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1B48158 — RESTRICTOR,FLUID FLOW

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

1B48158: RESTRICTOR,FLUID FLOW.

The RESTRICTOR,FLUID FLOW is a the manufacturer industrial component. Key specifications include length: 0.800 INCHES NOMINAL IN, material: STEEL CORROSION RESISTING, design_type: TUBULAR, orifice_diameter: 0.024 INCHES NOMINAL IN, outside_diameter: 0.1867 INCHES MINIMUM AND 0.1874 INCHES MAXIMUM IN, thread_provision: UNTHREADED LOCATION NOT OTHERWISE SPECIFIED. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-129-5236, 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
1B48158
NSN: 4730-01-129-5236
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 18355 — THE BOEING COMPANY (USA)
SPECIFICATIONS
length0.800 INCHES NOMINAL IN
materialSTEEL CORROSION RESISTING
design_typeTUBULAR
orifice_diameter0.024 INCHES NOMINAL IN
outside_diameter0.1867 INCHES MINIMUM AND 0.1874 INCHES MAXIMUM IN
thread_provisionUNTHREADED LOCATION NOT OTHERWISE SPECIFIED
NSN4730-01-129-5236
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1B48158 · 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: 0.800 INCHES NOMINAL IN
•
THREAD PROVISION: UNTHREADED LOCATION NOT OTHERWISE SPECIFIED
•
DESIGN TYPE: TUBULAR
•
OUTSIDE DIAMETER: 0.1867 INCHES MINIMUM AND 0.1874 INCHES MAXIMUM IN
•
MATERIAL: STEEL CORROSION RESISTING
•
ORIFICE DIAMETER: 0.024 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
LENGTH0.800 INCHES NOMINAL IN
THREAD PROVISIONUNTHREADED LOCATION NOT OTHERWISE SPECIFIED
DESIGN TYPETUBULAR
OUTSIDE DIAMETER0.1867 INCHES MINIMUM AND 0.1874 INCHES MAXIMUM IN
MATERIALSTEEL CORROSION RESISTING
ORIFICE DIAMETER0.024 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 2
10108666Reference document
Same NSN cross-reference
Reference document — Informative reference only
1B48158-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 1B48158?
1B48158 is a RESTRICTOR,FLUID FLOW.
What parts can replace 1B48158?
There are 2 known substitutes for 1B48158: 10108666, 1B48158-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 1B48158?
1B48158 is cataloged in the U.S. Government catalog under NSN 4730-01-129-5236. 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.