1-8N3725 — VALVE,POPPET,ENGINE

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

1-8N3725: VALVE,POPPET,ENGINE.

The VALVE,POPPET,ENGINE is a the manufacturer industrial component. Key specifications include head_style: FLAT, stem_style: DOUBLE GROOVED, head_height: 0.2000 INCHES NOMINAL IN, neck_radius: 0.6200 INCHES NOMINAL IN, stem_length: 5.8070 INCHES NOMINAL IN, stem_diameter: 0.3714 INCHES MINIMUM AND 0.3720 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 2815-00-007-2291, 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

1-8N3725

NSN: 2815-00-007-2291
FSC: 2815 — Diesel Engines and Components
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)

SPECIFICATIONS

head_style	FLAT
stem_style	DOUBLE GROOVED
head_height	0.2000 INCHES NOMINAL IN
neck_radius	0.6200 INCHES NOMINAL IN
stem_length	5.8070 INCHES NOMINAL IN
stem_diameter	0.3714 INCHES MINIMUM AND 0.3720 INCHES MAXIMUM IN
chamfer_length	0.0300 INCHES NOMINAL IN
outside_diameter	1.5650 INCHES NOMINAL IN
seat_angle_in_deg	45.4
first_groove_width	0.2500 INCHES MINIMUM AND 0.2600 INCHES MAXIMUM IN
second_groove_width	0.0300 INCHES MINIMUM AND 0.0320 INCHES MAXIMUM IN
carbon_relief_groove	NOT INCLUDED
NSN	2815-00-007-2291

COMPONENT DIAGRAM

KEY FEATURES

•

STEM DIAMETER: 0.3714 INCHES MINIMUM AND 0.3720 INCHES MAXIMUM IN

•

HEAD HEIGHT: 0.2000 INCHES NOMINAL IN

•

SECOND GROOVE WIDTH: 0.0300 INCHES MINIMUM AND 0.0320 INCHES MAXIMUM IN

•

STEM LENGTH: 5.8070 INCHES NOMINAL IN

•

SEAT ANGLE IN DEG: 45.4

•

CHAMFER LENGTH: 0.0300 INCHES NOMINAL IN

•

NECK RADIUS: 0.6200 INCHES NOMINAL IN

•

METALLIC HARDNESS RATING AND LOCATION: 50.0 ROCKWELL SUPERFICIAL 30-N MINIMUM STEM

TECHNICAL CHARACTERISTICS

STEM DIAMETER	0.3714 INCHES MINIMUM AND 0.3720 INCHES MAXIMUM IN
HEAD HEIGHT	0.2000 INCHES NOMINAL IN
SECOND GROOVE WIDTH	0.0300 INCHES MINIMUM AND 0.0320 INCHES MAXIMUM IN
STEM LENGTH	5.8070 INCHES NOMINAL IN
SEAT ANGLE IN DEG	45.4
CHAMFER LENGTH	0.0300 INCHES NOMINAL IN
NECK RADIUS	0.6200 INCHES NOMINAL IN
METALLIC HARDNESS RATING AND LOCATION	50.0 ROCKWELL SUPERFICIAL 30-N MINIMUM STEM
METALLIC HARDNESS RATING AND LOCATION	60.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM STEM
METALLIC HARDNESS RATING AND LOCATION	67.0 ROCKWELL SUPERFICIAL 30-N MINIMUM TIP

OTHER ITEMS IN FSC 2815 — Diesel Engines and Components

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

2815-00-000-0075 2815-00-001-0022 2815-00-001-3475 2815-00-001-7728 2815-00-001-7737 2815-00-001-7805 2815-00-001-7806 2815-00-001-7813

SUBSTITUTES & CROSS-REFERENCES 5

IPD1P2629Reference document

Same NSN cross-reference

Reference document — Secondary reference

1P2629Reference document

Same NSN cross-reference

Reference document — Secondary reference

IPD8N3725Reference document

Same NSN cross-reference

Reference document — Secondary reference

MILE11276Reference document

Same NSN cross-reference

Reference document — Identification reference

QPL11276Reference 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 1-8N3725?

1-8N3725 is a VALVE,POPPET,ENGINE.

What parts can replace 1-8N3725?

There are 5 known substitutes for 1-8N3725: IPD1P2629, 1P2629, IPD8N3725 and 2 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 1-8N3725?

1-8N3725 is cataloged in the U.S. Government catalog under NSN 2815-00-007-2291. This indicates validated use in U.S. government and defense supply chains.

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