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HJ1905 — RING,PISTON

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

HJ1905: RING,PISTON.

The RING,PISTON is a the manufacturer industrial component. Key specifications include material: IRON OVERALL, ring_style: CONCENTRIC, joint_style: INTERLOCKING JOINT, overall_width: 0.1230 INCHES NOMINAL IN, surface_treatment: PHOSPHATE MANGANESE OVERALL, radial_wall_thickness: 0.1050 INCHES MINIMUM AND 0.1150 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 4310-00-545-1566, 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
HJ1905
NSN: 4310-00-545-1566
FSC: 4310 — Compressors and Vacuum Pumps
CAGE: 76602 — MUSKEGON PISTON RING CO MUSKEGON PRODUCTS DIV (USA)
SPECIFICATIONS
materialIRON OVERALL
ring_styleCONCENTRIC
joint_styleINTERLOCKING JOINT
overall_width0.1230 INCHES NOMINAL IN
surface_treatmentPHOSPHATE MANGANESE OVERALL
radial_wall_thickness0.1050 INCHES MINIMUM AND 0.1150 INCHES MAXIMUM IN
standard_bore_diameter2.938 INCHES IN
cross-sectional_shape_stylePLAIN RECTANGULAR, STRAIGHT FACE
NSN4310-00-545-1566
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING,PISTON TITLE COMPONENT PN HJ1905 MFR RING,PISTON
KEY FEATURES
•
CROSS-SECTIONAL SHAPE STYLE: PLAIN RECTANGULAR, STRAIGHT FACE
•
JOINT STYLE: INTERLOCKING JOINT
•
RADIAL WALL THICKNESS: 0.1050 INCHES MINIMUM AND 0.1150 INCHES MAXIMUM IN
•
RING STYLE: CONCENTRIC
•
SURFACE TREATMENT: PHOSPHATE MANGANESE OVERALL
•
STANDARD BORE DIAMETER: 2.938 INCHES IN
•
MATERIAL: IRON OVERALL
TECHNICAL CHARACTERISTICS
OVERALL WIDTH0.1230 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEPLAIN RECTANGULAR, STRAIGHT FACE
JOINT STYLEINTERLOCKING JOINT
RADIAL WALL THICKNESS0.1050 INCHES MINIMUM AND 0.1150 INCHES MAXIMUM IN
RING STYLECONCENTRIC
SURFACE TREATMENTPHOSPHATE MANGANESE OVERALL
STANDARD BORE DIAMETER2.938 INCHES IN
MATERIALIRON 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
8756410Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
2520005451566Reference 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 HJ1905?
HJ1905 is a RING,PISTON.
What parts can replace HJ1905?
There are 2 known substitutes for HJ1905: 8756410, 2520005451566. Substitute compatibility should be verified for your specific system.
What is the NSN for HJ1905?
HJ1905 is cataloged in the U.S. Government catalog under NSN 4310-00-545-1566. 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.