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Technical Data Sheet
PartsTable / COMPONENT / 810277
810277 ✓ 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

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: STEEL, design_type: SOLID, end_diameter: 0.7810 INCHES NOMINAL IN, bore_diameter: 0.4480 INCHES MINIMUM AND 0.4580 INCHES MAXIMUM IN, overall_height: 0.6090 INCHES MINIMUM AND 0.6190 INCHES MAXIMUM IN, special_features: AMTL-STEEL ASTM A576,GRADE 1019. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-624-3638, 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
810277
NSN: 5340-00-624-3638
FSC: 5340
CAGE: 64104 — DRESSER, LLC (USA)
SPECIFICATIONS
materialSTEEL
design_typeSOLID
end_diameter0.7810 INCHES NOMINAL IN
bore_diameter0.4480 INCHES MINIMUM AND 0.4580 INCHES MAXIMUM IN
overall_height0.6090 INCHES MINIMUM AND 0.6190 INCHES MAXIMUM IN
special_featuresAMTL-STEEL ASTM A576,GRADE 1019
style_designatorSEAT
features_providedCASEHARDENED
first_step_length0.1620 INCHES MINIMUM AND 0.1920 INCHES MAXIMUM IN
counterbore_length0.4850 INCHES MINIMUM AND 0.5150 INCHES MAXIMUM IN
first_step_diameter0.9450 INCHES MINIMUM AND 0.9510 INCHES MAXIMUM IN
counterbore_diameter0.5820 INCHES MINIMUM AND 0.5880 INCHES MAXIMUM IN
NSN5340-00-624-3638
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 810277 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
•
COUNTERSINK DIAMETER: 0.6540 INCHES MINIMUM AND 0.6600 INCHES MAXIMUM IN
•
END DIAMETER: 0.7810 INCHES NOMINAL IN
•
DESIGN TYPE: SOLID
•
COUNTERBORE LENGTH: 0.4850 INCHES MINIMUM AND 0.5150 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SEAT
•
FSC APPLICATION DATA: CYLINDER HEAD ASSEMBLY,GASOLINE ENGINE,NON-AIRCRAFT
•
DISTANCE FROM END TO FIRST STEP: 0.3130 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
COUNTERSINK DIAMETER0.6540 INCHES MINIMUM AND 0.6600 INCHES MAXIMUM IN
END DIAMETER0.7810 INCHES NOMINAL IN
DESIGN TYPESOLID
COUNTERBORE LENGTH0.4850 INCHES MINIMUM AND 0.5150 INCHES MAXIMUM IN
STYLE DESIGNATORSEAT
SPECIAL FEATURESAMTL-STEEL ASTM A576,GRADE 1019
FSC APPLICATION DATACYLINDER HEAD ASSEMBLY,GASOLINE ENGINE,NON-AIRCRAFT
DISTANCE FROM END TO FIRST STEP0.3130 INCHES NOMINAL IN
FEATURES PROVIDEDCASEHARDENED
MATERIALSTEEL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
AS3208-24Interchangeable
interchangeable cross-reference
interchangeable
3-24 V747-75Interchangeable
interchangeable cross-reference
interchangeable
2306990 REV J IT NO 168Interchangeable
interchangeable cross-reference
interchangeable
000-605-1024Interchangeable
interchangeable cross-reference
interchangeable
D65186 AND R52998Interchangeable
interchangeable cross-reference
interchangeable
9100C2008Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 810277?
810277 is a SEAT,HELICAL COMPRESSION SPRING.
What parts can replace 810277?
There are 11 known substitutes for 810277: AS3208-24, 3-24 V747-75, 2306990 REV J IT NO 168 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 810277?
810277 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-624-3638. 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