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MILG21032 — GASKET,SPIRAL WOUND

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

MILG21032: GASKET,SPIRAL WOUND.

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 part is cataloged in the U.S.

Government catalog 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
MILG21032
NSN: 5330-00-081-3241
NIINs: 000813241, 001717274, 002393757, 002393758, 003106425, 003106437, 007528543, 007528654, 007829441, 008122771, 008122772, 008191517, 008422362, 009145307, 009356173, 009896914, 010137863, 010381314, 010413615, 010414752, 010414776, 010416378, 010416391, 010419713, 010421247, 010421262, 010422832, 010422856, 010486123, 011810730, 011843794, 012065488, 012172955, 012213167, 012254215, 012342620, 012422712, 013087462, 013235583, 013240139, 013240141, 013240142, 013387782, 013387801, 013387805, 013387811, 013387813, 013387814, 013387816, 013387820, 013387840, 013387841, 013387843, 013387849, 013387872, 013387883, 013387888, 013387895, 013387897, 013387902, 013387903, 013387908, 013387909, 013387919, 013387927, 013450251, 013888835
FSC: 5330 — Packing and Gasket Materials
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: MILG21032 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
•
CROSS-SECTIONAL THICKNESS: 0.175 INCHES NOMINAL0.175 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CIRCULAR
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CROSS-SECTIONAL SHAPE STYLE: METAL WINDING W/ SOFT FILLERMETAL WINDING W/ SOFT FILLER
•
OUTSIDE DIAMETER: 1.688 INCHES NOMINAL1.688 INCHES NOMINAL IN
•
APERTURE DIAMETER: 1.312 INCHES NOMINAL1.312 INCHES NOMINAL IN
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE
•
MATERIAL: ASBESTOS AND STEEL OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.175 INCHES NOMINAL0.175 INCHES NOMINAL IN
STYLE DESIGNATORCIRCULAR
CROSS-SECTIONAL SHAPE STYLEMETAL WINDING W/ SOFT FILLERMETAL WINDING W/ SOFT FILLER
OUTSIDE DIAMETER1.688 INCHES NOMINAL1.688 INCHES NOMINAL IN
APERTURE DIAMETER1.312 INCHES NOMINAL1.312 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATA1 TYPE
MATERIALASBESTOS AND STEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MILG21032?
MILG21032 is a GASKET,SPIRAL WOUND.
What is the NSN for MILG21032?
MILG21032 is cataloged in the U.S. Government catalog under NSN 5330-00-081-3241. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.