407-PP40 — PISTON,INTERNAL COMBUSTION ENGIN

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

407-PP40: PISTON,INTERNAL COMBUSTION ENGIN.

PISTON,INTERNAL COMBUSTION ENGIN. Key specifications include diameter: 3.910 INCHES NOMINAL IN, material: ALUMINUM ALLOY, oversize: 0.040 INCHES NOMINAL IN, cut_depth: 0.960 INCHES NOMINAL IN, head_style: DISH, oil_groove: INCLUDED. This part is cataloged in the U.S.

Government catalog under NSN 2805-00-491-3304, 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

407-PP40

NSN: 2805-00-491-3304
FSC: 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
CAGE: 74069 — HASTINGS MANUFACTURING CO DIV HASTINGS MANUFACTURING COMPANY (USA)

SPECIFICATIONS

diameter	3.910 INCHES NOMINAL IN
material	ALUMINUM ALLOY
oversize	0.040 INCHES NOMINAL IN
cut_depth	0.960 INCHES NOMINAL IN
head_style	DISH
oil_groove	INCLUDED
skirt_type	SOLID
carbon_groove	NOT INCLUDED
overall_height	3.415 INCHES MINIMUM AND 3.425 INCHES MAXIMUM IN
surface_finish	FINISHED
pin_hole_bushing	NOT INCLUDED
pinhole_diameter	0.9840 INCHES NOMINAL IN
NSN	2805-00-491-3304

COMPONENT DIAGRAM

KEY FEATURES

•

CARBON GROOVE: NOT INCLUDED

•

RING GROOVE WIDTH: 0.1880 INCHES NOMINAL THIRD RING IN

•

DISTANCE BETWEEN PIN BOSSES: 1.440 INCHES NOMINAL IN

•

RETAINING RING GROOVE: INCLUDED

•

SURFACE FINISH: FINISHED

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	3.415 INCHES MINIMUM AND 3.425 INCHES MAXIMUM IN
CARBON GROOVE	NOT INCLUDED
RING GROOVE WIDTH	0.1880 INCHES NOMINAL THIRD RING IN
RING GROOVE WIDTH	0.0780 INCHES NOMINAL FIRST RING IN
RING GROOVE WIDTH	0.0780 INCHES NOMINAL SECOND RING IN
DISTANCE BETWEEN PIN BOSSES	1.440 INCHES NOMINAL IN
RETAINING RING GROOVE	INCLUDED
SURFACE FINISH	FINISHED
DIAMETER	3.910 INCHES NOMINAL IN
RING GROOVE DIAMETER	3.471 INCHES MINIMUM AND 3.486 INCHES MAXIMUM FIRST RING IN

OTHER ITEMS IN FSC 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components

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

2805-00-010-2959 2805-00-066-3426 2805-00-326-0797 2805-00-395-7778 2805-00-422-9321 2805-00-447-9114 2805-00-448-0786 2805-00-561-9463

SUBSTITUTES & CROSS-REFERENCES 5

2808522Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

993P040Reference document

Same NSN cross-reference

Reference document — Secondary reference

1727P040Reference document

Same NSN cross-reference

Reference document — Secondary reference

2268P040Reference document

Same NSN cross-reference

Reference document — Secondary reference

993PC40Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 407-PP40?

407-PP40 is a PISTON,INTERNAL COMBUSTION ENGIN.

What parts can replace 407-PP40?

There are 5 known substitutes for 407-PP40: 2808522, 993P040, 1727P040 and 2 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 407-PP40?

407-PP40 is cataloged in the U.S. Government catalog under NSN 2805-00-491-3304. This indicates validated use in U.S. government and defense supply chains.

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407-PP40 — PISTON,INTERNAL COMBUSTION ENGIN

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