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21823-1471 — SEAL,PLAIN

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

21823-1471: SEAL,PLAIN.

The SEAL,PLAIN is a the manufacturer industrial component. Key specifications include seal_width: 0.375 INCHES NOMINAL IN, housing_bore_diameter: 2.997 INCHES NOMINAL IN, accommodated_shaft_diameter: 2.250 INCHES NOMINAL IN, criticality_code_justification: FEAT. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-326-3479, 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
21823-1471
NSN: 5330-01-326-3479
NIINs: 013263479, 017141416
FSC: 5330 — Packing and Gasket Materials
CAGE: 73680 — GARLOCK SEALING TECHNOLOGIES LLC DBA GARLOCK SEALING TECHNOLOGIES LLC (USA)
SPECIFICATIONS
seal_width0.375 INCHES NOMINAL IN
special_featuresMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
housing_bore_diameter2.997 INCHES NOMINAL IN
accommodated_shaft_diameter2.250 INCHES NOMINAL IN
criticality_code_justificationFEAT
NSN5330-01-326-3479
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 21823-1471 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
•
SEAL WIDTH: 0.375 INCHES NOMINAL IN
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
HOUSING BORE DIAMETER: 2.997 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT DIAMETER: 2.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.375 INCHES NOMINAL IN
CRITICALITY CODE JUSTIFICATIONFEAT
HOUSING BORE DIAMETER2.997 INCHES NOMINAL IN
SPECIAL FEATURESMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
ACCOMMODATED SHAFT DIAMETER2.250 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
820-5787325ITEM29Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 21823-1471?
21823-1471 is a SEAL,PLAIN.
What parts can replace 21823-1471?
There is 1 known substitute for 21823-1471: 820-5787325ITEM29. Substitute compatibility should be verified for your specific system.
What is the NSN for 21823-1471?
21823-1471 is cataloged in the U.S. Government catalog under NSN 5330-01-326-3479. 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.