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211078354 — FLANGE,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

211078354: FLANGE,PIPE.

The FLANGE,PIPE is a the manufacturer industrial component. Key specifications include material: STEEL, thickness: 0.500 INCHES NOMINAL IN, neck_height: 2.000 INCHES NOMINAL IN, flange_diameter: 6.630 INCHES NOMINAL IN, style_designator: ROUND, ONE BOLT HOLE CIRCLE, bolt_hole_diameter: 0.625 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-434-5499, 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
211078354
NSN: 4730-01-434-5499
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL
thickness0.500 INCHES NOMINAL IN
neck_height2.000 INCHES NOMINAL IN
flange_diameter6.630 INCHES NOMINAL IN
style_designatorROUND, ONE BOLT HOLE CIRCLE
bolt_hole_diameter0.625 INCHES NOMINAL IN
bolt_hole_quantity6
bolt_circle_diameter3.875 INCHES NOMINAL IN
flange_section_stylePLAIN FACE, WELDING NECK
end_item_identificationSEAWOLF CLASS SSN
face_seating_surface_conditionMACHINED
NSN4730-01-434-5499
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 211078354 · 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
•
FLANGE DIAMETER: 6.630 INCHES NOMINAL IN
•
FACE SEATING SURFACE CONDITION: MACHINED
•
FLANGE SECTION STYLE: PLAIN FACE, WELDING NECK
•
STYLE DESIGNATOR: ROUND, ONE BOLT HOLE CIRCLE
•
BOLT HOLE DIAMETER: 0.625 INCHES NOMINAL IN
•
NECK HEIGHT: 2.000 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 6
•
BOLT CIRCLE DIAMETER: 3.875 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FLANGE DIAMETER6.630 INCHES NOMINAL IN
FACE SEATING SURFACE CONDITIONMACHINED
FLANGE SECTION STYLEPLAIN FACE, WELDING NECK
STYLE DESIGNATORROUND, ONE BOLT HOLE CIRCLE
BOLT HOLE DIAMETER0.625 INCHES NOMINAL IN
NECK HEIGHT2.000 INCHES NOMINAL IN
BOLT HOLE QUANTITY6
BOLT CIRCLE DIAMETER3.875 INCHES NOMINAL IN
END ITEM IDENTIFICATIONSEAWOLF CLASS SSN
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES 2
801-6405354 FIND 106Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
6405354Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 211078354?
211078354 is a FLANGE,PIPE.
What parts can replace 211078354?
There are 2 known substitutes for 211078354: 801-6405354 FIND 106, 6405354. Substitute compatibility should be verified for your specific system.
What is the NSN for 211078354?
211078354 is cataloged in the U.S. Government catalog under NSN 4730-01-434-5499. 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.