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72939-1 — GUIDE,ENGINE POPPET VALVE TAPPET

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

72939-1: GUIDE,ENGINE POPPET VALVE TAPPET.

GUIDE,ENGINE POPPET VALVE TAPPET. Key specifications include end_item_identification: CONSOLIDATED CONTROLS CORP PNEUMATIC ACTUATOR, general_characteristics_item_description: ALUMINUM ALLOY AND CRES. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-045-6107, 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
72939-1
NSN: 4820-01-045-6107
NIINs: 010456107, 014695613
FSC: 4820 — Valves, Nonpowered
CAGE: 09790 — EATON AEROSPACE LLC DBA STERER ENGINEERING DIV VALVE & ACTUATOR (USA)
SPECIFICATIONS
end_item_identificationCONSOLIDATED CONTROLS CORP PNEUMATIC ACTUATOR
general_characteristics_item_descriptionALUMINUM ALLOY AND CRES
NSN4820-01-045-6107
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 72939-1 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: ALUMINUM ALLOY AND CRES
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONALUMINUM ALLOY AND CRES
END ITEM IDENTIFICATIONCONSOLIDATED CONTROLS CORP PNEUMATIC ACTUATOR
SUBSTITUTES & CROSS-REFERENCES 1
74500PC40Reference 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 72939-1?
72939-1 is a GUIDE,ENGINE POPPET VALVE TAPPET.
What parts can replace 72939-1?
There is 1 known substitute for 72939-1: 74500PC40. Substitute compatibility should be verified for your specific system.
What is the NSN for 72939-1?
72939-1 is cataloged in the U.S. Government catalog under NSN 4820-01-045-6107. 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.