PartsTable
Technical Data Sheet
PartsTable / COMPONENT / Q-21
Q-21 ✓ 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 O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, outside_diameter: 1.367 INCHES MINIMUM AND 1.407 INCHES MAXIMUM IN, component_quantity: 26, peripheral_diameter: 1.375 INCHES NOMINAL IN, center_hole_diameter: 1.103 INCHES MINIMUM AND 1.115 INCHES MAXIMUM IN, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-353-5907, 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
Q-21
NSN: 5330-00-353-5907
FSC: 5330
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
outside_diameter1.367 INCHES MINIMUM AND 1.407 INCHES MAXIMUM IN
component_quantity26
peripheral_diameter1.375 INCHES NOMINAL IN
center_hole_diameter1.103 INCHES MINIMUM AND 1.115 INCHES MAXIMUM IN
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
end_item_identificationNSN 2320-01-304-2277 PLS (PALLETIZED LOADING SYSTEM)
cross-sectional_shape_styleSPECIAL
nonsupply_items_and_quantities66289 QD487A GASKET 1 AND 66289 QD638 GASKET 1 AND 66289 QD667 GASKET 9
NSN5330-00-353-5907
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: Q-21 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
•
COMPONENT QUANTITY: 26
•
SUPPLY ITEMS AND QUANTITIES: 2805-360-8332 GASKET 1 AND 2805-366-6218 GASKET 1 AND 2805-366-6270 GASKET 3 AND 2805-366-9739 GASKET 1 AND 2805-695-8784 GASKET 2 AND 2805-776-8016 GASKET 1 AND 2805-776-8017 GASKET 1 AND 2805-776-8077 GASKET 1 AND 2805-776-8115 GASKET 1 AND 2910-641-3754 GASKET 1 AND 2910-776-7900 GASKET 1 AND 2920-360-8381 GASKET 1
•
NONSUPPLY ITEMS AND QUANTITIES: 66289 QD487A GASKET 1 AND 66289 QD638 GASKET 1 AND 66289 QD667 GASKET 9
TECHNICAL CHARACTERISTICS (FLIS)
COMPONENT QUANTITY26
SUPPLY ITEMS AND QUANTITIES2805-360-8332 GASKET 1 AND 2805-366-6218 GASKET 1 AND 2805-366-6270 GASKET 3 AND 2805-366-9739 GASKET 1 AND 2805-695-8784 GASKET 2 AND 2805-776-8016 GASKET 1 AND 2805-776-8017 GASKET 1 AND 2805-776-8077 GASKET 1 AND 2805-776-8115 GASKET 1 AND 2910-641-3754 GASKET 1 AND 2910-776-7900 GASKET 1 AND 2920-360-8381 GASKET 1
NONSUPPLY ITEMS AND QUANTITIES66289 QD487A GASKET 1 AND 66289 QD638 GASKET 1 AND 66289 QD667 GASKET 9
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
9863-004X7PC23Interchangeable
interchangeable cross-reference
interchangeable
585-125-1715229REVAPC15Interchangeable
interchangeable cross-reference
interchangeable
534-123-62PC214Interchangeable
interchangeable cross-reference
interchangeable
2-216 N304-75Interchangeable
interchangeable cross-reference
interchangeable
W 4072 485 ALInterchangeable
interchangeable cross-reference
interchangeable
1717-216Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is Q-21?
Q-21 is a O-RING.
What parts can replace Q-21?
There are 6 known substitutes for Q-21: 9863-004X7PC23, 585-125-1715229REVAPC15, 534-123-62PC214 and 3 more. Substitute compatibility should be verified for your specific system.
Is Q-21 still available?
Q-21 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026