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Technical Data Sheet
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299939 — ADAPTER,STRAIGHT,FLANGE TO FLANG

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

299939: ADAPTER,STRAIGHT,FLANGE TO FLANG.

ADAPTER,STRAIGHT,FLANGE TO FLANG. This part is cataloged in the U.S. Government catalog under NSN 4730-01-184-0518, 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
299939
NSN: 4730-01-184-0518
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 27826 — EDWARDS AEROSPACE INC (USA)
SPECIFICATIONS
Part Number299939
NSN4730-01-184-0518
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 299939 · 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
SUBSTITUTES & CROSS-REFERENCES 2
19-80-1446Reference document
Same NSN cross-reference
Reference document — Secondary reference
299939-200Reference 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 299939?
299939 is a ADAPTER,STRAIGHT,FLANGE TO FLANG.
What parts can replace 299939?
There are 2 known substitutes for 299939: 19-80-1446, 299939-200. Substitute compatibility should be verified for your specific system.
What is the NSN for 299939?
299939 is cataloged in the U.S. Government catalog under NSN 4730-01-184-0518. 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.