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212939 — REGULATOR,COMPRESSED GAS

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

212939: REGULATOR,COMPRESSED GAS.

The REGULATOR,COMPRESSED GAS is a the manufacturer industrial component. Key specifications include body_style: PLAIN, SOLID, bore_style: W/COUNTERBORE BOTH ENDS, tooth_form: STUB, pitch_diameter: 2.1250 INCHES NOMINAL IN, pressure_angle: 20.0000 DEGREES, teeth_quantity: 51. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-106-6418, 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
212939
NSN: 4820-00-106-6418
NIINs: 001066418, 016777415
FSC: 4820 — Valves, Nonpowered
CAGE: 10237 — CADILLAC GAGE TEXTRON INC. (USA)
SPECIFICATIONS
body_stylePLAIN, SOLID
bore_styleW/COUNTERBORE BOTH ENDS
tooth_formSTUB
pitch_diameter2.1250 INCHES NOMINAL IN
pressure_angle20.0000 DEGREES
teeth_quantity51
style_designatorHUBLESS
face_nominal_width0.099 INCHES IN
end_item_identification2230001749135,2230001749137,2230002972041
counterbore_nominal_diameter1.125 INCHES FIRST END IN
NSN4820-00-106-6418
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 212939 · 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
SUBSTITUTES & CROSS-REFERENCES 6
SR4G-580Reference document
Same NSN cross-reference
Reference document — Secondary reference
0780-3206Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
SR11-580Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
SR11-973Reference document
Same NSN cross-reference
Reference document — Secondary reference
0781-1428Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
1421765Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 212939?
212939 is a REGULATOR,COMPRESSED GAS.
What parts can replace 212939?
There are 6 known substitutes for 212939: SR4G-580, 0780-3206, SR11-580 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 212939?
212939 is cataloged in the U.S. Government catalog under NSN 4820-00-106-6418. 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.