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202912 — VALVE ASSEMBLY,ENVIRONMENTAL CON

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

202912: VALVE ASSEMBLY,ENVIRONMENTAL CON.

VALVE ASSEMBLY,ENVIRONMENTAL CON. Key specifications include end_item_identification: COMMON AIRCRAFT SYS COMPONENTS, general_characteristics_item_description: METAL. This part is cataloged in the U.S.

Government catalog under NSN 4810-00-269-7427, 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
202912
NSN: 4810-00-269-7427
NIINs: 002697427, 009099596, 010609940
FSC: 4810 — Valves, Powered
CAGE: 61208 — TWIN DISC, INCORPORATED DBA TWIN DISC MID-ATLANTIC (USA)
SPECIFICATIONS
end_item_identificationCOMMON AIRCRAFT SYS COMPONENTS
general_characteristics_item_descriptionMETAL
NSN4810-00-269-7427
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 202912 · 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
•
FLANGE SEAT TO DISK END HEIGHT: 0.312 INCHES NOMINAL IN
•
FLANGE DIAMETER: 0.875 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 0.750 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLAIN FLANGED
•
BODY INSIDE DIAMETER: 0.218 INCHES NOMINAL IN
•
UNDER FLANGE HEIGHT: 0.156 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.312 INCHES NOMINAL IN
FLANGE DIAMETER0.875 INCHES NOMINAL IN
OVERALL HEIGHT0.468 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER0.750 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN FLANGED
BODY INSIDE DIAMETER0.218 INCHES NOMINAL IN
SPECIAL FEATURESCONE ON TOP FLANGE
UNDER FLANGE HEIGHT0.156 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
SEATING SURFACE SHAPEFLAT
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 202912?
202912 is a VALVE ASSEMBLY,ENVIRONMENTAL CON.
What is the NSN for 202912?
202912 is cataloged in the U.S. Government catalog under NSN 4810-00-269-7427. 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.