PartsTable
Technical Data Sheet

B3416 2 1/2IN — RESTRICTOR,FLUID FLOW

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

B3416 2 1/2IN: RESTRICTOR,FLUID FLOW.

The RESTRICTOR,FLUID FLOW is a the manufacturer industrial component. Key specifications include length: 4.000 INCHES NOMINAL IN, material: STEEL CORROSION RESISTING, design_type: PLATE, thread_class: 2B LOCATION NOT OTHERWISE SPECIFIED, thread_series: NPTF LOCATION NOT OTHERWISE SPECIFIED, orifice_diameter: 1.625 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-237-7106, 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
B3416 2 1/2IN
NSN: 4730-01-237-7106
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
length4.000 INCHES NOMINAL IN
materialSTEEL CORROSION RESISTING
design_typePLATE
thread_class2B LOCATION NOT OTHERWISE SPECIFIED
thread_seriesNPTF LOCATION NOT OTHERWISE SPECIFIED
orifice_diameter1.625 INCHES NOMINAL IN
outside_diameter2.500 INCHES NOMINAL IN
thread_directionRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
thread_provisionTHREADED LOCATION NOT OTHERWISE SPECIFIED
thread_size_designator1/4-18 LOCATION NOT OTHERWISE SPECIFIED
NSN4730-01-237-7106
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: B3416 2 1/2IN · 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: 4.000 INCHES NOMINAL IN
•
THREAD PROVISION: THREADED LOCATION NOT OTHERWISE SPECIFIED
•
DESIGN TYPE: PLATE
•
THREAD SERIES: NPTF LOCATION NOT OTHERWISE SPECIFIED
•
OUTSIDE DIAMETER: 2.500 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
•
THREAD SIZE DESIGNATOR: 1/4-18 LOCATION NOT OTHERWISE SPECIFIED
•
THREAD CLASS: 2B LOCATION NOT OTHERWISE SPECIFIED
TECHNICAL CHARACTERISTICS
LENGTH4.000 INCHES NOMINAL IN
THREAD PROVISIONTHREADED LOCATION NOT OTHERWISE SPECIFIED
DESIGN TYPEPLATE
THREAD SERIESNPTF LOCATION NOT OTHERWISE SPECIFIED
OUTSIDE DIAMETER2.500 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
THREAD SIZE DESIGNATOR1/4-18 LOCATION NOT OTHERWISE SPECIFIED
THREAD CLASS2B LOCATION NOT OTHERWISE SPECIFIED
MATERIALSTEEL CORROSION RESISTING
ORIFICE DIAMETER1.625 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
B3416Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
439 DWG B3416 2Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B3416 2 1/2IN?
B3416 2 1/2IN is a RESTRICTOR,FLUID FLOW.
What parts can replace B3416 2 1/2IN?
There are 2 known substitutes for B3416 2 1/2IN: B3416, 439 DWG B3416 2. Substitute compatibility should be verified for your specific system.
What is the NSN for B3416 2 1/2IN?
B3416 2 1/2IN is cataloged in the U.S. Government catalog under NSN 4730-01-237-7106. 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.