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Technical Data Sheet
7376721 ✓ 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 RETAINER,PACKING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, peripheral_diameter: 1.225 INCHES MINIMUM AND 1.235 INCHES MAXIMUM IN, center_hole_diameter: 0.377 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN, cross-sectional_height: 0.526 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN, cross-sectional_thickness: 0.361 INCHES NOMINAL IN, cross-sectional_shape_style: CUP. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-737-6721, 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
7376721
NSN: 5330-00-737-6721
FSC: 5330
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL OVERALL
peripheral_diameter1.225 INCHES MINIMUM AND 1.235 INCHES MAXIMUM IN
center_hole_diameter0.377 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
cross-sectional_height0.526 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
cross-sectional_thickness0.361 INCHES NOMINAL IN
cross-sectional_shape_styleCUP
NSN5330-00-737-6721
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7376721 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 HEIGHT: 0.526 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
MATERIAL: STEEL OVERALL
CENTER HOLE DIAMETER: 0.377 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLE: CUP
CROSS-SECTIONAL THICKNESS: 0.361 INCHES NOMINAL IN
PERIPHERAL DIAMETER: 1.225 INCHES MINIMUM AND 1.235 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.526 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
CENTER HOLE DIAMETER0.377 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLECUP
CROSS-SECTIONAL THICKNESS0.361 INCHES NOMINAL IN
PERIPHERAL DIAMETER1.225 INCHES MINIMUM AND 1.235 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
375808Interchangeable
interchangeable cross-reference
interchangeable
MDC 1079Interchangeable
interchangeable cross-reference
interchangeable
KC89-47Interchangeable
interchangeable cross-reference
interchangeable
802374-1Interchangeable
interchangeable cross-reference
interchangeable
CD4053BEInterchangeable
interchangeable cross-reference
interchangeable
28631-40097Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7376721?
7376721 is a RETAINER,PACKING.
What parts can replace 7376721?
There are 13 known substitutes for 7376721: 375808, MDC 1079, KC89-47 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7376721?
7376721 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-737-6721. This indicates validated use in U.S. government and defense supply chains.
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