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Technical Data Sheet
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937E0021 — PLUG,PIPE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

937E0021: PLUG,PIPE.

The PLUG,PIPE is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5330-01-194-4594, 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
937E0021
NSN: 5330-01-194-4594
NIINs: 011944594, 012763848
FSC: 5330 — Packing and Gasket Materials
CAGE: 63857 — CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS (USA)
SPECIFICATIONS
reference_number_differentiating_characteristicsITEM THAT SUPPORTS A LEVEL 1 OR SUBSAFE CRITICAL SYSTEM THAT HAS UNDERGONE QUALITY ASSURANCE DURING THE ACQUISITION PROCESS
NSN5330-01-194-4594
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 937E0021 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
SUBSTITUTES & CROSS-REFERENCES 1
PL999D0659 PIECE 49Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 937E0021?
937E0021 is a PLUG,PIPE.
What parts can replace 937E0021?
There is 1 known substitute for 937E0021: PL999D0659 PIECE 49. Substitute compatibility should be verified for your specific system.
What is the NSN for 937E0021?
937E0021 is cataloged in the U.S. Government catalog under NSN 5330-01-194-4594. This indicates validated use in U.S. government and defense supply chains.
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