7521940 — INSERT,ENGINE VALVE SEAT

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

7521940: INSERT,ENGINE VALVE SEAT.

The INSERT,ENGINE VALVE SEAT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_height: 0.3437 INCHES MINIMUM AND 0.3487 INCHES MAXIMUM IN, hardness_rating: 48.0 ROCKWELL C MAXIMUM FACE, special_features: COUNTERBORED,30.0 DEG,1.719 IN. DIA IN, style_designator: PLAIN, seat_angle_in_deg: 1.333 NOMINAL.

This part is cataloged in the U.S. Government catalog under NSN 2805-00-752-1940, 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

7521940

NSN: 2805-00-752-1940
FSC: 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)

SPECIFICATIONS

material	STEEL OVERALL
overall_height	0.3437 INCHES MINIMUM AND 0.3487 INCHES MAXIMUM IN
hardness_rating	48.0 ROCKWELL C MAXIMUM FACE
special_features	COUNTERBORED,30.0 DEG,1.719 IN. DIA IN
style_designator	PLAIN
seat_angle_in_deg	1.333 NOMINAL
body_inside_diameter	1.620 INCHES MINIMUM AND 1.630 INCHES MAXIMUM IN
body_outside_diameter	2.003 INCHES MINIMUM AND 2.004 INCHES MAXIMUM IN
seating_surface_shape	ANGULAR
NSN	2805-00-752-1940

COMPONENT DIAGRAM

KEY FEATURES

•

BODY OUTSIDE DIAMETER: 2.003 INCHES MINIMUM AND 2.004 INCHES MAXIMUM IN

•

HARDNESS RATING: 38.0 ROCKWELL C MINIMUM BODY

•

STYLE DESIGNATOR: PLAIN

•

BODY INSIDE DIAMETER: 1.620 INCHES MINIMUM AND 1.630 INCHES MAXIMUM IN

•

MATERIAL: STEEL OVERALL

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	0.3437 INCHES MINIMUM AND 0.3487 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER	2.003 INCHES MINIMUM AND 2.004 INCHES MAXIMUM IN
HARDNESS RATING	38.0 ROCKWELL C MINIMUM BODY
HARDNESS RATING	48.0 ROCKWELL C MAXIMUM FACE
STYLE DESIGNATOR	PLAIN
BODY INSIDE DIAMETER	1.620 INCHES MINIMUM AND 1.630 INCHES MAXIMUM IN
SPECIAL FEATURES	COUNTERBORED,30.0 DEG,1.719 IN. DIA IN
MATERIAL	STEEL OVERALL
SEAT ANGLE IN DEG	1.333 NOMINAL
SEATING SURFACE SHAPE	ANGULAR

SUBSTITUTES & CROSS-REFERENCES 3

670A4Reference document

Same NSN cross-reference

Reference document — Secondary reference

913793Reference document

Same NSN cross-reference

Reference document — Secondary reference

A1996Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 7521940?

7521940 is a INSERT,ENGINE VALVE SEAT.

What parts can replace 7521940?

There are 3 known substitutes for 7521940: 670A4, 913793, A1996. Substitute compatibility should be verified for your specific system.

What is the NSN for 7521940?

7521940 is cataloged in the U.S. Government catalog under NSN 2805-00-752-1940. This indicates validated use in U.S. government and defense supply chains.

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7521940 — INSERT,ENGINE VALVE SEAT

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