Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW
CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: PLASTIC, design_type: THREADED, thread_class: 3B, overall_diameter: 2.030 INCHES MINIMUM AND 2.090 INCHES MAXIMUM IN, inside_diameter_length: 0.970 INCHES MINIMUM AND 1.030 INCHES MAXIMUM IN, round_cap_outside_surface_condition: RIBBED. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-411-9628, 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-F18
NSN:5340-01-411-9628 FSC:5340 CAGE:81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
material
PLASTIC
design_type
THREADED
thread_class
3B
overall_diameter
2.030 INCHES MINIMUM AND 2.090 INCHES MAXIMUM IN
inside_diameter_length
0.970 INCHES MINIMUM AND 1.030 INCHES MAXIMUM IN
round_cap_outside_surface_condition
RIBBED
material_document_and_classification
L-P-390, TYPE 1, CLASS L, GRADE 1 OR GRADE 2 FED SPEC SINGLE MATERIAL RESPONSE
thread_size_and_series/type_designator
1 7/8-12 UN
NSN
5340-01-411-9628
COMPONENT DIAGRAM
KEY FEATURES
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 1 7/8-12 UN
•
MATERIAL DOCUMENT AND CLASSIFICATION: L-P-390, TYPE 1, CLASS L, GRADE 1 OR GRADE 2 FED SPEC SINGLE MATERIAL RESPONSE
•
MATERIAL: PLASTIC
•
THREAD CLASS: 3B
•
ROUND CAP OUTSIDE SURFACE CONDITION: RIBBED
•
DESIGN TYPE: THREADED
•
OVERALL DIAMETER: 2.030 INCHES MINIMUM AND 2.090 INCHES MAXIMUM IN
•
INSIDE DIAMETER LENGTH: 0.970 INCHES MINIMUM AND 1.030 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SIZE AND SERIES/TYPE DESIGNATOR
1 7/8-12 UN
MATERIAL DOCUMENT AND CLASSIFICATION
L-P-390, TYPE 1, CLASS L, GRADE 1 OR GRADE 2 FED SPEC SINGLE MATERIAL RESPONSE
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FREQUENTLY ASKED QUESTIONS
What is M5501/11-F18?
M5501/11-F18 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace M5501/11-F18?
There are 26 known substitutes for M5501/11-F18: 5340PL0845466, N351CD3, 5340PL1879934 and 23 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M5501/11-F18?
M5501/11-F18 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-411-9628. This indicates validated use in U.S. government and defense supply chains.
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