12049B18 — WASHER,KEYWAY

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

12049B18: WASHER,KEYWAY.

The WASHER,KEYWAY is a the manufacturer industrial component. Key specifications include material: TITANIUM OVERALL, hole_diameter: 4.060 INCHES MAXIMUM IN, outside_diameter: 4.560 INCHES NOMINAL IN, material_thickness: 0.019 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN, external_prebent_key_width: 0.310 INCHES NOMINAL IN, overall_distance_including_keys: 4.190 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-381-3044, 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

12049B18

NSN: 5310-01-381-3044
FSC: 5310 — Nuts and Washers
CAGE: 88032 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DBA CURTISS WRIGHT ENGINEERED PUMP DIVISION USE CAGE CODE 0UBG9 FOR CATALOGING (USA)

SPECIFICATIONS

material	TITANIUM OVERALL
hole_diameter	4.060 INCHES MAXIMUM IN
outside_diameter	4.560 INCHES NOMINAL IN
material_thickness	0.019 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN
external_prebent_key_width	0.310 INCHES NOMINAL IN
overall_distance_including_keys	4.190 INCHES NOMINAL IN
NSN	5310-01-381-3044

COMPONENT DIAGRAM

KEY FEATURES

•

OVERALL DISTANCE INCLUDING KEYS: 4.190 INCHES NOMINAL IN

•

OUTSIDE DIAMETER: 4.560 INCHES NOMINAL IN

•

MATERIAL THICKNESS: 0.019 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN

•

EXTERNAL PREBENT KEY WIDTH: 0.310 INCHES NOMINAL IN

•

MATERIAL: TITANIUM OVERALL

•

HOLE DIAMETER: 4.060 INCHES MAXIMUM IN

TECHNICAL CHARACTERISTICS

OVERALL DISTANCE INCLUDING KEYS	4.190 INCHES NOMINAL IN
OUTSIDE DIAMETER	4.560 INCHES NOMINAL IN
MATERIAL THICKNESS	0.019 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN
EXTERNAL PREBENT KEY WIDTH	0.310 INCHES NOMINAL IN
MATERIAL	TITANIUM OVERALL
HOLE DIAMETER	4.060 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 2

12132F18-257ASame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

403D257CX3Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

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 12049B18?

12049B18 is a WASHER,KEYWAY.

What parts can replace 12049B18?

There are 2 known substitutes for 12049B18: 12132F18-257A, 403D257CX3. Substitute compatibility should be verified for your specific system.

What is the NSN for 12049B18?

12049B18 is cataloged in the U.S. Government catalog under NSN 5310-01-381-3044. This indicates validated use in U.S. government and defense supply chains.

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12049B18 — WASHER,KEYWAY

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