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21090047 — DUCT ASSEMBLY,AIR CONDITIONING-H

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

21090047: DUCT ASSEMBLY,AIR CONDITIONING-H.

DUCT ASSEMBLY,AIR CONDITIONING-H. Key specifications include special_features: NORMALLY OPEN, end_item_identification: PACER SPECIAL. This part is cataloged in the U.S.

Government catalog under NSN 4810-01-370-9761, 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
21090047
NSN: 4810-01-370-9761
NIINs: 013709761, 015995632
FSC: 4810 — Valves, Powered
CAGE: 91816 — CIRCOR AEROSPACE, INC. DBA CIRCOR AEROSPACE INC (USA)
SPECIFICATIONS
special_featuresNORMALLY OPEN
end_item_identificationPACER SPECIAL
NSN4810-01-370-9761
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 21090047 · 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
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESNORMALLY OPEN
END ITEM IDENTIFICATIONPACER SPECIAL
SUBSTITUTES & CROSS-REFERENCES 1
DAA3221P002-111Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 21090047?
21090047 is a DUCT ASSEMBLY,AIR CONDITIONING-H.
What parts can replace 21090047?
There is 1 known substitute for 21090047: DAA3221P002-111. Substitute compatibility should be verified for your specific system.
What is the NSN for 21090047?
21090047 is cataloged in the U.S. Government catalog under NSN 4810-01-370-9761. 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.