CPST23A — PISTON,COMPRESSOR

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

CPST23A: PISTON,COMPRESSOR.

The PISTON,COMPRESSOR is a the manufacturer industrial component. Key specifications include diameter: 4.238 INCHES MAXIMUM IN, material: ALUMINUM ALLOY, head_style: FLAT, oil_groove: NOT INCLUDED, skirt_type: SOLID, overall_height: 4.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4130-00-340-1857, 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

CPST23A

NSN: 4130-00-340-1857
FSC: 4130 — Refrigeration and Air Conditioning Components
CAGE: 10119 — HARTFORD COMPRESSORS INC (USA)

SPECIFICATIONS

diameter	4.238 INCHES MAXIMUM IN
material	ALUMINUM ALLOY
head_style	FLAT
oil_groove	NOT INCLUDED
skirt_type	SOLID
overall_height	4.500 INCHES NOMINAL IN
surface_finish	FINISHED
oil_passage_type	HOLE
pin_hole_bushing	INCLUDED
ring_groove_width	0.189 INCHES MAXIMUM IN
ring_groove_diameter	3.844 INCHES MAXIMUM AND 3.804 INCHES MAXIMUM IN
ring_groove_quantity	3
NSN	4130-00-340-1857

COMPONENT DIAGRAM

KEY FEATURES

•

RING GROOVE WIDTH: 0.189 INCHES MAXIMUM IN

•

DISTANCE BETWEEN PIN BOSSES: 3.339 INCHES NOMINAL IN

•

INTEGRAL CONNECTING ROD: NOT INCLUDED

•

RETAINING RING GROOVE: INCLUDED

•

SURFACE FINISH: FINISHED

•

OIL PASSAGE TYPE: HOLE

•

DIAMETER: 4.238 INCHES MAXIMUM IN

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	4.500 INCHES NOMINAL IN
RING GROOVE WIDTH	0.189 INCHES MAXIMUM IN
DISTANCE BETWEEN PIN BOSSES	3.339 INCHES NOMINAL IN
INTEGRAL CONNECTING ROD	NOT INCLUDED
RETAINING RING GROOVE	INCLUDED
SURFACE FINISH	FINISHED
OIL PASSAGE TYPE	HOLE
DIAMETER	4.238 INCHES MAXIMUM IN
RING GROOVE DIAMETER	3.844 INCHES MAXIMUM AND 3.804 INCHES MAXIMUM IN
DISTANCE FROM PIN HOLE CENTER TO EXTREME TOP	2.251 INCHES NOMINAL IN

OTHER ITEMS IN FSC 4130 — Refrigeration and Air Conditioning Components

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

4130-00-000-0147 4130-00-000-0166 4130-00-001-6584 4130-00-001-7999 4130-00-001-8020 4130-00-001-9120 4130-00-001-9410 4130-00-001-9424

SUBSTITUTES & CROSS-REFERENCES 2

10MP396Reference document

Same NSN cross-reference

Reference document — Secondary reference

20MP396Reference 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 CPST23A?

CPST23A is a PISTON,COMPRESSOR.

What parts can replace CPST23A?

There are 2 known substitutes for CPST23A: 10MP396, 20MP396. Substitute compatibility should be verified for your specific system.

What is the NSN for CPST23A?

CPST23A is cataloged in the U.S. Government catalog under NSN 4130-00-340-1857. This indicates validated use in U.S. government and defense supply chains.

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CPST23A — PISTON,COMPRESSOR

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