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Technical Data Sheet
M5501/11-F1 ✓ 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 M5501/11-F1 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 5340-01-174-4894, 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
M5501/11-F1
NSN: 5340-01-174-4894
FSC: 5340
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberM5501/11-F1
NSN5340-01-174-4894
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: M5501/11-F1 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
THREAD CLASS: 3B
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 1/4-28 UNF
DESIGN TYPE: THREADED
INSIDE DIAMETER LENGTH: 0.280 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
MATERIAL: PLASTIC
MATERIAL DOCUMENT AND CLASSIFICATION: L-P-390, TYPE 1, CLASS L, GRADE 1 OR GRADE 2 FED SPEC SINGLE MATERIAL RESPONSE
ROUND CAP OUTSIDE SURFACE CONDITION: RIBBED
OVERALL DIAMETER: 0.310 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS3B
THREAD SIZE AND SERIES/TYPE DESIGNATOR1/4-28 UNF
DESIGN TYPETHREADED
INSIDE DIAMETER LENGTH0.280 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
MATERIALPLASTIC
MATERIAL DOCUMENT AND CLASSIFICATIONL-P-390, TYPE 1, CLASS L, GRADE 1 OR GRADE 2 FED SPEC SINGLE MATERIAL RESPONSE
ROUND CAP OUTSIDE SURFACE CONDITIONRIBBED
OVERALL DIAMETER0.310 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
5340PL0845466Upgraded Successor
successor cross-reference
successor
N351CD3Upgraded Successor
successor cross-reference
successor
5340PL1879934Upgraded Successor
successor cross-reference
successor
NAS832-6Upgraded Successor
successor cross-reference
successor
5340PL0845484Upgraded Successor
successor cross-reference
successor
CD6Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M5501/11-F1?
M5501/11-F1 is a M5501/11-F1.
What parts can replace M5501/11-F1?
There are 27 known substitutes for M5501/11-F1: 5340PL0845466, N351CD3, 5340PL1879934 and 24 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M5501/11-F1?
M5501/11-F1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-174-4894. This indicates validated use in U.S. government and defense supply chains.
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