PST68A — PISTON,COMPRESSOR

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

PST68A: PISTON,COMPRESSOR.

The PISTON,COMPRESSOR is a the manufacturer industrial component. Key specifications include diameter: 4.750 INCHES NOMINAL IN, head_style: CONCAVE, oil_groove: INCLUDED, skirt_type: SOLID, overall_height: 4.750 INCHES NOMINAL IN, surface_finish: SEMIFINISHED. This part is cataloged in the U.S.

Government catalog under NSN 4310-00-393-7037, 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

PST68A

NSN: 4310-00-393-7037
FSC: 4310 — Compressors and Vacuum Pumps
CAGE: 11247 — LODESTONE CORP DIV OF FEDDERS CORP (USA)

SPECIFICATIONS

diameter	4.750 INCHES NOMINAL IN
head_style	CONCAVE
oil_groove	INCLUDED
skirt_type	SOLID
overall_height	4.750 INCHES NOMINAL IN
surface_finish	SEMIFINISHED
oil_passage_type	HOLE
pin_hole_bushing	NOT INCLUDED
pinhole_diameter	1.250 INCHES NOMINAL IN
ring_groove_width	0.250 INCHES NOMINAL AND 0.125 INCHES NOMINAL IN
ring_groove_diameter	4.250 INCHES NOMINAL IN
ring_groove_quantity	4
NSN	4310-00-393-7037

COMPONENT DIAGRAM

KEY FEATURES

•

RING GROOVE WIDTH: 0.250 INCHES NOMINAL AND 0.125 INCHES NOMINAL IN

•

INTEGRAL CONNECTING ROD: NOT INCLUDED

•

RETAINING RING GROOVE: NOT INCLUDED

•

SURFACE FINISH: SEMIFINISHED

•

RING GROOVE POSITION AND QUANTITY: NO. 1,NO. 2,NO. 3 AND NO. 4 POSITIONS PISTON

•

OIL PASSAGE TYPE: HOLE

•

DIAMETER: 4.750 INCHES NOMINAL IN

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	4.750 INCHES NOMINAL IN
RING GROOVE WIDTH	0.250 INCHES NOMINAL AND 0.125 INCHES NOMINAL IN
INTEGRAL CONNECTING ROD	NOT INCLUDED
RETAINING RING GROOVE	NOT INCLUDED
SURFACE FINISH	SEMIFINISHED
RING GROOVE POSITION AND QUANTITY	NO. 1,NO. 2,NO. 3 AND NO. 4 POSITIONS PISTON
OIL PASSAGE TYPE	HOLE
DIAMETER	4.750 INCHES NOMINAL IN
RING GROOVE DIAMETER	4.250 INCHES NOMINAL IN
DISTANCE FROM PIN HOLE CENTER TO EXTREME TOP	2.125 INCHES NOMINAL IN

SUBSTITUTES & CROSS-REFERENCES 2

B8A86Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

551162Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is PST68A?

PST68A is a PISTON,COMPRESSOR.

What parts can replace PST68A?

There are 2 known substitutes for PST68A: B8A86, 551162. Substitute compatibility should be verified for your specific system.

What is the NSN for PST68A?

PST68A is cataloged in the U.S. Government catalog under NSN 4310-00-393-7037. This indicates validated use in U.S. government and defense supply chains.

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PST68A — PISTON,COMPRESSOR

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