TLN1021CPDN-4 — NUT,SELF-LOCKING,SINGLE BALL SEA

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

TLN1021CPDN-4: NUT,SELF-LOCKING,SINGLE BALL SEA.

NUT,SELF-LOCKING,SINGLE BALL SEA. Key specifications include material: IRON ALLOY 660 OVERALL, nut_style: SINGLE BALL SEAT, DOUBLE HEXAGON, nut_height: 0.330 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN, lubrication: DRY FILM LUBRICANT, temp_rating: -452.0 FAHRENHEIT MINIMUM AND 800.0 FAHRENHEIT MAXIMUM DEGF, thread_class: 3B. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-167-6331, 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

TLN1021CPDN-4

NSN: 5310-01-167-6331
FSC: 5310 — Nuts and Washers
CAGE: 17446 — HUCK INTERNATIONAL, INC (USA)

SPECIFICATIONS

material	IRON ALLOY 660 OVERALL
nut_style	SINGLE BALL SEAT, DOUBLE HEXAGON
nut_height	0.330 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
lubrication	DRY FILM LUBRICANT
temp_rating	-452.0 FAHRENHEIT MINIMUM AND 800.0 FAHRENHEIT MAXIMUM DEGF
thread_class	3B
thread_series	UNIFIED NATIONAL JOINT FINE (UNJF)
locking_feature	PREVAILING TORQUE ALL METAL DESIGN
ball_seat_radius	0.300 INCHES MINIMUM AND 0.305 INCHES MAXIMUM IN
thread_direction	RIGHT-HAND
surface_treatment	PASSIVATE OVERALL
width_across_flats	0.305 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
NSN	5310-01-167-6331

COMPONENT DIAGRAM

KEY FEATURES

•

LUBRICATION: DRY FILM LUBRICANT

•

WIDTH ACROSS FLATS: 0.305 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)

•

TEMP RATING: -452.0 FAHRENHEIT MINIMUM AND 800.0 FAHRENHEIT MAXIMUM DEGF

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.250 INCHES IN

TECHNICAL CHARACTERISTICS

LUBRICATION	DRY FILM LUBRICANT
WIDTH ACROSS FLATS	0.305 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES	UNIFIED NATIONAL JOINT FINE (UNJF)
TEMP RATING	-452.0 FAHRENHEIT MINIMUM AND 800.0 FAHRENHEIT MAXIMUM DEGF
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.250 INCHES IN
LOCKING FEATURE	PREVAILING TORQUE ALL METAL DESIGN
NUT HEIGHT	0.330 INCHES MINIMUM AND 0.340 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

TLN1021CPD1-4Reference document

Same NSN cross-reference

Reference document — Secondary 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 TLN1021CPDN-4?

TLN1021CPDN-4 is a NUT,SELF-LOCKING,SINGLE BALL SEA.

What parts can replace TLN1021CPDN-4?

There is 1 known substitute for TLN1021CPDN-4: TLN1021CPD1-4. Substitute compatibility should be verified for your specific system.

What is the NSN for TLN1021CPDN-4?

TLN1021CPDN-4 is cataloged in the U.S. Government catalog under NSN 5310-01-167-6331. This indicates validated use in U.S. government and defense supply chains.

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