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Technical Data Sheet
PartsTable / COMPONENT / 1DQ21A
1DQ21A ✓ 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 SET is a the manufacturer industrial component. Key specifications include component_quantity: 22. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-720-4773, 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
1DQ21A
NSN: 5330-00-720-4773
FSC: 5330
CAGE: 23382 — FWD SEAGRAVE HOLDINGS LP (USA)
SPECIFICATIONS
component_quantity22
supply_items_and_quantities2805-360-8332 GASKET 1 AND 2805-366-6218 GASKET 1 AND 2805-627-1922 GASKET 2 AND 2805-776-8077 GASKET 1 AND 2920-360-8381 GASKET 1 AND 2940-774-4747 GASKET 1
NSN5330-00-720-4773
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1DQ21A 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
•
NONSUPPLY ITEMS AND QUANTITIES: 66289 QB75 GASKET 3 AND 66289 QC58A GASKET 1 AND 66289 QD487A GASKET 2 AND 66289 QD487B GASKET 1 AND 66289 QD638A GASKET 1 AND 66289 QD660 GASKET 1 AND 66289 QD661A GASKET 1 AND 66289 QD663A GASKET 1 AND 66289 QD670 GASKET 1 AND 66289 QD715 GASKET 1 AND 66289 QD727 GASKET 1 AND 66289 QD728 GASKET 1
•
SUPPLY ITEMS AND QUANTITIES: 2805-360-8332 GASKET 1 AND 2805-366-6218 GASKET 1 AND 2805-627-1922 GASKET 2 AND 2805-776-8077 GASKET 1 AND 2920-360-8381 GASKET 1 AND 2940-774-4747 GASKET 1
•
COMPONENT QUANTITY: 22
TECHNICAL CHARACTERISTICS (FLIS)
NONSUPPLY ITEMS AND QUANTITIES66289 QB75 GASKET 3 AND 66289 QC58A GASKET 1 AND 66289 QD487A GASKET 2 AND 66289 QD487B GASKET 1 AND 66289 QD638A GASKET 1 AND 66289 QD660 GASKET 1 AND 66289 QD661A GASKET 1 AND 66289 QD663A GASKET 1 AND 66289 QD670 GASKET 1 AND 66289 QD715 GASKET 1 AND 66289 QD727 GASKET 1 AND 66289 QD728 GASKET 1
SUPPLY ITEMS AND QUANTITIES2805-360-8332 GASKET 1 AND 2805-366-6218 GASKET 1 AND 2805-627-1922 GASKET 2 AND 2805-776-8077 GASKET 1 AND 2920-360-8381 GASKET 1 AND 2940-774-4747 GASKET 1
COMPONENT QUANTITY22
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
90053Interchangeable
interchangeable cross-reference
interchangeable
361L72Interchangeable
interchangeable cross-reference
interchangeable
88 1-1/4Interchangeable
interchangeable cross-reference
interchangeable
DW1584Interchangeable
interchangeable cross-reference
interchangeable
KGB-12Interchangeable
interchangeable cross-reference
interchangeable
8800 PIECE 18Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1DQ21A?
1DQ21A is a GASKET SET.
What parts can replace 1DQ21A?
There are 11 known substitutes for 1DQ21A: 90053, 361L72, 88 1-1/4 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1DQ21A?
1DQ21A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-720-4773. 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