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M2-SA28 — RING,PISTON

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

M2-SA28: RING,PISTON.

The RING,PISTON is a the manufacturer industrial component. Key specifications include material: GRAPHITE OVERALL, ring_style: CONCENTRIC, joint_style: VERTICAL JOINT, overall_width: 0.0890 INCHES MINIMUM AND 0.0990 INCHES MAXIMUM IN, fsc_application_data: AIRCRAFT HYDRAULIC SYSTEM, radial_wall_thickness: 0.6700 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4310-01-261-6218, 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
M2-SA28
NSN: 4310-01-261-6218
FSC: 4310 — Compressors and Vacuum Pumps
CAGE: 71310 — MERSEN USA PTT CORP DBA MERSEN USA - SALEM BRANCH DIV MERSEN USA BN CORP (USA)
SPECIFICATIONS
materialGRAPHITE OVERALL
ring_styleCONCENTRIC
joint_styleVERTICAL JOINT
overall_width0.0890 INCHES MINIMUM AND 0.0990 INCHES MAXIMUM IN
fsc_application_dataAIRCRAFT HYDRAULIC SYSTEM
radial_wall_thickness0.6700 INCHES NOMINAL IN
standard_bore_diameter1.211 INCHES IN
end_item_identification1650-01-183-0211
cross-sectional_shape_stylePLAIN RECTANGULAR, STRAIGHT FACE
NSN4310-01-261-6218
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING,PISTON TITLE COMPONENT PN M2-SA28 MFR RING,PISTON
KEY FEATURES
•
FSC APPLICATION DATA: AIRCRAFT HYDRAULIC SYSTEM
•
CROSS-SECTIONAL SHAPE STYLE: PLAIN RECTANGULAR, STRAIGHT FACE
•
JOINT STYLE: VERTICAL JOINT
•
RADIAL WALL THICKNESS: 0.6700 INCHES NOMINAL IN
•
RING STYLE: CONCENTRIC
•
STANDARD BORE DIAMETER: 1.211 INCHES IN
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATAAIRCRAFT HYDRAULIC SYSTEM
OVERALL WIDTH0.0890 INCHES MINIMUM AND 0.0990 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLEPLAIN RECTANGULAR, STRAIGHT FACE
JOINT STYLEVERTICAL JOINT
RADIAL WALL THICKNESS0.6700 INCHES NOMINAL IN
RING STYLECONCENTRIC
STANDARD BORE DIAMETER1.211 INCHES IN
END ITEM IDENTIFICATION1650-01-183-0211
MATERIALGRAPHITE OVERALL
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 2
M2-SA2BReference document
Same NSN cross-reference
Reference document — Secondary reference
27080-26Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is M2-SA28?
M2-SA28 is a RING,PISTON.
What parts can replace M2-SA28?
There are 2 known substitutes for M2-SA28: M2-SA2B, 27080-26. Substitute compatibility should be verified for your specific system.
What is the NSN for M2-SA28?
M2-SA28 is cataloged in the U.S. Government catalog under NSN 4310-01-261-6218. 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.