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Technical Data Sheet
PartsTable / COMPONENT / MIL-G-21032
MIL-G-21032 ✓ 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 GASKET,SPIRAL WOUND is a the manufacturer industrial component. Key specifications include material: STEEL OUTER RING, temp_rating: 1050.0 FAHRENHEIT1050.0 FAHRENHEIT DEGF, outside_diameter: 20.719 INCHES NOMINAL20.719 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 18.500 INCHES NOMINAL18.500 INCHES NOMINAL IN, gage_ring_thickness: 0.117 INCHES MINIMUM AND 0.117 INCHES MINIMUM AND 0.131 INCHES MAXIMUM0.131 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 5330-00-081-3241, 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
MIL-G-21032
NSN: 5330-00-081-3241
FSC: 5330
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL OUTER RING
temp_rating1050.0 FAHRENHEIT1050.0 FAHRENHEIT DEGF
outside_diameter20.719 INCHES NOMINAL20.719 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter18.500 INCHES NOMINAL18.500 INCHES NOMINAL IN
gage_ring_thickness0.117 INCHES MINIMUM AND 0.117 INCHES MINIMUM AND 0.131 INCHES MAXIMUM0.131 INCHES MAXIMUM IN
bearing_surface_width1.110 INCHES NOMINAL1.110 INCHES NOMINAL IN
maximum_pressure_rating400.0 POUNDS PER SQUARE INCH (PSI)400.0 POUNDS PER SQUARE INCH (PSI) LBS
cross-sectional_thickness0.170 INCHES MINIMUM AND 0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM0.180 INCHES MAXIMUM IN
gage_ring_outside_diameter23.375 INCHES NOMINAL23.375 INCHES NOMINAL IN
cross-sectional_shape_styleMETAL WINDING W/ SOFT FILLER AND OUTER RINGMETAL WINDING W/ SOFT FILLER AND OUTER RING
nondefinitive_spec/std_data2 TYPE AND A CLASS AND IPS18 SIZE AND 400 SERIES
NSN5330-00-081-3241
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MIL-G-21032 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: 1.688 INCHES NOMINAL1.688 INCHES NOMINAL IN
•
APERTURE DIAMETER: 1.312 INCHES NOMINAL1.312 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.175 INCHES NOMINAL0.175 INCHES NOMINAL IN
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE
•
CROSS-SECTIONAL SHAPE STYLE: METAL WINDING W/ SOFT FILLERMETAL WINDING W/ SOFT FILLER
•
STYLE DESIGNATOR: CIRCULAR
•
MATERIAL: ASBESTOS AND STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER1.688 INCHES NOMINAL1.688 INCHES NOMINAL IN
APERTURE DIAMETER1.312 INCHES NOMINAL1.312 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.175 INCHES NOMINAL0.175 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATA1 TYPE
CROSS-SECTIONAL SHAPE STYLEMETAL WINDING W/ SOFT FILLERMETAL WINDING W/ SOFT FILLER
STYLE DESIGNATORCIRCULAR
MATERIALASBESTOS AND STEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
400325Interchangeable
interchangeable cross-reference
interchangeable
755Interchangeable
interchangeable cross-reference
interchangeable
9319Interchangeable
interchangeable cross-reference
interchangeable
33310-3PC7,3/8INInterchangeable
interchangeable cross-reference
interchangeable
33310-3PC7,3/4INInterchangeable
interchangeable cross-reference
interchangeable
M24716TYI53711-5787605-020Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-G-21032?
MIL-G-21032 is a GASKET,SPIRAL WOUND.
What parts can replace MIL-G-21032?
There are 7 known substitutes for MIL-G-21032: 400325, 755, 9319 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-G-21032?
MIL-G-21032 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-081-3241. 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