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Technical Data Sheet
PartsTable / COMPONENT / M5501/3-4G
M5501/3-4G ✓ 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 M5501/3-4G 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 5340-01-212-1295, 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
M5501/3-4G
NSN: 5340-01-212-1295
FSC: 5340
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberM5501/3-4G
NSN5340-01-212-1295
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: M5501/3-4G 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
•
INSIDE DIAMETER LENGTH: 0.350 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
•
THREAD CLASS: 3A A
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 7/16-20 UNF
•
DESIGN TYPE: THREADED
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/2, T0 FED SPEC SINGLE MATERIAL RESPONSE
•
ROUND CAP OUTSIDE SURFACE CONDITION: KNURLED
•
MATERIAL: ALUMINUM ALLOY
•
SURFACE TREATMENT: CHROMATE
TECHNICAL CHARACTERISTICS (FLIS)
INSIDE DIAMETER LENGTH0.350 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
THREAD CLASS3A A
THREAD SIZE AND SERIES/TYPE DESIGNATOR7/16-20 UNF
DESIGN TYPETHREADED
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/2, T0 FED SPEC SINGLE MATERIAL RESPONSE
ROUND CAP OUTSIDE SURFACE CONDITIONKNURLED
MATERIALALUMINUM ALLOY
SURFACE TREATMENTCHROMATE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-5541, CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE A
OVERALL DIAMETER0.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
NAS817-6Upgraded Successor
successor cross-reference
successor
NAS835-6AUpgraded Successor
successor cross-reference
successor
10117546Upgraded Successor
successor cross-reference
successor
MIL-C-5501/3Upgraded Successor
successor cross-reference
successor
M5501/3-R8Upgraded Successor
successor cross-reference
successor
NAS814-8BUpgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M5501/3-4G?
M5501/3-4G is a M5501/3-4G.
What parts can replace M5501/3-4G?
There are 21 known substitutes for M5501/3-4G: NAS817-6, NAS835-6A, 10117546 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M5501/3-4G?
M5501/3-4G is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-212-1295. 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.
PartsTable Design LLC · partstable.com
Last verified: July 2026