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299997-101 L1 — FLANGE,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

299997-101 L1: FLANGE,PIPE.

The FLANGE,PIPE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY, thickness: 1.415 INCHES NOMINAL IN, neck_height: 0.758 INCHES NOMINAL IN, groove_depth: 0.108 INCHES NOMINAL IN, groove_width: 0.190 INCHES NOMINAL IN, thread_class: 2B. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-320-2905, 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
299997-101 L1
NSN: 4730-01-320-2905
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
materialNICKEL ALLOY
thickness1.415 INCHES NOMINAL IN
neck_height0.758 INCHES NOMINAL IN
groove_depth0.108 INCHES NOMINAL IN
groove_width0.190 INCHES NOMINAL IN
thread_class2B
flange_diameter8.625 INCHES NOMINAL IN
style_designatorROUND, ONE BOLT HOLE CIRCLE
bolt_hole_diameter0.685 INCHES NOMINAL IN
bolt_hole_quantity10
nominal_thread_size4.000 INCHES IN
bolt_circle_diameter7.125 INCHES NOMINAL IN
NSN4730-01-320-2905
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 299997-101 L1 · 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 3
299997-101Reference document
Same NSN cross-reference
Reference document — Secondary reference
299939-200 ITEM 3Reference document
Same NSN cross-reference
Reference document — Secondary reference
299939-200 ITEM 3 L1Same 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 299997-101 L1?
299997-101 L1 is a FLANGE,PIPE.
What parts can replace 299997-101 L1?
There are 3 known substitutes for 299997-101 L1: 299997-101, 299939-200 ITEM 3, 299939-200 ITEM 3 L1. Substitute compatibility should be verified for your specific system.
What is the NSN for 299997-101 L1?
299997-101 L1 is cataloged in the U.S. Government catalog under NSN 4730-01-320-2905. 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.