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1552AS526 — RESTRICTOR,FLUID FLOW

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

1552AS526: RESTRICTOR,FLUID FLOW.

The RESTRICTOR,FLUID FLOW is a the manufacturer industrial component. Key specifications include length: 0.750 INCHES NOMINAL IN, material: COPPER ALLOY, design_type: TUBULAR, orifice_diameter: 0.188 INCHES NOMINAL IN, outside_diameter: 0.625 INCHES NOMINAL IN, thread_provision: UNTHREADED LOCATION NOT OTHERWISE SPECIFIED. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-301-0415, 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
1552AS526
NSN: 4730-01-301-0415
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
length0.750 INCHES NOMINAL IN
materialCOPPER ALLOY
design_typeTUBULAR
orifice_diameter0.188 INCHES NOMINAL IN
outside_diameter0.625 INCHES NOMINAL IN
thread_provisionUNTHREADED LOCATION NOT OTHERWISE SPECIFIED
end_item_identification3655-01-281-7748 TANK,STORAGE,LIQUID ARGON-NITROGEN-OXYGEN
hose/tube_size_for_which_designed0.625 IN. OD TUBE IN
NSN4730-01-301-0415
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1552AS526 · 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
•
LENGTH: 0.750 INCHES NOMINAL IN
•
THREAD PROVISION: UNTHREADED LOCATION NOT OTHERWISE SPECIFIED
•
DESIGN TYPE: TUBULAR
•
HOSE/TUBE SIZE FOR WHICH DESIGNED: 0.625 IN. OD TUBE IN
•
OUTSIDE DIAMETER: 0.625 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY
•
ORIFICE DIAMETER: 0.188 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
LENGTH0.750 INCHES NOMINAL IN
THREAD PROVISIONUNTHREADED LOCATION NOT OTHERWISE SPECIFIED
DESIGN TYPETUBULAR
HOSE/TUBE SIZE FOR WHICH DESIGNED0.625 IN. OD TUBE IN
OUTSIDE DIAMETER0.625 INCHES NOMINAL IN
END ITEM IDENTIFICATION3655-01-281-7748 TANK,STORAGE,LIQUID ARGON-NITROGEN-OXYGEN
MATERIALCOPPER ALLOY
ORIFICE DIAMETER0.188 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 1552AS526?
1552AS526 is a RESTRICTOR,FLUID FLOW.
What is the NSN for 1552AS526?
1552AS526 is cataloged in the U.S. Government catalog under NSN 4730-01-301-0415. 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.