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589556-1C — RESTRICTOR,FLUID FLOW

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

589556-1C: RESTRICTOR,FLUID FLOW.

The RESTRICTOR,FLUID FLOW is a the manufacturer industrial component. Key specifications include length: 0.875 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN, material: ALUMINUM ALLOY 7075, design_type: TUBULAR, thread_class: 3A LOCATION NOT OTHERWISE SPECIFIED A, thread_length: 0.435 INCHES MINIMUM AND 0.442 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN, thread_series: UNEF LOCATION NOT OTHERWISE SPECIFIED. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-023-4328, 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
589556-1C
NSN: 4730-01-023-4328
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
length0.875 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN
materialALUMINUM ALLOY 7075
design_typeTUBULAR
thread_class3A LOCATION NOT OTHERWISE SPECIFIED A
thread_length0.435 INCHES MINIMUM AND 0.442 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
thread_seriesUNEF LOCATION NOT OTHERWISE SPECIFIED
orifice_diameter0.502 INCHES MINIMUM AND 0.504 INCHES MAXIMUM IN
outside_diameter1.000 INCHES NOMINAL IN
special_featuresSPLINE ORIFICE
thread_directionRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
thread_provisionTHREADED LOCATION NOT OTHERWISE SPECIFIED
surface_treatmentANODIZE
NSN4730-01-023-4328
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 589556-1C · 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: 0.875 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN
•
THREAD PROVISION: THREADED LOCATION NOT OTHERWISE SPECIFIED
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625 TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE
•
DESIGN TYPE: TUBULAR
•
THREAD SERIES: UNEF LOCATION NOT OTHERWISE SPECIFIED
•
THREAD LENGTH: 0.435 INCHES MINIMUM AND 0.442 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-282, TEMPER T6 FED SPEC SINGLE MATERIAL RESPONSE
•
OUTSIDE DIAMETER: 1.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
LENGTH0.875 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN
THREAD PROVISIONTHREADED LOCATION NOT OTHERWISE SPECIFIED
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE
DESIGN TYPETUBULAR
THREAD SERIESUNEF LOCATION NOT OTHERWISE SPECIFIED
THREAD LENGTH0.435 INCHES MINIMUM AND 0.442 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-282, TEMPER T6 FED SPEC SINGLE MATERIAL RESPONSE
OUTSIDE DIAMETER1.000 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
THREAD SIZE DESIGNATOR1.000-20 LOCATION NOT OTHERWISE SPECIFIED
SUBSTITUTES & CROSS-REFERENCES 2
589556-4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
589556-1Reference 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 589556-1C?
589556-1C is a RESTRICTOR,FLUID FLOW.
What parts can replace 589556-1C?
There are 2 known substitutes for 589556-1C: 589556-4, 589556-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 589556-1C?
589556-1C is cataloged in the U.S. Government catalog under NSN 4730-01-023-4328. 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.