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Technical Data Sheet
PartsTable / COMPONENT / SP1078-US2C-2 1/2 IN
SP1078-US2C-2 1/2 IN ✓ 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 SP1078-US2C-2 1/2 IN 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 5340-00-240-2307, 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
SP1078-US2C-2 1/2 IN
NSN: 5340-00-240-2307
FSC: 5340
CAGE: 63204 — STANLEY INDUSTRIAL HARDWARE DIV THE STANLEY WORKS (USA)
SPECIFICATIONS
Part NumberSP1078-US2C-2 1/2 IN
NSN5340-00-240-2307
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: SP1078-US2C-2 1/2 IN 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
•
DEPARTURE FROM CITED DESIGNATOR: VCBV
•
NONDEFINITIVE SPEC/STD DATA: 1011C TYPE
•
FEATURES PROVIDED: SCREW
•
LENGTH: 2.500 INCHES NOMINAL PLATE IN
•
STRIKE TYPE: RIM
•
STRIKE QUANTITY: 1
TECHNICAL CHARACTERISTICS (FLIS)
DEPARTURE FROM CITED DESIGNATORVCBV
NONDEFINITIVE SPEC/STD DATA1011C TYPE
FEATURES PROVIDEDSCREW
SPECIAL FEATURESWEIGHT:1.750 LBS PER DOZEN;BAR O/A LG:2.500 IN.NOM;MATL:STEEL; LBS
END ITEM IDENTIFICATIONW/S:STRATEGIC WEAPON SYSTEMS (PSEIDON AND TRIDENT)
LENGTH2.500 INCHES NOMINAL PLATE IN
STRIKE TYPERIM
STRIKE QUANTITY1
WIDTH1.000 INCHES NOMINAL PLATE IN
DIAMETER0.250 INCHES NOMINAL BAR IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
N117-986Upgraded Successor
successor cross-reference
successor
FF-H-111Upgraded Successor
successor cross-reference
successor
A-A-462Upgraded Successor
successor cross-reference
successor
320432Upgraded Successor
successor cross-reference
successor
320441Upgraded Successor
successor cross-reference
successor
BHMA-A156.20 A83162 3-1/4INUpgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SP1078-US2C-2 1/2 IN?
SP1078-US2C-2 1/2 IN is a SP1078-US2C-2 1/2 IN.
What parts can replace SP1078-US2C-2 1/2 IN?
There are 14 known substitutes for SP1078-US2C-2 1/2 IN: N117-986, FF-H-111, A-A-462 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SP1078-US2C-2 1/2 IN?
SP1078-US2C-2 1/2 IN is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-240-2307. 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