K19250-4-1 — NUT,SELF-LOCKING,CLINCH

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

K19250-4-1: NUT,SELF-LOCKING,CLINCH.

The NUT,SELF-LOCKING,CLINCH is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, thread_class: 3B, thread_series: UNF, locking_feature: PREVAILING TORQUE ALL METAL DESIGN, thread_direction: RIGHT-HAND, precious_material: SILVER. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-763-4644, 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

K19250-4-1

NSN: 5310-00-763-4644
FSC: 5310 — Nuts and Washers
CAGE: 15653 — HOWMET GLOBAL FASTENING SYSTEMS INC (USA)

SPECIFICATIONS

material	IRON ALLOY 660 OVERALL
thread_class	3B
thread_series	UNF
locking_feature	PREVAILING TORQUE ALL METAL DESIGN
thread_direction	RIGHT-HAND
precious_material	SILVER
surface_treatment	SILVER OVERALL
nominal_thread_size	0.250 INCHES IN
counterbore_diameter	0.255 INCHES MINIMUM AND 0.260 INCHES MAXIMUM NUT IN
nut_counterbore_depth	0.068 INCHES MINIMUM AND 0.078 INCHES MAXIMUM NUT IN
thread_quantity_per_inch	28
material_document_and_classification	AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN	5310-00-763-4644

COMPONENT DIAGRAM

KEY FEATURES

•

THREAD SERIES: UNF

•

PRECIOUS MATERIAL: SILVER

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

NUT COUNTERBORE DEPTH: 0.068 INCHES MINIMUM AND 0.078 INCHES MAXIMUM NUT IN

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.250 INCHES IN

•

COUNTERBORE DIAMETER: 0.255 INCHES MINIMUM AND 0.260 INCHES MAXIMUM NUT IN

•

LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN

TECHNICAL CHARACTERISTICS

THREAD SERIES	UNF
PRECIOUS MATERIAL	SILVER
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NUT COUNTERBORE DEPTH	0.068 INCHES MINIMUM AND 0.078 INCHES MAXIMUM NUT IN
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.250 INCHES IN
COUNTERBORE DIAMETER	0.255 INCHES MINIMUM AND 0.260 INCHES MAXIMUM NUT IN
LOCKING FEATURE	PREVAILING TORQUE ALL METAL DESIGN
SURFACE TREATMENT	SILVER OVERALL
THREAD CLASS	3B

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 3

3014T48P02Reference document

Same NSN cross-reference

Reference document — Secondary reference

LHL9040-5-4Reference document

Same NSN cross-reference

Reference document — Secondary reference

3014T48P01Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is K19250-4-1?

K19250-4-1 is a NUT,SELF-LOCKING,CLINCH.

What parts can replace K19250-4-1?

There are 3 known substitutes for K19250-4-1: 3014T48P02, LHL9040-5-4, 3014T48P01. Substitute compatibility should be verified for your specific system.

What is the NSN for K19250-4-1?

K19250-4-1 is cataloged in the U.S. Government catalog under NSN 5310-00-763-4644. This indicates validated use in U.S. government and defense supply chains.

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