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373-002 ✓ Verified by PartsTable
Legrand · 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 CASE,ACCESSORY,POWER UNIT is a Legrand industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-154-4163, 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
373-002
NSN: 5330-00-154-4163
FSC: 5330
CAGE: 14892 — BENDIX CORP THE BRAKE AND STEERING DIV (USA)
SPECIFICATIONS
general_characteristics_item_descriptionMAJOR COMPONENTS: JET GR OILING CRES 303 AN-S-771 COND A,BUSHING SHAFT BRONZE QQ-A-630 COMP,CARRIER ASSY,CASE MAG ALY AZ91-HTA QQ-M-56
NSN5330-00-154-4163
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 373-002 MFR: Legrand ⚠ 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
•
SEAL WIDTH: 0.375 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: ANGULAR
•
HOUSING BORE DIAMETER: 0.999 INCHES NOMINAL IN
•
MATERIAL: LEATHER SEALING ELEMENT
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 0.375 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
TECHNICAL CHARACTERISTICS (FLIS)
SEAL WIDTH0.375 INCHES NOMINAL IN
SEALING ELEMENT STYLEANGULAR
HOUSING BORE DIAMETER0.999 INCHES NOMINAL IN
MATERIALLEATHER SEALING ELEMENT
MATERIALSTEEL CASE
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER0.375 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
373-002Interchangeable
interchangeable cross-reference
interchangeable
MS20392-5-25Interchangeable
interchangeable cross-reference
interchangeable
NASM5673Interchangeable
interchangeable cross-reference
interchangeable
47551Interchangeable
interchangeable cross-reference
interchangeable
3773Interchangeable
interchangeable cross-reference
interchangeable
240-6700-1038967REVAPC2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 373-002?
373-002 is a CASE,ACCESSORY,POWER UNIT manufactured by Legrand.
What parts can replace 373-002?
There are 10 known substitutes for 373-002: 373-002, MS20392-5-25, NASM5673 and 7 more. Substitute compatibility should be verified for your specific system.
Is 373-002 still available?
373-002 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026