3M138-5 — NUT,SELF-LOCKING,SINGLE BALL SEA

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

3M138-5: NUT,SELF-LOCKING,SINGLE BALL SEA.

NUT,SELF-LOCKING,SINGLE BALL SEA. Key specifications include nut_style: SINGLE BALL SEAT, HEXAGON, nut_height: 0.353 INCHES NOMINAL IN, temp_rating: 450.0 FAHRENHEIT NOMINAL DEGF, thread_class: 2B, locking_feature: PREVAILING TORQUE ALL METAL DESIGN, ball_seat_radius: 0.344 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-735-8037, 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

3M138-5

NSN: 5310-00-735-8037
FSC: 5310 — Nuts and Washers
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)

SPECIFICATIONS

nut_style	SINGLE BALL SEAT, HEXAGON
nut_height	0.353 INCHES NOMINAL IN
temp_rating	450.0 FAHRENHEIT NOMINAL DEGF
thread_class	2B
locking_feature	PREVAILING TORQUE ALL METAL DESIGN
ball_seat_radius	0.344 INCHES NOMINAL IN
thread_direction	RIGHT-HAND
NSN	5310-00-735-8037

COMPONENT DIAGRAM

KEY FEATURES

•

TEMP RATING: 450.0 FAHRENHEIT NOMINAL DEGF

•

THREAD DIRECTION: RIGHT-HAND

•

LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN

•

NUT HEIGHT: 0.353 INCHES NOMINAL IN

•

BALL SEAT RADIUS: 0.344 INCHES NOMINAL IN

•

NUT STYLE: SINGLE BALL SEAT, HEXAGON

•

THREAD CLASS: 2B

TECHNICAL CHARACTERISTICS

TEMP RATING	450.0 FAHRENHEIT NOMINAL DEGF
THREAD DIRECTION	RIGHT-HAND
LOCKING FEATURE	PREVAILING TORQUE ALL METAL DESIGN
NUT HEIGHT	0.353 INCHES NOMINAL IN
BALL SEAT RADIUS	0.344 INCHES NOMINAL IN
NUT STYLE	SINGLE BALL SEAT, HEXAGON
THREAD CLASS	2B

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 2

67992N524Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

RM52LH2935-054Reference document

Same NSN cross-reference

Reference document — Design control — primary 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 3M138-5?

3M138-5 is a NUT,SELF-LOCKING,SINGLE BALL SEA.

What parts can replace 3M138-5?

There are 2 known substitutes for 3M138-5: 67992N524, RM52LH2935-054. Substitute compatibility should be verified for your specific system.

What is the NSN for 3M138-5?

3M138-5 is cataloged in the U.S. Government catalog under NSN 5310-00-735-8037. This indicates validated use in U.S. government and defense supply chains.

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3M138-5 — NUT,SELF-LOCKING,SINGLE BALL SEA

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