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PartsTable / COMPONENT / MS51001-12-2
MS51001-12-2 ✓ 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 ENCASED is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC SEALING ELEMENT, case_style: RECESSED, seal_width: 0.110 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN, housing_bore_diameter: 1.375 INCHES NOMINAL IN, sealing_element_style: ANGULAR, accommodated_shaft_diameter: 0.937 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-135-4173, 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
MS51001-12-2
NSN: 5330-01-135-4173
FSC: 5330
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialRUBBER SYNTHETIC SEALING ELEMENT
case_styleRECESSED
seal_width0.110 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
housing_bore_diameter1.375 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter0.937 INCHES NOMINAL IN
NSN5330-01-135-4173
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS51001-12-2 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
•
CASE STYLE: RECESSED
•
ACCOMMODATED SHAFT DIAMETER: 0.937 INCHES NOMINAL IN
•
HOUSING BORE DIAMETER: 1.375 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: ANGULAR
•
MATERIAL: RUBBER SYNTHETIC SEALING ELEMENT
•
SEAL WIDTH: 0.110 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CASE STYLERECESSED
ACCOMMODATED SHAFT DIAMETER0.937 INCHES NOMINAL IN
HOUSING BORE DIAMETER1.375 INCHES NOMINAL IN
SEALING ELEMENT STYLEANGULAR
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
SEAL WIDTH0.110 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
AA52524/13-27-3Interchangeable
interchangeable cross-reference
interchangeable
A-A-52524/13Interchangeable
interchangeable cross-reference
interchangeable
MS51001-27-3Interchangeable
interchangeable cross-reference
interchangeable
AA52524/13-1-3Interchangeable
interchangeable cross-reference
interchangeable
AA52524-13-1-3Interchangeable
interchangeable cross-reference
interchangeable
MS51001-11-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS51001-12-2?
MS51001-12-2 is a SEAL,PLAIN ENCASED.
What parts can replace MS51001-12-2?
There are 23 known substitutes for MS51001-12-2: AA52524/13-27-3, A-A-52524/13, MS51001-27-3 and 20 more. Substitute compatibility should be verified for your specific system.
Is MS51001-12-2 still available?
MS51001-12-2 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