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79821P2W — RING,PISTON

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

79821P2W: RING,PISTON.

The RING,PISTON is a the manufacturer industrial component. Key specifications include material: IRON OVERALL, ring_style: CONCENTRIC, overall_width: 0.1265 INCHES MINIMUM AND 0.1275 INCHES MAXIMUM IN, fsc_application_data: RECIPROCATING AIRCRAFT ENGINE, radial_wall_thickness: 0.1950 INCHES MINIMUM AND 0.2050 INCHES MAXIMUM IN, standard_bore_diameter: 5.750 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 2810-00-293-3865, 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
79821P2W
NSN: 2810-00-293-3865
FSC: 2810 — Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components
CAGE: 00198 — PRATT & WHITNEY CANADA CORP DIV PRATT & WHITNEY CANADA CORP. (CAN)
SPECIFICATIONS
materialIRON OVERALL
ring_styleCONCENTRIC
overall_width0.1265 INCHES MINIMUM AND 0.1275 INCHES MAXIMUM IN
fsc_application_dataRECIPROCATING AIRCRAFT ENGINE
radial_wall_thickness0.1950 INCHES MINIMUM AND 0.2050 INCHES MAXIMUM IN
standard_bore_diameter5.750 INCHES IN
cross-sectional_shape_stylePLAIN KEYSTONE, STRAIGHT FACE
NSN2810-00-293-3865
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING,PISTON TITLE COMPONENT PN 79821P2W MFR RING,PISTON
KEY FEATURES
•
FSC APPLICATION DATA: RECIPROCATING AIRCRAFT ENGINE
•
CROSS-SECTIONAL SHAPE STYLE: PLAIN KEYSTONE, STRAIGHT FACE
•
RADIAL WALL THICKNESS: 0.1950 INCHES MINIMUM AND 0.2050 INCHES MAXIMUM IN
•
RING STYLE: CONCENTRIC
•
STANDARD BORE DIAMETER: 5.750 INCHES IN
•
MATERIAL: IRON OVERALL
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATARECIPROCATING AIRCRAFT ENGINE
OVERALL WIDTH0.1265 INCHES MINIMUM AND 0.1275 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLEPLAIN KEYSTONE, STRAIGHT FACE
RADIAL WALL THICKNESS0.1950 INCHES MINIMUM AND 0.2050 INCHES MAXIMUM IN
RING STYLECONCENTRIC
STANDARD BORE DIAMETER5.750 INCHES IN
MATERIALIRON OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
188447Reference 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 79821P2W?
79821P2W is a RING,PISTON.
What parts can replace 79821P2W?
There is 1 known substitute for 79821P2W: 188447. Substitute compatibility should be verified for your specific system.
What is the NSN for 79821P2W?
79821P2W is cataloged in the U.S. Government catalog under NSN 2810-00-293-3865. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.