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1549650-31 — SEAL,PLAIN ENCASED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

1549650-31: SEAL,PLAIN ENCASED.

The SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OR STEEL CASE, case_style: RECESSED, seal_width: 0.284 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN, special_features: CARBON STEEL /ZINC PLATED/, surface_treatment: ZINC AND CHROMATE CASE, housing_bore_diameter: 3.253 INCHES MINIMUM AND 3.257 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-122-2464, 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
1549650-31
NSN: 5330-01-122-2464
FSC: 5330 — Packing and Gasket Materials
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OR STEEL CASE
case_styleRECESSED
seal_width0.284 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN
special_featuresCARBON STEEL /ZINC PLATED/
surface_treatmentZINC AND CHROMATE CASE
housing_bore_diameter3.253 INCHES MINIMUM AND 3.257 INCHES MAXIMUM IN
sealing_element_styleANGULAR-OPPOSED
accommodated_shaft_diameter2.187 INCHES NOMINAL IN
NSN5330-01-122-2464
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1549650-31 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: 0.284 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN
•
SEALING ELEMENT STYLE: ANGULAR-OPPOSED
•
HOUSING BORE DIAMETER: 3.253 INCHES MINIMUM AND 3.257 INCHES MAXIMUM IN
•
CASE STYLE: RECESSED
•
ACCOMMODATED SHAFT DIAMETER: 2.187 INCHES NOMINAL IN
•
SURFACE TREATMENT: ZINC AND CHROMATE CASE
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT A
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.284 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN
SEALING ELEMENT STYLEANGULAR-OPPOSED
HOUSING BORE DIAMETER3.253 INCHES MINIMUM AND 3.257 INCHES MAXIMUM IN
CASE STYLERECESSED
SPECIAL FEATURESCARBON STEEL /ZINC PLATED/
ACCOMMODATED SHAFT DIAMETER2.187 INCHES NOMINAL IN
SURFACE TREATMENTZINC AND CHROMATE CASE
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT A
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT B
MATERIALSTEEL CORROSION RESISTING OR STEEL CASE
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES 2
1549650 PIECE 31Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
218-323-6LReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1549650-31?
1549650-31 is a SEAL,PLAIN ENCASED.
What parts can replace 1549650-31?
There are 2 known substitutes for 1549650-31: 1549650 PIECE 31, 218-323-6L. Substitute compatibility should be verified for your specific system.
What is the NSN for 1549650-31?
1549650-31 is cataloged in the U.S. Government catalog under NSN 5330-01-122-2464. 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.