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Technical Data Sheet
2640-697X1PC25 ✓ 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 PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include color: BLACK, material: RUBBER FLUOROCARBON CLASS FPM OVERALL, temp_rating: -30.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF, hardness_rating: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM OVERALL, center_hole_diameter: 6.194 INCHES MINIMUM AND 6.274 INCHES MAXIMUM IN, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-021-6288, 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
2640-697X1PC25
NSN: 5330-01-021-6288
FSC: 5330
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
colorBLACK
materialRUBBER FLUOROCARBON CLASS FPM OVERALL
temp_rating-30.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF
hardness_rating70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM OVERALL
center_hole_diameter6.194 INCHES MINIMUM AND 6.274 INCHES MAXIMUM IN
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
cross-sectional_shape_styleO-RING
material_document_and_classificationMIL-R-83248 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
reference_number_differentiating_characteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
NSN5330-01-021-6288
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2640-697X1PC25 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
HARDNESS RATING: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM OVERALL
CROSS-SECTIONAL SHAPE STYLE: O-RING
COLOR: BLACK
MATERIAL: RUBBER FLUOROCARBON CLASS FPM OVERALL
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-83248 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
TEMP RATING: -30.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF
TECHNICAL CHARACTERISTICS (FLIS)
HARDNESS RATING70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM OVERALL
CROSS-SECTIONAL SHAPE STYLEO-RING
COLORBLACK
MATERIALRUBBER FLUOROCARBON CLASS FPM OVERALL
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-83248 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
TEMP RATING-30.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF
CENTER HOLE DIAMETER6.194 INCHES MINIMUM AND 6.274 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
10186308Interchangeable
interchangeable cross-reference
interchangeable
2-259V1226-75Interchangeable
interchangeable cross-reference
interchangeable
S9413-259Interchangeable
interchangeable cross-reference
interchangeable
2620-241 PC 362Interchangeable
Same NIIN cross-reference
interchangeable
2650-241, PC 362Interchangeable
Same NIIN cross-reference
interchangeable
M83248-1-259Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2640-697X1PC25?
2640-697X1PC25 is a PACKING,PREFORMED.
What parts can replace 2640-697X1PC25?
There are 7 known substitutes for 2640-697X1PC25: 10186308, 2-259V1226-75, S9413-259 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2640-697X1PC25?
2640-697X1PC25 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-021-6288. This indicates validated use in U.S. government and defense supply chains.
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