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7374940 — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

7374940: RETAINER,PACKING.

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include peripheral_diameter: 0.812 INCHES NOMINAL IN, center_hole_diameter: 0.650 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN, cross-sectional_height: 0.205 INCHES NOMINAL IN, cross-sectional_thickness: 0.156 INCHES MINIMUM AND 0.162 INCHES MAXIMUM IN, cross-sectional_shape_style: CUP. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-353-7400, 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
7374940
NSN: 5330-00-353-7400
FSC: 5330 — Packing and Gasket Materials
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
peripheral_diameter0.812 INCHES NOMINAL IN
center_hole_diameter0.650 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
cross-sectional_height0.205 INCHES NOMINAL IN
cross-sectional_thickness0.156 INCHES MINIMUM AND 0.162 INCHES MAXIMUM IN
cross-sectional_shape_styleCUP
NSN5330-00-353-7400
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7374940 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: 0.156 INCHES MINIMUM AND 0.162 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.205 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: CUP
•
PERIPHERAL DIAMETER: 0.812 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 0.650 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.156 INCHES MINIMUM AND 0.162 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.205 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLECUP
PERIPHERAL DIAMETER0.812 INCHES NOMINAL IN
CENTER HOLE DIAMETER0.650 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 3
MCS46AReference document
Same NSN cross-reference
Reference document — Secondary reference
1273429Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
119629Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7374940?
7374940 is a RETAINER,PACKING.
What parts can replace 7374940?
There are 3 known substitutes for 7374940: MCS46A, 1273429, 119629. Substitute compatibility should be verified for your specific system.
What is the NSN for 7374940?
7374940 is cataloged in the U.S. Government catalog under NSN 5330-00-353-7400. 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.