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PartsTable / COMPONENT / B605-4
B605-4 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include material: COPPER ALLOY, style_designator: SERRATED, casehardening_indicator: NOT CASEHARDENED, flange_outside_diameter: 0.368 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN, sleeve_outside_diameter: 0.250 INCHES NOMINAL IN, tube_inside_diameter_for_which_designed: 0.250 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-871-8376, 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
B605-4
NSN: 4730-00-871-8376
FSC: 4730
CAGE: 3T9T9 — SWAGELOK CO (USA)
SPECIFICATIONS
materialCOPPER ALLOY
style_designatorSERRATED
casehardening_indicatorNOT CASEHARDENED
flange_outside_diameter0.368 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN
sleeve_outside_diameter0.250 INCHES NOMINAL IN
tube_inside_diameter_for_which_designed0.250 INCHES NOMINAL IN
NSN4730-00-871-8376
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: B605-4 · 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
•
TUBE INSIDE DIAMETER FOR WHICH DESIGNED: 0.250 INCHES NOMINAL IN
•
FLANGE OUTSIDE DIAMETER: 0.368 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN
•
SLEEVE OUTSIDE DIAMETER: 0.250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SERRATED
•
MATERIAL: COPPER ALLOY
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
TECHNICAL CHARACTERISTICS (FLIS)
TUBE INSIDE DIAMETER FOR WHICH DESIGNED0.250 INCHES NOMINAL IN
FLANGE OUTSIDE DIAMETER0.368 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN
SLEEVE OUTSIDE DIAMETER0.250 INCHES NOMINAL IN
STYLE DESIGNATORSERRATED
MATERIALCOPPER ALLOY
CASEHARDENING INDICATORNOT CASEHARDENED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
9001-103-1015Interchangeable
interchangeable cross-reference
interchangeable
930409-30Interchangeable
interchangeable cross-reference
interchangeable
D282Interchangeable
interchangeable cross-reference
interchangeable
RF2500-3TInterchangeable
interchangeable cross-reference
interchangeable
RF02500-3TInterchangeable
interchangeable cross-reference
interchangeable
11728614-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B605-4?
B605-4 is a FILTER,RADIO FREQUENCY INTERFERE.
What parts can replace B605-4?
There are 14 known substitutes for B605-4: 9001-103-1015, 930409-30, D282 and 11 more. Substitute compatibility should be verified for your specific system.
Is B605-4 still available?
B605-4 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026