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Technical Data Sheet
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319 6691 — ELBOW,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

319 6691: ELBOW,TUBE.

The ELBOW,TUBE is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4730-01-155-6799, 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
319 6691
NSN: 4730-01-155-6799
NIINs: 011556799, 012956127
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 34914 — HIAB USA INC (USA)
SPECIFICATIONS
Part Number319 6691
NSN4730-01-155-6799
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 319 6691 · 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
2AW742Reference document
Same NSN cross-reference
Reference document — Secondary reference
18TN263Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 319 6691?
319 6691 is a ELBOW,TUBE.
What parts can replace 319 6691?
There are 2 known substitutes for 319 6691: 2AW742, 18TN263. Substitute compatibility should be verified for your specific system.
What is the NSN for 319 6691?
319 6691 is cataloged in the U.S. Government catalog under NSN 4730-01-155-6799. 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.