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PT105901 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

PT105901: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE, special_features: O-RING IS FIBERGLASS AND MOLY-FILLED PTFE., end_item_identification: STROKE ACTUATOR, part_name_assigned_by_controlling_agency: SEAL,FLEXILIP,RP-5869. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-622-3572, 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
PT105901
NSN: 5331-01-622-3572
FSC: 5331 — O-ring
CAGE: 11859 — HUNT VALVE COMPANY, INC. (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE
special_featuresO-RING IS FIBERGLASS AND MOLY-FILLED PTFE.
end_item_identificationSTROKE ACTUATOR
part_name_assigned_by_controlling_agencySEAL,FLEXILIP,RP-5869
NSN5331-01-622-3572
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: PT105901 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
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESO-RING IS FIBERGLASS AND MOLY-FILLED PTFE.
PART NAME ASSIGNED BY CONTROLLING AGENCYSEAL,FLEXILIP,RP-5869
END ITEM IDENTIFICATIONSTROKE ACTUATOR
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE
OTHER ITEMS IN FSC 5331 — O-ring
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5331-00-001-1971 5331-00-001-1979 5331-00-001-3904 5331-00-001-3905 5331-00-001-3906 5331-00-001-3908 5331-00-001-3923 5331-00-001-3924
SUBSTITUTES & CROSS-REFERENCES 1
PT102216-4790 ITEM NO.78Same 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 PT105901?
PT105901 is a O-RING.
What parts can replace PT105901?
There is 1 known substitute for PT105901: PT102216-4790 ITEM NO.78. Substitute compatibility should be verified for your specific system.
What is the NSN for PT105901?
PT105901 is cataloged in the U.S. Government catalog under NSN 5331-01-622-3572. 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.