Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW
CAP-PLUG,PROTECTIVE,DUST AND MOI. Key specifications include material: PLASTIC, POLYETHYLENE (PP), length_under_shoulder: 0.720 INCHES MINIMUM AND 0.780 INCHES MAXIMUM IN, open_end_inside_diameter: 1.678 INCHES MINIMUM AND 1.698 INCHES MAXIMUM IN, closed_end_overall_diameter: 1.870 INCHES MINIMUM AND 1.890 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-336-2920, 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.
L-P-390, TYPE 1, CLASS L, GRADE 1 FED SPEC 1ST MATERIAL RESPONSE OR L-P-390, TYPE 1, CLASS L, GRADE 2 FED SPEC 2ND MATERIAL RESPONSE
NSN
5340-01-336-2920
COMPONENT DIAGRAM
KEY FEATURES
•
OPEN END INSIDE DIAMETER: 1.678 INCHES MINIMUM AND 1.698 INCHES MAXIMUM IN
•
MATERIAL: PLASTIC, POLYETHYLENE (PP)
•
CLOSED END OVERALL DIAMETER: 1.870 INCHES MINIMUM AND 1.890 INCHES MAXIMUM IN
•
LENGTH UNDER SHOULDER: 0.720 INCHES MINIMUM AND 0.780 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: L-P-390, TYPE 1, CLASS L, GRADE 1 FED SPEC 1ST MATERIAL RESPONSE OR L-P-390, TYPE 1, CLASS L, GRADE 2 FED SPEC 2ND MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS (FLIS)
OPEN END INSIDE DIAMETER
1.678 INCHES MINIMUM AND 1.698 INCHES MAXIMUM IN
MATERIAL
PLASTIC, POLYETHYLENE (PP)
CLOSED END OVERALL DIAMETER
1.870 INCHES MINIMUM AND 1.890 INCHES MAXIMUM IN
LENGTH UNDER SHOULDER
0.720 INCHES MINIMUM AND 0.780 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION
L-P-390, TYPE 1, CLASS L, GRADE 1 FED SPEC 1ST MATERIAL RESPONSE OR L-P-390, TYPE 1, CLASS L, GRADE 2 FED SPEC 2ND MATERIAL RESPONSE
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FREQUENTLY ASKED QUESTIONS
What is RU51091?
RU51091 is a CAP-PLUG,PROTECTIVE,DUST AND MOI.
What parts can replace RU51091?
There are 24 known substitutes for RU51091: NAS847, MIL-C-5501/7, M5501/7-F24 and 21 more. Substitute compatibility should be verified for your specific system.
Is RU51091 still available?
RU51091 is currently cancelled.
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