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Technical Data Sheet
PartsTable / COMPONENT / M5501/1-16
M5501/1-16 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The M5501/1-16 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-804-1245, 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
M5501/1-16
NSN: 5340-00-804-1245
FSC: 5340
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberM5501/1-16
NSN5340-00-804-1245
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: M5501/1-16 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 DOCUMENT AND CLASSIFICATION: QQ-A-250/2 FED SPEC SINGLE MATERIAL RESPONSE
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625, TYPE 2 MIL SPEC SINGLE TREATMENT RESPONSE
•
THREAD CLASS: 2A A
•
DESIGN TYPE: THREADED
•
MATERIAL: ALUMINUM ALLOY 3003
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 1-5/16-12 UN
•
NONDEFINITIVE SPEC/STD DATA: A CLASS AND 3 TYPE
•
SURFACE TREATMENT: ANODIZE
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/2 FED SPEC SINGLE MATERIAL RESPONSE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625, TYPE 2 MIL SPEC SINGLE TREATMENT RESPONSE
THREAD CLASS2A A
DESIGN TYPETHREADED
MATERIALALUMINUM ALLOY 3003
THREAD SIZE AND SERIES/TYPE DESIGNATOR1-5/16-12 UN
NONDEFINITIVE SPEC/STD DATAA CLASS AND 3 TYPE
SURFACE TREATMENTANODIZE
OVERALL DIAMETER2.063 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
SP16Upgraded Successor
successor cross-reference
successor
ASP-16Upgraded Successor
successor cross-reference
successor
10117326Upgraded Successor
successor cross-reference
successor
5340PL1866828Interchangeable
interchangeable cross-reference
interchangeable
81584Interchangeable
interchangeable cross-reference
interchangeable
10160009Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M5501/1-16?
M5501/1-16 is a M5501/1-16.
What parts can replace M5501/1-16?
There are 31 known substitutes for M5501/1-16: SP16, ASP-16, 10117326 and 28 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M5501/1-16?
M5501/1-16 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-804-1245. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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Last verified: July 2026