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702578CL12 — RESTRICTOR,FLUID FLOW

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

702578CL12: RESTRICTOR,FLUID FLOW.

The RESTRICTOR,FLUID FLOW is a the manufacturer industrial component. Key specifications include length: 0.640 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN, material: STEEL CORROSION RESISTING, design_type: TUBULAR, thread_class: 3A LOCATION NOT OTHERWISE SPECIFIED A, thread_length: 0.228 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, thread_series: UNS LOCATION NOT OTHERWISE SPECIFIED. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-063-9398, 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
702578CL12
NSN: 4730-01-063-9398
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
length0.640 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN
materialSTEEL CORROSION RESISTING
design_typeTUBULAR
thread_class3A LOCATION NOT OTHERWISE SPECIFIED A
thread_length0.228 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
thread_seriesUNS LOCATION NOT OTHERWISE SPECIFIED
orifice_diameter0.112 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN
outside_diameter0.490 INCHES MINIMUM AND 0.496 INCHES MAXIMUM IN
thread_directionRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
thread_provisionTHREADED LOCATION NOT OTHERWISE SPECIFIED
thread_pitch_diameters+0.4079 TO 0.4105 INCHES LOCATION NOT OTHERWISE SPECIFIED IN
thread_size_designator0.4375-24 LOCATION NOT OTHERWISE SPECIFIED
NSN4730-01-063-9398
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 702578CL12 · 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: 0.640 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN
•
THREAD PROVISION: THREADED LOCATION NOT OTHERWISE SPECIFIED
•
DESIGN TYPE: TUBULAR
•
THREAD SERIES: UNS LOCATION NOT OTHERWISE SPECIFIED
•
THREAD LENGTH: 0.228 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
THREAD PITCH DIAMETERS: +0.4079 TO 0.4105 INCHES LOCATION NOT OTHERWISE SPECIFIED IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5640 ASSN STD SINGLE MATERIAL RESPONSE
•
OUTSIDE DIAMETER: 0.490 INCHES MINIMUM AND 0.496 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
LENGTH0.640 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN
THREAD PROVISIONTHREADED LOCATION NOT OTHERWISE SPECIFIED
DESIGN TYPETUBULAR
THREAD SERIESUNS LOCATION NOT OTHERWISE SPECIFIED
THREAD LENGTH0.228 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
THREAD PITCH DIAMETERS+0.4079 TO 0.4105 INCHES LOCATION NOT OTHERWISE SPECIFIED IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5640 ASSN STD SINGLE MATERIAL RESPONSE
OUTSIDE DIAMETER0.490 INCHES MINIMUM AND 0.496 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
THREAD SIZE DESIGNATOR0.4375-24 LOCATION NOT OTHERWISE SPECIFIED
SUBSTITUTES & CROSS-REFERENCES 1
702578Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 702578CL12?
702578CL12 is a RESTRICTOR,FLUID FLOW.
What parts can replace 702578CL12?
There is 1 known substitute for 702578CL12: 702578. Substitute compatibility should be verified for your specific system.
What is the NSN for 702578CL12?
702578CL12 is cataloged in the U.S. Government catalog under NSN 4730-01-063-9398. 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.