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Technical Data Sheet
MIL-A-7021 ✓ 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 ASBESTOS SHEET,COMPRESSED is a the manufacturer industrial component. Key specifications include color: NO COLOR SPECIFIED BOTH SIDES, width: 0.500 INCHES NOMINAL IN, length: 24.000 INCHES NOMINAL IN, material: ASBESTOS AND RUBBER NATURAL AND RUBBER SYNTHETIC LOCATION NOT OTHERWISE SPECIFIED, thickness: 0.125 INCHES NOMINAL IN, environmental_protection: COOLANT AND FUEL RESISTANT AND HIGH TEMPERATURE AND LUBRICANT AND WATER RESISTANT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-297-1982, 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-A-7021
NSN: 5330-00-297-1982
FSC: 5330
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
colorNO COLOR SPECIFIED BOTH SIDES
width0.500 INCHES NOMINAL IN
length24.000 INCHES NOMINAL IN
materialASBESTOS AND RUBBER NATURAL AND RUBBER SYNTHETIC LOCATION NOT OTHERWISE SPECIFIED
thickness0.125 INCHES NOMINAL IN
environmental_protectionCOOLANT AND FUEL RESISTANT AND HIGH TEMPERATURE AND LUBRICANT AND WATER RESISTANT
NSN5330-00-297-1982
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MIL-A-7021 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
THICKNESS: 0.062 INCHES NOMINAL IN
MATERIAL: ASBESTOS AND RUBBER NATURAL OR RUBBER SYNTHETIC LOCATION NOT OTHERWISE SPECIFIED
NONDEFINITIVE SPEC/STD DATA: 1 CLASS AND ROLL FORM
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-A-7021, CLASS 1 MIL SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
WIDTH: 36.000 INCHES NOMINAL IN
LENGTH: 63.000 INCHES NOMINAL IN
MINIMUM TENSILE STRENGTH: ERR-060
TECHNICAL CHARACTERISTICS (FLIS)
THICKNESS0.062 INCHES NOMINAL IN
MATERIALASBESTOS AND RUBBER NATURAL OR RUBBER SYNTHETIC LOCATION NOT OTHERWISE SPECIFIED
MATERIALRUBBER SYNTHETIC BINDER
NONDEFINITIVE SPEC/STD DATA1 CLASS AND ROLL FORM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-A-7021, CLASS 1 MIL SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
WIDTH36.000 INCHES NOMINAL IN
LENGTH63.000 INCHES NOMINAL IN
MINIMUM TENSILE STRENGTHERR-060
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
9459K1Interchangeable
interchangeable cross-reference
interchangeable
MILA7021Interchangeable
interchangeable cross-reference
interchangeable
AMS3232Interchangeable
interchangeable cross-reference
interchangeable
3313Interchangeable
interchangeable cross-reference
interchangeable
7228 39052 2433Interchangeable
interchangeable cross-reference
interchangeable
7228Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-A-7021?
MIL-A-7021 is a ASBESTOS SHEET,COMPRESSED.
What parts can replace MIL-A-7021?
There are 10 known substitutes for MIL-A-7021: 9459K1, MILA7021, AMS3232 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-A-7021?
MIL-A-7021 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-297-1982. This indicates validated use in U.S. government and defense supply chains.
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