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217523 — SHAFT,SHOULDERED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

217523: SHAFT,SHOULDERED.

The SHAFT,SHOULDERED is a the manufacturer industrial component. Key specifications include material: TITANIUM, end_similarity: NOT IDENTICAL, overall_length: 31.875 INCHES NOMINAL IN, surface_finish: 125.0 MICROINCHES, first_end_style: SPLINED (STRAIGHT), second_end_style: INTERNAL THREADED. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-861-8592, 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
217523
NSN: 5330-00-861-8592
NIINs: 008618592, 012751620
FSC: 5330 — Packing and Gasket Materials
CAGE: 89619 — MACK TRUCKS, INC. DBA MACUNGIE OPERATIONS DIV LEHIGH VALLEY OPERATIONS (USA)
SPECIFICATIONS
materialTITANIUM
step_quantity4
end_similarityNOT IDENTICAL
overall_length31.875 INCHES NOMINAL IN
surface_finish125.0 MICROINCHES
first_end_styleSPLINED (STRAIGHT)
second_end_styleINTERNAL THREADED
first_end_diameter5.4950 INCHES NOMINAL IN
second_end_diameter4.9965 INCHES NOMINAL IN
largest_step_diameter5.495 INCHES NOMINAL IN
first_end_spline_length4.500 INCHES NOMINAL IN
first_end_spline_quantity10
NSN5330-00-861-8592
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 217523 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
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SUPPLEMENTARY FEATURES: CROSS-SECTIONAL SHAPE STYLE:NO.195 IRREGULAR SHAPE FROM FIIG A03200
TECHNICAL CHARACTERISTICS
SUPPLEMENTARY FEATURESCROSS-SECTIONAL SHAPE STYLE:NO.195 IRREGULAR SHAPE FROM FIIG A03200
SPECIAL FEATURESSTYLE DESIGNATOR:NO.60 IRREGULAR SHAPE FROM FIIG A03200
SUBSTITUTES & CROSS-REFERENCES 2
187589Reference document
Same NSN cross-reference
Reference document — Secondary reference
5330008618592Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 217523?
217523 is a SHAFT,SHOULDERED.
What parts can replace 217523?
There are 2 known substitutes for 217523: 187589, 5330008618592. Substitute compatibility should be verified for your specific system.
What is the NSN for 217523?
217523 is cataloged in the U.S. Government catalog under NSN 5330-00-861-8592. 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.