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121924 — ACTUATOR,ELECTROMECHANICAL,ROTAR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

121924: ACTUATOR,ELECTROMECHANICAL,ROTAR.

ACTUATOR,ELECTROMECHANICAL,ROTAR. Key specifications include material: ASBESTOS AND STEEL OVERALL, hole_diameter: 0.500 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 4.500 INCHES NOMINAL IN, aperture_diameter: 2.188 INCHES NOMINAL IN, bolt_circle_diameter: 3.562 INCHES NOMINAL IN, outside_corner_radius: 0.469 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-318-9010, 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
121924
NSN: 5330-00-318-9010
NIINs: 003189010, 012212154
FSC: 5330 — Packing and Gasket Materials
CAGE: 08683 — BROCKWAY MOTOR TRUCKS DIV OF MACK TRUCKS INC (USA)
SPECIFICATIONS
materialASBESTOS AND STEEL OVERALL
hole_diameter0.500 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width4.500 INCHES NOMINAL IN
aperture_diameter2.188 INCHES NOMINAL IN
bolt_circle_diameter3.562 INCHES NOMINAL IN
outside_corner_radius0.469 INCHES NOMINAL IN
cross-sectional_thickness0.062 INCHES NOMINAL IN
cross-sectional_shape_styleMETAL AND METALLIC MATERIALS
side_radius_from_gasket_center1.562 INCHES NOMINAL IN
NSN5330-00-318-9010
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 121924 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
•
CROSS-SECTIONAL THICKNESS: 0.062 INCHES NOMINAL IN
•
SIDE RADIUS FROM GASKET CENTER: 1.562 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: METAL AND METALLIC MATERIALS
•
APERTURE DIAMETER: 2.188 INCHES NOMINAL IN
•
BOLT CIRCLE DIAMETER: 3.562 INCHES NOMINAL IN
•
OUTSIDE CORNER RADIUS: 0.469 INCHES NOMINAL IN
•
MATERIAL: ASBESTOS AND STEEL OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.062 INCHES NOMINAL IN
SIDE RADIUS FROM GASKET CENTER1.562 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEMETAL AND METALLIC MATERIALS
OVERALL WIDTH4.500 INCHES NOMINAL IN
APERTURE DIAMETER2.188 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER3.562 INCHES NOMINAL IN
OUTSIDE CORNER RADIUS0.469 INCHES NOMINAL IN
MATERIALASBESTOS AND STEEL OVERALL
HOLE DIAMETER0.500 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
SUBSTITUTES & CROSS-REFERENCES 6
C141-4-8Reference document
Same NSN cross-reference
Reference document — Secondary reference
2241Reference document
Same NSN cross-reference
Reference document — Secondary reference
FG670GReference document
Same NSN cross-reference
Reference document — Secondary reference
10116Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
7540211Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
1110382001Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 121924?
121924 is a ACTUATOR,ELECTROMECHANICAL,ROTAR.
What parts can replace 121924?
There are 6 known substitutes for 121924: C141-4-8, 2241, FG670G and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 121924?
121924 is cataloged in the U.S. Government catalog under NSN 5330-00-318-9010. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.