03A186-3L — NUT,SELF-LOCKING,CASTELLATED,HEX

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

03A186-3L: NUT,SELF-LOCKING,CASTELLATED,HEX.

NUT,SELF-LOCKING,CASTELLATED,HEX. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nut_style: CASTELLATED, HEXAGON, nut_height: 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), locking_feature: PREVAILING TORQUE ALL METAL DESIGN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-182-6136, 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

03A186-3L

NSN: 5310-01-182-6136
FSC: 5310 — Nuts and Washers
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)

SPECIFICATIONS

material	STEEL CORROSION RESISTING OVERALL
nut_style	CASTELLATED, HEXAGON
nut_height	0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
thread_class	3B
thread_series	UNIFIED NATIONAL JOINT FINE (UNJF)
locking_feature	PREVAILING TORQUE ALL METAL DESIGN
thread_direction	RIGHT-HAND
width_across_flats	0.243 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN
nominal_thread_size	0.190 INCHES IN
bearing_surface_type	FLAT
thread_quantity_per_inch	32
material_document_and_classification	AMS5735 ASSN STD 1ST MATERIAL RESPONSE OR AMS5737 ASSN STD 2ND MATERIAL RESPONSE OVERALL
NSN	5310-01-182-6136

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.243 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN

•

THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS5735 ASSN STD 1ST MATERIAL RESPONSE OR AMS5737 ASSN STD 2ND MATERIAL RESPONSE OVERALL

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.190 INCHES IN

•

LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN

•

NUT HEIGHT: 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN

•

NUT STYLE: CASTELLATED, HEXAGON

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.243 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN
THREAD SERIES	UNIFIED NATIONAL JOINT FINE (UNJF)
MATERIAL DOCUMENT AND CLASSIFICATION	AMS5735 ASSN STD 1ST MATERIAL RESPONSE OR AMS5737 ASSN STD 2ND MATERIAL RESPONSE OVERALL
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.190 INCHES IN
LOCKING FEATURE	PREVAILING TORQUE ALL METAL DESIGN
NUT HEIGHT	0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
NUT STYLE	CASTELLATED, HEXAGON
THREAD CLASS	3B
THREAD QUANTITY PER INCH	32

SUBSTITUTES & CROSS-REFERENCES 3

9109M45P05Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

SME9925-3Reference document

Same NSN cross-reference

Reference document — Secondary reference

9109M45P01Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 03A186-3L?

03A186-3L is a NUT,SELF-LOCKING,CASTELLATED,HEX.

What parts can replace 03A186-3L?

There are 3 known substitutes for 03A186-3L: 9109M45P05, SME9925-3, 9109M45P01. Substitute compatibility should be verified for your specific system.

What is the NSN for 03A186-3L?

03A186-3L is cataloged in the U.S. Government catalog under NSN 5310-01-182-6136. This indicates validated use in U.S. government and defense supply chains.

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