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5978906 — RESTRICTOR UNIT,FLUID FLOW

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

5978906: RESTRICTOR UNIT,FLUID FLOW.

The RESTRICTOR UNIT,FLUID FLOW is a the manufacturer industrial component. Key specifications include diameter: 0.1885 INCHES NOMINAL IN, material: COPPER ALLOY BODY, design_type: STRAIGHT, overall_length: 0.162 INCHES NOMINAL IN, pressure_rating: 2.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS, orifice_diameter: 0.140 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-244-3689, 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
5978906
NSN: 4730-01-244-3689
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
diameter0.1885 INCHES NOMINAL IN
materialCOPPER ALLOY BODY
design_typeSTRAIGHT
overall_length0.162 INCHES NOMINAL IN
pressure_rating2.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
orifice_diameter0.140 INCHES NOMINAL IN
special_features0.0180 IN. ID ORIFICE OPPOSITE FROM SCREEN END IN
end_connection_similarityIDENTICAL
strainer_type_and_quantity1 SCREEN
NSN4730-01-244-3689
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 5978906 · 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
•
PRESSURE RATING: 2.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
•
STRAINER TYPE AND QUANTITY: 1 SCREEN
•
DESIGN TYPE: STRAIGHT
•
DIAMETER: 0.1885 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY BODY
TECHNICAL CHARACTERISTICS
PRESSURE RATING2.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
STRAINER TYPE AND QUANTITY1 SCREEN
DESIGN TYPESTRAIGHT
DIAMETER0.1885 INCHES NOMINAL IN
OVERALL LENGTH0.162 INCHES NOMINAL IN
SPECIAL FEATURES0.0180 IN. ID ORIFICE OPPOSITE FROM SCREEN END IN
MATERIALCOPPER ALLOY BODY
MATERIALSTEEL CORROSION RESISTING SCREENING
ORIFICE DIAMETER0.140 INCHES NOMINAL IN
END CONNECTION SIMILARITYIDENTICAL
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5978906?
5978906 is a RESTRICTOR UNIT,FLUID FLOW.
What is the NSN for 5978906?
5978906 is cataloged in the U.S. Government catalog under NSN 4730-01-244-3689. 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.