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2121686 — SEAL,VALVE STEM AND GUIDE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

2121686: SEAL,VALVE STEM AND GUIDE.

The SEAL,VALVE STEM AND GUIDE is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5330-00-439-6230, 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
2121686
NSN: 5330-00-439-6230
FSC: 5330 — Packing and Gasket Materials
CAGE: 12204 — CHRYSLER REALTY COMPANY LLC DBA DAIMLER CHRYSLER (USA)
SPECIFICATIONS
general_characteristics_item_descriptionSYNTHETIC RUBBER; 0.310 IN. ID VALVE STEM HOLE ON TOP END; 0.750 IN. DIA VALVE GUIDE END; 0.875 IN. OD; 0.795 IN. O/A HEIGHT IN
NSN5330-00-439-6230
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2121686 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
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GENERAL CHARACTERISTICS ITEM DESCRIPTION: SYNTHETIC RUBBER; 0.310 IN. ID VALVE STEM HOLE ON TOP END; 0.750 IN. DIA VALVE GUIDE END; 0.875 IN. OD; 0.795 IN. O/A HEIGHT IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSYNTHETIC RUBBER; 0.310 IN. ID VALVE STEM HOLE ON TOP END; 0.750 IN. DIA VALVE GUIDE END; 0.875 IN. OD; 0.795 IN. O/A HEIGHT IN
SUBSTITUTES & CROSS-REFERENCES 1
VP21Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 2121686?
2121686 is a SEAL,VALVE STEM AND GUIDE.
What parts can replace 2121686?
There is 1 known substitute for 2121686: VP21. Substitute compatibility should be verified for your specific system.
What is the NSN for 2121686?
2121686 is cataloged in the U.S. Government catalog under NSN 5330-00-439-6230. This indicates validated use in U.S. government and defense supply chains.
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