LLNH-18 — NUT,SELF-LOCKING,EXTENDED WASHER

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

LLNH-18: NUT,SELF-LOCKING,EXTENDED WASHER.

NUT,SELF-LOCKING,EXTENDED WASHER. Key specifications include material: PLASTIC POLYAMIDE NYLON LOCKING INSERT, nut_style: DOUBLE HEXAGON, thread_class: 2B, thread_series: UNF, overall_height: 1.327 INCHES MAXIMUM IN, locking_feature: PREVAILING TORQUE ALL NONMETALLIC DESIGN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-270-3229, 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

LLNH-18

NSN: 5310-01-270-3229
FSC: 5310 — Nuts and Washers
CAGE: 72962 — HARVARD INDUSTRIES INC (USA)

SPECIFICATIONS

material	PLASTIC POLYAMIDE NYLON LOCKING INSERT
nut_style	DOUBLE HEXAGON
thread_class	2B
thread_series	UNF
overall_height	1.327 INCHES MAXIMUM IN
locking_feature	PREVAILING TORQUE ALL NONMETALLIC DESIGN
thread_direction	RIGHT-HAND
washer_thickness	0.438 INCHES NOMINAL IN
width_across_flats	1.367 INCHES MINIMUM AND 1.377 INCHES MAXIMUM IN
nominal_thread_size	1.125 INCHES IN
washer_outside_diameter	1.875 INCHES MAXIMUM IN
thread_quantity_per_inch	12
NSN	5310-01-270-3229

COMPONENT DIAGRAM

KEY FEATURES

•

WASHER OUTSIDE DIAMETER: 1.875 INCHES MAXIMUM IN

•

WIDTH ACROSS FLATS: 1.367 INCHES MINIMUM AND 1.377 INCHES MAXIMUM IN

•

THREAD SERIES: UNF

•

WASHER THICKNESS: 0.438 INCHES NOMINAL IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: STM D4066 ASSN STD SINGLE MATERIAL RESPONSE LOCKING INSERT

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 1.125 INCHES IN

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	1.327 INCHES MAXIMUM IN
WASHER OUTSIDE DIAMETER	1.875 INCHES MAXIMUM IN
WIDTH ACROSS FLATS	1.367 INCHES MINIMUM AND 1.377 INCHES MAXIMUM IN
THREAD SERIES	UNF
WASHER THICKNESS	0.438 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	STM D4066 ASSN STD SINGLE MATERIAL RESPONSE LOCKING INSERT
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	1.125 INCHES IN
LOCKING FEATURE	PREVAILING TORQUE ALL NONMETALLIC DESIGN
NUT STYLE	DOUBLE HEXAGON

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

5533160-001Reference document

Same NSN cross-reference

Reference document — Vendor item drawing reference

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 LLNH-18?

LLNH-18 is a NUT,SELF-LOCKING,EXTENDED WASHER.

What parts can replace LLNH-18?

There is 1 known substitute for LLNH-18: 5533160-001. Substitute compatibility should be verified for your specific system.

What is the NSN for LLNH-18?

LLNH-18 is cataloged in the U.S. Government catalog under NSN 5310-01-270-3229. This indicates validated use in U.S. government and defense supply chains.

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LLNH-18 — NUT,SELF-LOCKING,EXTENDED WASHER

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