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Technical Data Sheet
PartsTable / O-RING / H0657
H0657 ✓ 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 O-RING is a the manufacturer industrial component. Key specifications include end_item_identification: AIR FORCE SUB-SCALE AERIAL TARGET (AFSAT), part_name_assigned_by_controlling_agency: O-RING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-542-9194, 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
H0657
NSN: 5331-01-542-9194
FSC: 5331 — O-RING
CAGE: 7J998 — KRATOS UNMANNED AERIAL SYSTEMS, INC DIV UNMANNED SYSTEMS DIVISION (USA)
SPECIFICATIONS
end_item_identificationAIR FORCE SUB-SCALE AERIAL TARGET (AFSAT)
part_name_assigned_by_controlling_agencyO-RING
NSN5331-01-542-9194
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: H0657 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
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONAIR FORCE SUB-SCALE AERIAL TARGET (AFSAT)
PART NAME ASSIGNED BY CONTROLLING AGENCYO-RING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
MS17970Interchangeable
interchangeable cross-reference
interchangeable
5575Interchangeable
interchangeable cross-reference
interchangeable
6005575Interchangeable
interchangeable cross-reference
interchangeable
65575Interchangeable
interchangeable cross-reference
interchangeable
1257-1Interchangeable
interchangeable cross-reference
interchangeable
1257IInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is H0657?
H0657 is a O-RING.
What parts can replace H0657?
There are 20 known substitutes for H0657: MS17970, 5575, 6005575 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for H0657?
H0657 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-542-9194. 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