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4022091 — COVER,DUCT COUPLING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

4022091: COVER,DUCT COUPLING.

The COVER,DUCT COUPLING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4730-00-365-0772, 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
4022091
NSN: 4730-00-365-0772
NIINs: 003650772, 008256250
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
general_characteristics_item_descriptionFIBERGLASS FABRIC,MULTIPLE PLY,INNER SURFACE ALUMINIZED HEAT REFLECTIVE,OUTER PLY SILICONE RUBBER IMPREGNATED,BLACK COLOR,3.380 IN. LG,2.100 IN. OD,1.250 IN. ID,GLASS THD BINDING IN
NSN4730-00-365-0772
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4022091 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
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GENERAL CHARACTERISTICS ITEM DESCRIPTION: TITANIUM ALLOY,AMS 4928
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONTITANIUM ALLOY,AMS 4928
END ITEM IDENTIFICATIONENGINE ACFT TURBO FAN MODEL NO. F100PW100
SUBSTITUTES & CROSS-REFERENCES 2
4730PL0673338Reference document
Same NSN cross-reference
Reference document — Informative reference only
HF4022091Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4022091?
4022091 is a COVER,DUCT COUPLING.
What parts can replace 4022091?
There are 2 known substitutes for 4022091: 4730PL0673338, HF4022091. Substitute compatibility should be verified for your specific system.
What is the NSN for 4022091?
4022091 is cataloged in the U.S. Government catalog under NSN 4730-00-365-0772. 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.