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5KK665 — FLANGE,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

5KK665: FLANGE,PIPE.

The FLANGE,PIPE is a the manufacturer industrial component. Key specifications include neck_height: 0.940 INCHES NOMINAL IN, surface_treatment: CHROMATE ZINC, bolt_hole_diameter: 0.500 INCHES NOMINAL IN, end_item_identification: 2350-01-390-4683, outside_edge_to_bolt_hole_center_distance_along_length: 0.550 INCHES NOMINAL IN, center_to_center_distance_between_bolt_holes_along_length: 2.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-422-1928, 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
5KK665
NSN: 4730-01-422-1928
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
neck_height0.940 INCHES NOMINAL IN
surface_treatmentCHROMATE ZINC
bolt_hole_diameter0.500 INCHES NOMINAL IN
bolt_hole_quantity2
end_item_identification2350-01-390-4683
outside_edge_to_bolt_hole_center_distance_along_length0.550 INCHES NOMINAL IN
center_to_center_distance_between_bolt_holes_along_length2.250 INCHES NOMINAL IN
NSN4730-01-422-1928
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 5KK665 · 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
•
BOLT HOLE DIAMETER: 0.500 INCHES NOMINAL IN
•
NECK HEIGHT: 0.940 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 2
•
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH: 2.250 INCHES NOMINAL IN
•
SURFACE TREATMENT: CHROMATE ZINC
•
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG LENGTH: 0.550 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
BOLT HOLE DIAMETER0.500 INCHES NOMINAL IN
NECK HEIGHT0.940 INCHES NOMINAL IN
BOLT HOLE QUANTITY2
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH2.250 INCHES NOMINAL IN
SURFACE TREATMENTCHROMATE ZINC
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG LENGTH0.550 INCHES NOMINAL IN
END ITEM IDENTIFICATION2350-01-390-4683
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES 1
FC3425-16-449Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 5KK665?
5KK665 is a FLANGE,PIPE.
What parts can replace 5KK665?
There is 1 known substitute for 5KK665: FC3425-16-449. Substitute compatibility should be verified for your specific system.
What is the NSN for 5KK665?
5KK665 is cataloged in the U.S. Government catalog under NSN 4730-01-422-1928. 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.