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Technical Data Sheet
PartsTable / MRO / 450312
450312 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The COVER,CASE,REAR is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-154-8228, 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
MRO→ MRO_GENERAL→ 450312
NSN: 5330-00-154-8228
FSC: 5330
CAGE: 8E499 — KOEHRING CRANES AND EXCAVATORS INC SUB OF NORTHWEST ENGINEERING CO (USA)
SPECIFICATIONS
Part Number450312
NSN5330-00-154-8228
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 450312 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
21302Interchangeable
interchangeable cross-reference
interchangeable
207190Interchangeable
interchangeable cross-reference
interchangeable
450314Interchangeable
interchangeable cross-reference
interchangeable
52VH26Interchangeable
interchangeable cross-reference
interchangeable
55331Interchangeable
interchangeable cross-reference
interchangeable
B107.56Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 450312?
450312 is a COVER,CASE,REAR. It is classified as a MRO (MRO_GENERAL).
What parts can replace 450312?
There are 23 known substitutes for 450312: 21302, 207190, 450314 and 20 more. Substitute compatibility should be verified for your specific system.
Is 450312 still available?
450312 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