PST-446A — PISTON,COMPRESSOR

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

PST-446A: PISTON,COMPRESSOR.

The PISTON,COMPRESSOR is a the manufacturer industrial component. Key specifications include diameter: 4.4977 INCHES NOMINAL IN, material: IRON CAST, head_style: DOME, oil_groove: NOT INCLUDED, skirt_type: SOLID, overall_height: 4.123 INCHES MINIMUM AND 4.127 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 4310-00-841-9902, 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

PST-446A

NSN: 4310-00-841-9902
FSC: 4310 — Compressors and Vacuum Pumps
CAGE: 59379 — ATLAS COPCO HOLYOKE INC (USA)

SPECIFICATIONS

diameter	4.4977 INCHES NOMINAL IN
material	IRON CAST
head_style	DOME
oil_groove	NOT INCLUDED
skirt_type	SOLID
overall_height	4.123 INCHES MINIMUM AND 4.127 INCHES MAXIMUM IN
surface_finish	FINISHED
oil_passage_type	HOLE
pin_hole_bushing	NOT INCLUDED
pinhole_diameter	1.250 INCHES NOMINAL IN
ring_groove_width	0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM AND 0.026 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
fsc_application_data	AIR COMPRESSOR
NSN	4310-00-841-9902

COMPONENT DIAGRAM

KEY FEATURES

•

FSC APPLICATION DATA: AIR COMPRESSOR

•

RING GROOVE WIDTH: 0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM AND 0.026 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN

•

DISTANCE BETWEEN PIN BOSSES: 2.375 INCHES NOMINAL IN

•

INTEGRAL CONNECTING ROD: NOT INCLUDED

•

RETAINING RING GROOVE: INCLUDED

•

SURFACE FINISH: FINISHED

•

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

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	4.123 INCHES MINIMUM AND 4.127 INCHES MAXIMUM IN
FSC APPLICATION DATA	AIR COMPRESSOR
RING GROOVE WIDTH	0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM AND 0.026 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
DISTANCE BETWEEN PIN BOSSES	2.375 INCHES NOMINAL IN
INTEGRAL CONNECTING ROD	NOT INCLUDED
RETAINING RING GROOVE	INCLUDED
SURFACE FINISH	FINISHED
RING GROOVE POSITION AND QUANTITY	NO. 1,NO. 2,NO. 3 AND NO. 4 POSITIONS PISTON
OIL PASSAGE TYPE	HOLE
DIAMETER	4.4977 INCHES NOMINAL IN

OTHER ITEMS IN FSC 4310 — Compressors and Vacuum Pumps

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

4310-00-000-0050 4310-00-001-0059 4310-00-001-2044 4310-00-001-3477 4310-00-001-3493 4310-00-001-6194 4310-00-001-6381 4310-00-001-7755

SUBSTITUTES & CROSS-REFERENCES 3

PST00446ASame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

1759NReference document

Same NSN cross-reference

Reference document — Secondary reference

HL17832PC36-38Reference 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 PST-446A?

PST-446A is a PISTON,COMPRESSOR.

What parts can replace PST-446A?

There are 3 known substitutes for PST-446A: PST00446A, 1759N, HL17832PC36-38. Substitute compatibility should be verified for your specific system.

What is the NSN for PST-446A?

PST-446A is cataloged in the U.S. Government catalog under NSN 4310-00-841-9902. This indicates validated use in U.S. government and defense supply chains.

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