PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 877662-00
877662-00 ✓ 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

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include design_type: THREADED, thread_class: 3B, overall_diameter: 0.850 INCHES MINIMUM AND 0.910 INCHES MAXIMUM IN, inside_diameter_length: 0.590 INCHES MINIMUM AND 0.650 INCHES MAXIMUM IN, round_cap_outside_surface_condition: RIBBED, thread_size_and_series/type_designator: 3/4-20 UNEF. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-206-5372, 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
877662-00
NSN: 5340-01-206-5372
FSC: 5340
CAGE: 32345 — DEFENSE REDUCTION AGENCY (USA)
SPECIFICATIONS
design_typeTHREADED
thread_class3B
overall_diameter0.850 INCHES MINIMUM AND 0.910 INCHES MAXIMUM IN
inside_diameter_length0.590 INCHES MINIMUM AND 0.650 INCHES MAXIMUM IN
round_cap_outside_surface_conditionRIBBED
thread_size_and_series/type_designator3/4-20 UNEF
NSN5340-01-206-5372
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 877662-00 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
•
ROUND CAP OUTSIDE SURFACE CONDITION: RIBBED
•
DESIGN TYPE: THREADED
•
THREAD CLASS: 3B
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 3/4-20 UNEF
•
INSIDE DIAMETER LENGTH: 0.590 INCHES MINIMUM AND 0.650 INCHES MAXIMUM IN
•
OVERALL DIAMETER: 0.850 INCHES MINIMUM AND 0.910 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
ROUND CAP OUTSIDE SURFACE CONDITIONRIBBED
DESIGN TYPETHREADED
THREAD CLASS3B
THREAD SIZE AND SERIES/TYPE DESIGNATOR3/4-20 UNEF
INSIDE DIAMETER LENGTH0.590 INCHES MINIMUM AND 0.650 INCHES MAXIMUM IN
OVERALL DIAMETER0.850 INCHES MINIMUM AND 0.910 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
890336-32Upgraded Successor
successor cross-reference
successor
M5501/11-F14Upgraded Successor
successor cross-reference
successor
MIL-C-5501/11Upgraded Successor
successor cross-reference
successor
M5501/11-F4Upgraded Successor
successor cross-reference
successor
NAS832-4Upgraded Successor
successor cross-reference
successor
M5501/11-F7Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 877662-00?
877662-00 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace 877662-00?
There are 21 known substitutes for 877662-00: 890336-32, M5501/11-F14, MIL-C-5501/11 and 18 more. Substitute compatibility should be verified for your specific system.
Is 877662-00 still available?
877662-00 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