PartsTable
Technical Data Sheet
ISR-27 ✓ 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 RING,WIPER is a the manufacturer industrial component. Key specifications include ring_style: CONCENTRIC, joint_style: DIAGONAL JOINT, inside_diameter: 2.750 INCHES NOMINAL IN, outside_diameter: 3.094 INCHES NOMINAL IN, material_thickness: 0.140 INCHES NOMINAL IN, fsc_application_data: HYDRAULIC SYSTEM,ACFT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-580-6061, 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
ISR-27
NSN: 5330-00-580-6061
FSC: 5330
CAGE: 95725 — INDUSTRIAL SUPPLIES (USA)
SPECIFICATIONS
ring_styleCONCENTRIC
joint_styleDIAGONAL JOINT
inside_diameter2.750 INCHES NOMINAL IN
outside_diameter3.094 INCHES NOMINAL IN
material_thickness0.140 INCHES NOMINAL IN
fsc_application_dataHYDRAULIC SYSTEM,ACFT
outer_edge_thickness0.109 INCHES NOMINAL IN
end_item_identificationW/S: MISSILE, LANCE; AIRCRAFT, F-16; AIRCRAFT, T-38; AIRCRAFT, F-16; DECK MACHINERY; SPRUANCE CLASS DD (963); KIDD CLASS DDG
cross-sectional_shape_styleOUTSIDE GROOVED, STRAIGHT FACE
NSN5330-00-580-6061
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: ISR-27 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
OUTSIDE DIAMETER: 3.094 INCHES NOMINAL IN
RING STYLE: CONCENTRIC
FSC APPLICATION DATA: HYDRAULIC SYSTEM,ACFT
TEST DATA DOCUMENT: 81349-MIL-S-5049 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
INSIDE DIAMETER: 2.750 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLE: OUTSIDE GROOVED, STRAIGHT FACE
JOINT STYLE: DIAGONAL JOINT
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER3.094 INCHES NOMINAL IN
RING STYLECONCENTRIC
FSC APPLICATION DATAHYDRAULIC SYSTEM,ACFT
TEST DATA DOCUMENT81349-MIL-S-5049 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
INSIDE DIAMETER2.750 INCHES NOMINAL IN
END ITEM IDENTIFICATIONW/S: MISSILE, LANCE; AIRCRAFT, F-16; AIRCRAFT, T-38; AIRCRAFT, F-16; DECK MACHINERY; SPRUANCE CLASS DD (963); KIDD CLASS DDG
CROSS-SECTIONAL SHAPE STYLEOUTSIDE GROOVED, STRAIGHT FACE
JOINT STYLEDIAGONAL JOINT
OUTER EDGE THICKNESS0.109 INCHES NOMINAL IN
MATERIAL THICKNESS0.140 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
A52491-75Interchangeable
interchangeable cross-reference
interchangeable
701Interchangeable
interchangeable cross-reference
interchangeable
A2027Interchangeable
interchangeable cross-reference
interchangeable
BS4-1903PC12Interchangeable
interchangeable cross-reference
interchangeable
BS4-1897PC12Interchangeable
interchangeable cross-reference
interchangeable
G27Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ISR-27?
ISR-27 is a RING,WIPER.
What parts can replace ISR-27?
There are 23 known substitutes for ISR-27: A52491-75, 701, A2027 and 20 more. Substitute compatibility should be verified for your specific system.
Is ISR-27 still available?
ISR-27 is currently cancelled.
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