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Technical Data Sheet
SP780-105 ✓ 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 PLUG ASSEMBLY,SEALING 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 5340-01-009-4974, 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
SP780-105
NSN: 5340-01-009-4974
FSC: 5340
CAGE: 76050 — EATON AEROSPACE LLC DBA STERER ENGINEERING DIV M.C.AEROSPACE (USA)
SPECIFICATIONS
Part NumberSP780-105
NSN5340-01-009-4974
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: SP780-105 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)
SPECIAL FEATURESALUMINUM 2024-T4 PER QQ-A-225, CONSISTS OF A PLUG AND PIN, PLUG FINISH IS ANODIZE PER MIL-A-8625, TYPE 2, PIN FINISH IS ALODINE PER MIL-C-5541, 0.218 IN. MIN TO 0.219 MAX PLUG DIA, 0.180 IN. MIN TO 0.194 IN. MAX PLUG LG, PLUG CONTAINS A TAPERED BORE TO ACCOMMODATE PIN, 0.157 IN. MIN TO 0.177 IN. MAX BORE DEPTH, 0.170 IN. MIN TO 0.180 IN. MAX PIN DIA, 0.140 IN. MIN TO 0.149 IN. MAX PIN LG, PIN CONTAINS A VENT HOLE THRU 0.040 IN. VENT HOLE DIA, PLUG AND PIN ARE BOTH CHAMFERED IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
GP525A7AInterchangeable
interchangeable cross-reference
interchangeable
S8-218101Interchangeable
interchangeable cross-reference
interchangeable
218101Interchangeable
interchangeable cross-reference
interchangeable
6309998Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SP780-105?
SP780-105 is a PLUG ASSEMBLY,SEALING.
What parts can replace SP780-105?
There are 4 known substitutes for SP780-105: GP525A7A, S8-218101, 218101 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SP780-105?
SP780-105 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-009-4974. This indicates validated use in U.S. government and defense supply chains.
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