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NRB — NOZZLE,PACKING FOAM

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

NRB: NOZZLE,PACKING FOAM.

The NOZZLE,PACKING FOAM is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4730-01-183-2582, 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
NRB
NSN: 4730-01-183-2582
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 54577 — INSTA-FOAM PRODUCTS INC (USA)
SPECIFICATIONS
Part NumberNRB
NSN4730-01-183-2582
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: NRB · 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
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GENERAL CHARACTERISTICS ITEM DESCRIPTION: AN ITEM OF VARIOUS CONFIGURATIONS AND OPENING SIZE(S) THROUGH WHICH PACKING FOAM IS DISPENSED; HOSE CONNECTION DIA. 2.000 INCHES NOMINAL; MEDIA, CHEMICAL FOAM (URETHANE); BACK CAP COLOR (BLACK); TIP TYPE, STRAIGHT CONE; ORIFICE SIZE, LARGE (2.000 IN.); APPLICATION, POUR; ITEM IS IN PROCESS OF GETTING AN AIN IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONAN ITEM OF VARIOUS CONFIGURATIONS AND OPENING SIZE(S) THROUGH WHICH PACKING FOAM IS DISPENSED; HOSE CONNECTION DIA. 2.000 INCHES NOMINAL; MEDIA, CHEMICAL FOAM (URETHANE); BACK CAP COLOR (BLACK); TIP TYPE, STRAIGHT CONE; ORIFICE SIZE, LARGE (2.000 IN.); APPLICATION, POUR; ITEM IS IN PROCESS OF GETTING AN AIN 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
30A0402Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
50E0402Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 NRB?
NRB is a NOZZLE,PACKING FOAM.
What parts can replace NRB?
There are 2 known substitutes for NRB: 30A0402, 50E0402. Substitute compatibility should be verified for your specific system.
What is the NSN for NRB?
NRB is cataloged in the U.S. Government catalog under NSN 4730-01-183-2582. 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.