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1644Y1 — CONNECTOR,MULTIPLE,FLUID PRESSUR

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

1644Y1: CONNECTOR,MULTIPLE,FLUID PRESSUR.

CONNECTOR,MULTIPLE,FLUID PRESSUR. Key specifications include material: ALUMINUM ALLOY, thickness: 0.600 INCHES NOMINAL IN, overall_width: 0.875 INCHES NOMINAL IN, overall_length: 1.562 INCHES NOMINAL IN, style_designator: 1 FLUID CONNECTION, surface_treatment: ANODIZE. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-467-8549, 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
1644Y1
NSN: 4730-00-467-8549
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: K0654 — SAFRAN LANDING SYSTEMS UK LTD DIV SAFRAN LANDING SYSTEMS UK (GBR)
SPECIFICATIONS
materialALUMINUM ALLOY
thickness0.600 INCHES NOMINAL IN
overall_width0.875 INCHES NOMINAL IN
overall_length1.562 INCHES NOMINAL IN
style_designator1 FLUID CONNECTION
surface_treatmentANODIZE
bolt_hole_diameter0.521 INCHES NOMINAL IN
bolt_hole_flats_serrationsNOT PROVIDED
NSN4730-00-467-8549
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1644Y1 · 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 FLATS SERRATIONS: NOT PROVIDED
•
STYLE DESIGNATOR: 1 FLUID CONNECTION
•
BOLT HOLE DIAMETER: 0.521 INCHES NOMINAL IN
•
SURFACE TREATMENT: ANODIZE
•
MATERIAL: ALUMINUM ALLOY
•
THICKNESS: 0.600 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
BOLT HOLE FLATS SERRATIONSNOT PROVIDED
STYLE DESIGNATOR1 FLUID CONNECTION
BOLT HOLE DIAMETER0.521 INCHES NOMINAL IN
OVERALL LENGTH1.562 INCHES NOMINAL IN
OVERALL WIDTH0.875 INCHES NOMINAL IN
SURFACE TREATMENTANODIZE
MATERIALALUMINUM ALLOY
THICKNESS0.600 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: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1644Y1?
1644Y1 is a CONNECTOR,MULTIPLE,FLUID PRESSUR.
What is the NSN for 1644Y1?
1644Y1 is cataloged in the U.S. Government catalog under NSN 4730-00-467-8549. 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.