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Technical Data Sheet
PartsTable / COMPONENT / M5501/7-F6
M5501/7-F6 ✓ 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 M5501/7-F6 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-026-3251, 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
M5501/7-F6
NSN: 5340-01-026-3251
FSC: 5340
CAGE: U7739 — LOCKHEED MARTIN UK LTD (GBR)
SPECIFICATIONS
Part NumberM5501/7-F6
NSN5340-01-026-3251
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: M5501/7-F6 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
•
OPEN END INSIDE DIAMETER: 0.288 INCHES MINIMUM AND 0.308 INCHES MAXIMUM IN
•
MATERIAL: PLASTIC, POLYETHYLENE (PP)
•
LENGTH UNDER SHOULDER: 0.350 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
•
CLOSED END OVERALL DIAMETER: 0.417 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: L-P-390, TYPE 1, CLASS L, GRADE 1 FED SPEC SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS (FLIS)
OPEN END INSIDE DIAMETER0.288 INCHES MINIMUM AND 0.308 INCHES MAXIMUM IN
MATERIALPLASTIC, POLYETHYLENE (PP)
LENGTH UNDER SHOULDER0.350 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
CLOSED END OVERALL DIAMETER0.417 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONL-P-390, TYPE 1, CLASS L, GRADE 1 FED SPEC SINGLE MATERIAL RESPONSE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
NAS847Upgraded Successor
successor cross-reference
successor
MIL-C-5501/7Upgraded Successor
successor cross-reference
successor
M5501/7-F24Upgraded Successor
successor cross-reference
successor
17SUpgraded Successor
successor cross-reference
successor
194Upgraded Successor
successor cross-reference
successor
TC15-1714Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M5501/7-F6?
M5501/7-F6 is a M5501/7-F6.
What parts can replace M5501/7-F6?
There are 25 known substitutes for M5501/7-F6: NAS847, MIL-C-5501/7, M5501/7-F24 and 22 more. Substitute compatibility should be verified for your specific system.
Is M5501/7-F6 still available?
M5501/7-F6 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026