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H9052 ✓ 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 material: ALUMINUM, design_type: THREADED, thread_class: 2B, overall_diameter: 0.877 INCHES MINIMUM AND 0.883 INCHES MAXIMUM IN, inside_diameter_length: 0.668 INCHES MINIMUM AND 0.732 INCHES MAXIMUM IN, round_cap_outside_surface_condition: KNURLED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-377-3070, 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
H9052
NSN: 5340-00-377-3070
FSC: 5340
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
materialALUMINUM
design_typeTHREADED
thread_class2B
overall_diameter0.877 INCHES MINIMUM AND 0.883 INCHES MAXIMUM IN
inside_diameter_length0.668 INCHES MINIMUM AND 0.732 INCHES MAXIMUM IN
round_cap_outside_surface_conditionKNURLED
thread_size_and_series/type_designator7/8-18 NS OR 7/8-18 UNS NS
NSN5340-00-377-3070
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: H9052 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
•
OVERALL DIAMETER: 0.877 INCHES MINIMUM AND 0.883 INCHES MAXIMUM IN
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 7/8-18 NS OR 7/8-18 UNS NS
•
INSIDE DIAMETER LENGTH: 0.668 INCHES MINIMUM AND 0.732 INCHES MAXIMUM IN
•
ROUND CAP OUTSIDE SURFACE CONDITION: KNURLED
•
THREAD CLASS: 2B
•
MATERIAL: ALUMINUM
•
DESIGN TYPE: THREADED
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL DIAMETER0.877 INCHES MINIMUM AND 0.883 INCHES MAXIMUM IN
THREAD SIZE AND SERIES/TYPE DESIGNATOR7/8-18 NS OR 7/8-18 UNS NS
INSIDE DIAMETER LENGTH0.668 INCHES MINIMUM AND 0.732 INCHES MAXIMUM IN
ROUND CAP OUTSIDE SURFACE CONDITIONKNURLED
THREAD CLASS2B
MATERIALALUMINUM
DESIGN TYPETHREADED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
9052Upgraded Successor
successor cross-reference
successor
B9AF15520AInterchangeable
interchangeable cross-reference
interchangeable
5306Q5A7Interchangeable
interchangeable cross-reference
interchangeable
S1449648Interchangeable
interchangeable cross-reference
interchangeable
530601-06BG05A21S00000-0Interchangeable
interchangeable cross-reference
interchangeable
990989-02Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is H9052?
H9052 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace H9052?
There are 13 known substitutes for H9052: 9052, B9AF15520A, 5306Q5A7 and 10 more. Substitute compatibility should be verified for your specific system.
Is H9052 still available?
H9052 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