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PartsTable / COMPONENT / MS51001-27-3
MS51001-27-3 ✓ 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: STEEL CASE, case_style: RECESSED, seal_width: 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN, temp_rating: -65.0 FAHRENHEIT AND 300.0 FAHRENHEIT DEGF, surface_treatment: ZINC AND CHROMATE CASE, housing_bore_diameter: 2.502 INCHES NOMINAL 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 5330-00-020-0205, 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
MS51001-27-3
NSN: 5330-00-020-0205
FSC: 5330
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL CASE
case_styleRECESSED
seal_width0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
temp_rating-65.0 FAHRENHEIT AND 300.0 FAHRENHEIT DEGF
surface_treatmentZINC AND CHROMATE CASE
housing_bore_diameter2.502 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter1.875 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed1740 FEET PER MINUTE FT
surface_treatment_document_and_classificationQQ-Z-325,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE CASE
NSN5330-00-020-0205
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS51001-27-3 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
•
ACCOMMODATED SHAFT DIAMETER: 1.875 INCHES NOMINAL IN
•
SEAL WIDTH: 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
•
MATERIAL: RUBBER SYNTHETIC SEALING ELEMENT
•
SEALING ELEMENT STYLE: ANGULAR
•
TEMP RATING: -65.0 FAHRENHEIT AND 300.0 FAHRENHEIT DEGF
•
CASE STYLE: RECESSED
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-Z-325,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE CASE
TECHNICAL CHARACTERISTICS (FLIS)
ACCOMMODATED SHAFT DIAMETER1.875 INCHES NOMINAL IN
SEAL WIDTH0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
SEALING ELEMENT STYLEANGULAR
TEMP RATING-65.0 FAHRENHEIT AND 300.0 FAHRENHEIT DEGF
CASE STYLERECESSED
MATERIALSTEEL CASE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-Z-325,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE CASE
ACCOMMODATED SHAFT MAXIMUM RATED SPEED1740 FEET PER MINUTE FT
SURFACE TREATMENTZINC AND CHROMATE CASE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
AA52524/13-1-3Interchangeable
interchangeable cross-reference
interchangeable
A-A-52524/13Interchangeable
interchangeable cross-reference
interchangeable
AA52524-13-1-3Interchangeable
interchangeable cross-reference
interchangeable
MS51001-11-2Interchangeable
interchangeable cross-reference
interchangeable
AA52524/13-11-2Interchangeable
interchangeable cross-reference
interchangeable
MS 51001-12-3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS51001-27-3?
MS51001-27-3 is a SEAL,PLAIN ENCASED.
What parts can replace MS51001-27-3?
There are 23 known substitutes for MS51001-27-3: AA52524/13-1-3, A-A-52524/13, AA52524-13-1-3 and 20 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS51001-27-3?
MS51001-27-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-020-0205. 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