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Technical Data Sheet
PartsTable / COMPONENT / D612
D612 ✓ 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

RESISTOR,FIXED,WIRE WOUND,INDUCT. Key specifications include material: CORK OVERALL, temp_rating: 212.0 FAHRENHEIT DEGF, hole_diameter: 0.531 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, hardness_rating: 90.0 SHORE DUROMETER A NOMINAL, outside_diameter: 9.500 INCHES NOMINAL IN, style_designator: CIRCULAR. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-245-5494, 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
D612
NSN: 5330-00-245-5494
FSC: 5330
CAGE: 59690 — KOEHRING CO LORAIN DIV (USA)
SPECIFICATIONS
materialCORK OVERALL
temp_rating212.0 FAHRENHEIT DEGF
hole_diameter0.531 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
hardness_rating90.0 SHORE DUROMETER A NOMINAL
outside_diameter9.500 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter7.250 INCHES NOMINAL IN
bolt_hole_quantity6
bolt_circle_diameter8.250 INCHES NOMINAL IN
center_hole_diameter0.918 INCHES MINIMUM AND 0.930 INCHES MAXIMUM IN
cross-sectional_height0.112 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
end_item_identificationMULTIPLE LAUNCH ROCKET SYSTEM (MLRS); A4 BRADLEY FIGHTING VEHICLE; A3 BRADLEY FIGHTING VEHICLE; ARMORED MULTI-PURPOSE VEHICLE (AMPV).
NSN5330-00-245-5494
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: D612 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
•
TEMP RATING: 212.0 FAHRENHEIT DEGF
•
OUTSIDE DIAMETER: 9.500 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 6
•
HOLE DIAMETER: 0.531 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
APERTURE DIAMETER: 7.250 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.094 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CIRCULAR
•
BOLT CIRCLE DIAMETER: 8.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
TEMP RATING212.0 FAHRENHEIT DEGF
OUTSIDE DIAMETER9.500 INCHES NOMINAL IN
BOLT HOLE QUANTITY6
HOLE DIAMETER0.531 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
APERTURE DIAMETER7.250 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.094 INCHES NOMINAL IN
STYLE DESIGNATORCIRCULAR
BOLT CIRCLE DIAMETER8.250 INCHES NOMINAL IN
MATERIALCORK OVERALL
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
5-131-04-024-00Interchangeable
interchangeable cross-reference
interchangeable
AMS-P-5510Interchangeable
interchangeable cross-reference
interchangeable
0921206-9Interchangeable
interchangeable cross-reference
interchangeable
DL6TInterchangeable
interchangeable cross-reference
interchangeable
M15Interchangeable
interchangeable cross-reference
interchangeable
D612Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D612?
D612 is a RESISTOR,FIXED,WIRE WOUND,INDUCT.
What parts can replace D612?
There are 9 known substitutes for D612: 5-131-04-024-00, AMS-P-5510, 0921206-9 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for D612?
D612 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-245-5494. 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