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6-4644-20 — FLANGE,PIPE,SWIVEL RETAINING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

6-4644-20: FLANGE,PIPE,SWIVEL RETAINING.

The FLANGE,PIPE,SWIVEL RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, thickness: 0.560 INCHES NOMINAL IN, flange_width: 2.880 INCHES NOMINAL IN, socket_depth: 0.295 INCHES NOMINAL IN, flange_length: 3.120 INCHES NOMINAL IN, recess_diameter: 2.030 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-116-5230, 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
6-4644-20
NSN: 4730-00-116-5230
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 01276 — DANFOSS POWER SOLUTIONS II, LLC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
thickness0.560 INCHES NOMINAL IN
flange_width2.880 INCHES NOMINAL IN
socket_depth0.295 INCHES NOMINAL IN
flange_length3.120 INCHES NOMINAL IN
recess_diameter2.030 INCHES NOMINAL IN
style_designatorRECTANGULAR, WITH BOLT HOLES
surface_treatmentPASSIVATE
bolt_hole_diameter0.470 INCHES NOMINAL IN
bolt_hole_quantity4
flange_section_stylePLAIN FACE, SOCKET NECK
face_seating_surface_conditionMACHINED
NSN4730-00-116-5230
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6-4644-20 · 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
•
FACE SEATING SURFACE CONDITION: MACHINED
•
SOCKET DEPTH: 0.295 INCHES NOMINAL IN
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 1.250 INCHES NOMINAL IN
•
FLANGE SECTION STYLE: PLAIN FACE, SOCKET NECK
•
STYLE DESIGNATOR: RECTANGULAR, WITH BOLT HOLES
•
BOLT HOLE DIAMETER: 0.470 INCHES NOMINAL IN
•
FLANGE LENGTH: 3.120 INCHES NOMINAL IN
•
RECESS DIAMETER: 2.030 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FACE SEATING SURFACE CONDITIONMACHINED
SOCKET DEPTH0.295 INCHES NOMINAL IN
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED1.250 INCHES NOMINAL IN
FLANGE SECTION STYLEPLAIN FACE, SOCKET NECK
STYLE DESIGNATORRECTANGULAR, WITH BOLT HOLES
BOLT HOLE DIAMETER0.470 INCHES NOMINAL IN
FLANGE LENGTH3.120 INCHES NOMINAL IN
RECESS DIAMETER2.030 INCHES NOMINAL IN
BOLT HOLE QUANTITY4
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH2.310 INCHES NOMINAL IN
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

No substitute or cross-reference records for this part.

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 6-4644-20?
6-4644-20 is a FLANGE,PIPE,SWIVEL RETAINING.
What is the NSN for 6-4644-20?
6-4644-20 is cataloged in the U.S. Government catalog under NSN 4730-00-116-5230. 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.