BH-18 — NUT,SELF-LOCKING,ROUND

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

BH-18: NUT,SELF-LOCKING,ROUND.

The NUT,SELF-LOCKING,ROUND is a the manufacturer industrial component. Key specifications include material: STEEL NUT, nut_style: ROUND, nut_diameter: 4.641 INCHES MINIMUM AND 4.656 INCHES MAXIMUM IN, nut_thickness: 0.765 INCHES MINIMUM AND 0.797 INCHES MAXIMUM IN, thread_series: UNS, locking_feature: PREVAILING TORQUE WITH NONMETALLIC INSERT. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-281-9207, 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

BH-18

NSN: 5310-01-281-9207
FSC: 5310 — Nuts and Washers
CAGE: 79568 — WHITTET-HIGGINS COMPANY (USA)

SPECIFICATIONS

material	STEEL NUT
nut_style	ROUND
nut_diameter	4.641 INCHES MINIMUM AND 4.656 INCHES MAXIMUM IN
nut_thickness	0.765 INCHES MINIMUM AND 0.797 INCHES MAXIMUM IN
thread_series	UNS
locking_feature	PREVAILING TORQUE WITH NONMETALLIC INSERT
thread_direction	RIGHT-HAND
drive_point_depth	0.151 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN
drive_point_width	0.355 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
small_end_diameter	3.968 INCHES NOMINAL IN
undercut_thickness	0.203 INCHES MAXIMUM IN
nominal_thread_size	3.527 INCHES IN
NSN	5310-01-281-9207

COMPONENT DIAGRAM

KEY FEATURES

•

THREAD SERIES: UNS

•

THREAD PITCH DIAMETERS: +3.4655 TO 3.4729 INCHES IN

•

DRIVE POINT WIDTH: 0.355 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 3.527 INCHES IN

•

NUT DIAMETER: 4.641 INCHES MINIMUM AND 4.656 INCHES MAXIMUM IN

•

DRIVE POINT DEPTH: 0.151 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN

•

UNDERCUT THICKNESS: 0.203 INCHES MAXIMUM IN

TECHNICAL CHARACTERISTICS

THREAD SERIES	UNS
THREAD PITCH DIAMETERS	+3.4655 TO 3.4729 INCHES IN
DRIVE POINT WIDTH	0.355 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	3.527 INCHES IN
NUT DIAMETER	4.641 INCHES MINIMUM AND 4.656 INCHES MAXIMUM IN
DRIVE POINT DEPTH	0.151 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN
UNDERCUT THICKNESS	0.203 INCHES MAXIMUM IN
LOCKING FEATURE	PREVAILING TORQUE WITH NONMETALLIC INSERT
NUT THICKNESS	0.765 INCHES MINIMUM AND 0.797 INCHES MAXIMUM IN

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

K59-0050Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

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 BH-18?

BH-18 is a NUT,SELF-LOCKING,ROUND.

What parts can replace BH-18?

There is 1 known substitute for BH-18: K59-0050. Substitute compatibility should be verified for your specific system.

What is the NSN for BH-18?

BH-18 is cataloged in the U.S. Government catalog under NSN 5310-01-281-9207. This indicates validated use in U.S. government and defense supply chains.

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