXIMUM0.201 INCHES MAXIMUM IN
•
NUT HEIGHT: 0.172 INCHES MINIMUM AND 0.172 INCHES MINIMUM AND 0.182 INCHES MAXIMUM0.182 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.245 INCHES MINIMUM AND 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM0.255 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC)
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HANDRIGHT-HAND
NOMINAL THREAD SIZE0.086 INCHES0.086 INCHES IN
PILOT DIAMETER0.197 INCHES MINIMUM AND 0.197 INCHES MINIMUM AND 0.201 INCHES MAXIMUM0.201 INCHES MAXIMUM IN
NUT HEIGHT0.172 INCHES MINIMUM AND 0.172 INCHES MINIMUM AND 0.182 INCHES MAXIMUM0.182 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECTNAVY SPECIAL PROJECT
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
610064P64Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 42N(187)-FL?
42N(187)-FL is a NUT,PLAIN,CLINCH.
What parts can replace 42N(187)-FL?
There is 1 known substitute for 42N(187)-FL: 610064P64. Substitute compatibility should be verified for your specific system.
What is the NSN for 42N(187)-FL?
42N(187)-FL is cataloged in the U.S. Government catalog under NSN 5310-01-260-8942. 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.