81767-1018 — NUT,SELF-LOCKING,DOUBLE HEXAGON

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

81767-1018: NUT,SELF-LOCKING,DOUBLE HEXAGON.

NUT,SELF-LOCKING,DOUBLE HEXAGON. Key specifications include material: STEEL OVERALL, nut_height: 1.160 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), hardness_rating: 35.5 ROCKWELL C MINIMUM AND 39.5 ROCKWELL C MAXIMUM, locking_feature: PREVAILING TORQUE WITH NONMETALLIC INSERT. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-185-9149, 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

81767-1018

NSN: 5310-01-185-9149
FSC: 5310 — Nuts and Washers
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)

SPECIFICATIONS

material	STEEL OVERALL
nut_height	1.160 INCHES NOMINAL IN
thread_class	3B
thread_series	UNIFIED NATIONAL JOINT FINE (UNJF)
hardness_rating	35.5 ROCKWELL C MINIMUM AND 39.5 ROCKWELL C MAXIMUM
locking_feature	PREVAILING TORQUE WITH NONMETALLIC INSERT
thread_direction	RIGHT-HAND
width_across_flats	7.850 INCHES NOMINAL IN
nominal_thread_size	0.625 INCHES IN
bearing_surface_type	WASHER FACED
thread_quantity_per_inch	38
NSN	5310-01-185-9149

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 7.850 INCHES NOMINAL IN

•

THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)

•

HARDNESS RATING: 35.5 ROCKWELL C MINIMUM AND 39.5 ROCKWELL C MAXIMUM

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.625 INCHES IN

•

LOCKING FEATURE: PREVAILING TORQUE WITH NONMETALLIC INSERT

•

NUT HEIGHT: 1.160 INCHES NOMINAL IN

•

THREAD CLASS: 3B

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	7.850 INCHES NOMINAL IN
THREAD SERIES	UNIFIED NATIONAL JOINT FINE (UNJF)
HARDNESS RATING	35.5 ROCKWELL C MINIMUM AND 39.5 ROCKWELL C MAXIMUM
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.625 INCHES IN
LOCKING FEATURE	PREVAILING TORQUE WITH NONMETALLIC INSERT
NUT HEIGHT	1.160 INCHES NOMINAL IN
THREAD CLASS	3B
THREAD QUANTITY PER INCH	38
MATERIAL	STEEL OVERALL

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

406-010-214-101Same 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 81767-1018?

81767-1018 is a NUT,SELF-LOCKING,DOUBLE HEXAGON.

What parts can replace 81767-1018?

There is 1 known substitute for 81767-1018: 406-010-214-101. Substitute compatibility should be verified for your specific system.

What is the NSN for 81767-1018?

81767-1018 is cataloged in the U.S. Government catalog under NSN 5310-01-185-9149. This indicates validated use in U.S. government and defense supply chains.

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81767-1018 — NUT,SELF-LOCKING,DOUBLE HEXAGON

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