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B12-3489-1SK — RESTRICTOR,FLUID FLOW

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

B12-3489-1SK: RESTRICTOR,FLUID FLOW.

The RESTRICTOR,FLUID FLOW is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, design_type: PLATE, orifice_diameter: 1.000 INCHES NOMINAL IN, outside_diameter: 5.060 INCHES NOMINAL IN, special_features: 0.125 IN. THK;W/ 6 0.562 IN.

DIA HOLES ON 3.947 IN. BCD IN, thread_provision: UNTHREADED LOCATION NOT OTHERWISE SPECIFIED. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-407-3596, 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
B12-3489-1SK
NSN: 4730-01-407-3596
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 42280 — GARDNER DENVER NASH LLC DBA GARDNER DENVER ENGINEERED PRODUCTS GROUP DIV GARDNER DENVER NASH (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
design_typePLATE
orifice_diameter1.000 INCHES NOMINAL IN
outside_diameter5.060 INCHES NOMINAL IN
special_features0.125 IN. THK;W/ 6 0.562 IN. DIA HOLES ON 3.947 IN. BCD IN
thread_provisionUNTHREADED LOCATION NOT OTHERWISE SPECIFIED
NSN4730-01-407-3596
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: B12-3489-1SK · 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
•
THREAD PROVISION: UNTHREADED LOCATION NOT OTHERWISE SPECIFIED
•
DESIGN TYPE: PLATE
•
OUTSIDE DIAMETER: 5.060 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING
•
ORIFICE DIAMETER: 1.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
THREAD PROVISIONUNTHREADED LOCATION NOT OTHERWISE SPECIFIED
DESIGN TYPEPLATE
OUTSIDE DIAMETER5.060 INCHES NOMINAL IN
SPECIAL FEATURES0.125 IN. THK;W/ 6 0.562 IN. DIA HOLES ON 3.947 IN. BCD IN
MATERIALSTEEL CORROSION RESISTING
ORIFICE DIAMETER1.000 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 1
15-2676-64Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B12-3489-1SK?
B12-3489-1SK is a RESTRICTOR,FLUID FLOW.
What parts can replace B12-3489-1SK?
There is 1 known substitute for B12-3489-1SK: 15-2676-64. Substitute compatibility should be verified for your specific system.
What is the NSN for B12-3489-1SK?
B12-3489-1SK is cataloged in the U.S. Government catalog under NSN 4730-01-407-3596. 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.