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Technical Data Sheet
PartsTable / COMPONENT / 7551-6
7551-6 ✓ Verified by PartsTable
Hama · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include end_item_name: TOWING TRACTOR, end_item_source: 10695, end_item_identification: MODEL SM340-F-A9, nonsupply_items_and_quantities: BRAKE SHOE AND LINING 4. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-186-3416, 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
7551-6
NSN: 5340-00-186-3416
FSC: 5340
CAGE: 83930 — TRANSDIGM INC DBA ADEL WIGGINS GROUP DIV ADEL WIGGINS (USA)
SPECIFICATIONS
end_item_nameTOWING TRACTOR
end_item_source10695
component_quantity4
end_item_identificationMODEL SM340-F-A9
nonsupply_items_and_quantitiesBRAKE SHOE AND LINING 4
NSN5340-00-186-3416
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7551-6 MFR: Hama ⚠ 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/5 FED SPEC SINGLE MATERIAL RESPONSE BAND
•
TONGUE HOLE TYPE: ROUND, UNTHREADED
•
MATERIAL THICKNESS: 0.051 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SINGLE LOOP
•
MATERIAL: ALUMINUM ALLOY 2024 BAND
•
DIAMETER: 0.204 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/5 FED SPEC SINGLE MATERIAL RESPONSE BAND
TONGUE HOLE TYPEROUND, UNTHREADED
MATERIAL THICKNESS0.051 INCHES NOMINAL IN
OVERALL WIDTH0.500 INCHES NOMINAL IN
STYLE DESIGNATORSINGLE LOOP
MATERIALALUMINUM ALLOY 2024 BAND
DIAMETER0.204 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/5 FED SPEC SINGLE MATERIAL RESPONSE BAND
LOOP INSIDE DIAMETER1.000 INCHES NOMINAL IN
STYLE DESIGNATORSINGLE LOOP
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
MILC8603Upgraded Successor
successor cross-reference
successor
99122Upgraded Successor
successor cross-reference
successor
MS21919G8Upgraded Successor
successor cross-reference
successor
5096D16Upgraded Successor
successor cross-reference
successor
534002989402Upgraded Successor
successor cross-reference
successor
MS21919G11Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7551-6?
7551-6 is a CONNECTOR,RECEPTACLE,ELECTRICAL manufactured by Hama.
What parts can replace 7551-6?
There are 24 known substitutes for 7551-6: MILC8603, 99122, MS21919G8 and 21 more. Substitute compatibility should be verified for your specific system.
Is 7551-6 still available?
7551-6 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