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PartsTable / COMPONENT / MILS45005
MILS45005 ✓ 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 SEAL,PLAIN is a the manufacturer industrial component. Key specifications include material: STEEL CASE, case_style: SQUARE, seal_width: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN, housing_bore_diameter: 2.877 INCHES MINIMUM AND 2.881 INCHES MAXIMUM IN, sealing_element_style: ANGULAR, accommodated_shaft_diameter: 2.154 INCHES MINIMUM AND 2.158 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-678-3225, 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
MILS45005
NSN: 5330-00-678-3225
FSC: 5330
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL CASE
case_styleSQUARE
seal_width0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
housing_bore_diameter2.877 INCHES MINIMUM AND 2.881 INCHES MAXIMUM IN
sealing_element_styleANGULAR
accommodated_shaft_diameter2.154 INCHES MINIMUM AND 2.158 INCHES MAXIMUM IN
nondefinitive_spec/std_data3 CLASS
accommodated_shaft_maximum_rated_speed1863 FEET PER MINUTE FT
NSN5330-00-678-3225
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MILS45005 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
•
MATERIAL: RUBBER SYNTHETIC SEALING ELEMENT
•
ACCOMMODATED SHAFT DIAMETER: 4.250 INCHES NOMINAL IN
•
CONSTRUCTION: SPLIT
•
SEAL WIDTH: 0.575 INCHES MINIMUM AND 0.605 INCHES MAXIMUM IN
•
HOUSING BORE DIAMETER: 5.250 INCHES NOMINAL IN
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND 2 CLASS
•
CROSS-SECTIONAL SHAPE STYLE: SINGLE LIP
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
ACCOMMODATED SHAFT DIAMETER4.250 INCHES NOMINAL IN
CONSTRUCTIONSPLIT
SEAL WIDTH0.575 INCHES MINIMUM AND 0.605 INCHES MAXIMUM IN
HOUSING BORE DIAMETER5.250 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 2 CLASS
MATERIALSTEEL SPRING
CROSS-SECTIONAL SHAPE STYLESINGLE LIP
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
303356Interchangeable
interchangeable cross-reference
interchangeable
10887434Interchangeable
interchangeable cross-reference
interchangeable
TYPEICLASS2Interchangeable
interchangeable cross-reference
interchangeable
MILS45005Interchangeable
interchangeable cross-reference
interchangeable
10947340-2Interchangeable
interchangeable cross-reference
interchangeable
A-A-52524Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MILS45005?
MILS45005 is a SEAL,PLAIN.
What parts can replace MILS45005?
There are 16 known substitutes for MILS45005: 303356, 10887434, TYPEICLASS2 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MILS45005?
MILS45005 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-678-3225. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026