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6390962-1 — RESTRICTOR,FLUID FLOW

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

6390962-1: RESTRICTOR,FLUID FLOW.

The RESTRICTOR,FLUID FLOW is a the manufacturer industrial component. Key specifications include length: 0.125 INCHES NOMINAL IN, material: STEEL CORROSION RESISTING, design_type: PLATE, orifice_diameter: 0.253 INCHES NOMINAL IN, outside_diameter: 1.148 INCHES NOMINAL IN, thread_provision: UNTHREADED LOCATION NOT OTHERWISE SPECIFIED. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-509-2065, 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
6390962-1
NSN: 4730-01-509-2065
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
length0.125 INCHES NOMINAL IN
materialSTEEL CORROSION RESISTING
design_typePLATE
orifice_diameter0.253 INCHES NOMINAL IN
outside_diameter1.148 INCHES NOMINAL IN
special_featuresWEAPON SYSTEM ESSENTIAL; MATERIAL IS STAINLESS STEEL, A240 TYPE 316 CONDITION A, FINISH 28; O'RING GROOVE IN FACE OF DISK
thread_provisionUNTHREADED LOCATION NOT OTHERWISE SPECIFIED
surface_treatmentPASSIVATE
end_item_identificationSHIP
criticality_code_justificationFEAT
NSN4730-01-509-2065
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6390962-1 · 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: 0.125 INCHES NOMINAL IN
•
THREAD PROVISION: UNTHREADED LOCATION NOT OTHERWISE SPECIFIED
•
DESIGN TYPE: PLATE
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
OUTSIDE DIAMETER: 1.148 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE
TECHNICAL CHARACTERISTICS
LENGTH0.125 INCHES NOMINAL IN
THREAD PROVISIONUNTHREADED LOCATION NOT OTHERWISE SPECIFIED
DESIGN TYPEPLATE
CRITICALITY CODE JUSTIFICATIONFEAT
OUTSIDE DIAMETER1.148 INCHES NOMINAL IN
SPECIAL FEATURESWEAPON SYSTEM ESSENTIAL; MATERIAL IS STAINLESS STEEL, A240 TYPE 316 CONDITION A, FINISH 28; O'RING GROOVE IN FACE OF DISK
SURFACE TREATMENTPASSIVATE
END ITEM IDENTIFICATIONSHIP
MATERIALSTEEL CORROSION RESISTING
ORIFICE DIAMETER0.253 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
6390962Reference 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 6390962-1?
6390962-1 is a RESTRICTOR,FLUID FLOW.
What parts can replace 6390962-1?
There is 1 known substitute for 6390962-1: 6390962. Substitute compatibility should be verified for your specific system.
What is the NSN for 6390962-1?
6390962-1 is cataloged in the U.S. Government catalog under NSN 4730-01-509-2065. 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.