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2633-561-02PC42 — RESTRICTOR,FLUID FLOW

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

2633-561-02PC42: RESTRICTOR,FLUID FLOW.

The RESTRICTOR,FLUID FLOW is a the manufacturer industrial component. Key specifications include length: 4.755 INCHES NOMINAL IN, material: STEEL, design_type: PLATE, orifice_diameter: 1.500 INCHES NOMINAL IN, outside_diameter: 3.250 INCHES NOMINAL IN, special_features: MATL IAW MIL-S-22698,GR A,CL U; MAX WORKING PRESS AT 150 PSI @500 DEG F DEGF. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-581-4231, 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
2633-561-02PC42
NSN: 4730-01-581-4231
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
length4.755 INCHES NOMINAL IN
materialSTEEL
design_typePLATE
orifice_diameter1.500 INCHES NOMINAL IN
outside_diameter3.250 INCHES NOMINAL IN
special_featuresMATL IAW MIL-S-22698,GR A,CL U; MAX WORKING PRESS AT 150 PSI @500 DEG F DEGF
thread_provisionUNTHREADED SINGLE PROVISION
NSN4730-01-581-4231
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 2633-561-02PC42 · 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: 4.755 INCHES NOMINAL IN
•
THREAD PROVISION: UNTHREADED SINGLE PROVISION
•
DESIGN TYPE: PLATE
•
OUTSIDE DIAMETER: 3.250 INCHES NOMINAL IN
•
MATERIAL: STEEL
•
ORIFICE DIAMETER: 1.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
LENGTH4.755 INCHES NOMINAL IN
THREAD PROVISIONUNTHREADED SINGLE PROVISION
DESIGN TYPEPLATE
OUTSIDE DIAMETER3.250 INCHES NOMINAL IN
SPECIAL FEATURESMATL IAW MIL-S-22698,GR A,CL U; MAX WORKING PRESS AT 150 PSI @500 DEG F DEGF
MATERIALSTEEL
ORIFICE DIAMETER1.500 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 2633-561-02PC42?
2633-561-02PC42 is a RESTRICTOR,FLUID FLOW.
What is the NSN for 2633-561-02PC42?
2633-561-02PC42 is cataloged in the U.S. Government catalog under NSN 4730-01-581-4231. 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.