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N420FB — COUPLING,DELRIN,CHAIN

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

N420FB: COUPLING,DELRIN,CHAIN.

The COUPLING,DELRIN,CHAIN is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: 3.640 IN. HIGH,2.030 IN.

WIDE; TWO HOLES 0.250-28-UNF-2B; TEMP RANGE FROM -20 DEG FER TO 150 DEG FER IN. This part is cataloged in the U.S. Government catalog under NSN 4730-01-197-8884, 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
N420FB
NSN: 4730-01-197-8884
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 76474 — EMERSON POWER TRANSMISSION CORPORATION DIV EPT (USA)
SPECIFICATIONS
general_characteristics_item_description3.640 IN. HIGH,2.030 IN. WIDE; TWO HOLES 0.250-28-UNF-2B; TEMP RANGE FROM -20 DEG FER TO 150 DEG FER IN
NSN4730-01-197-8884
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: N420FB · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: 3.640 IN. HIGH,2.030 IN. WIDE; TWO HOLES 0.250-28-UNF-2B; TEMP RANGE FROM -20 DEG FER TO 150 DEG FER IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTION3.640 IN. HIGH,2.030 IN. WIDE; TWO HOLES 0.250-28-UNF-2B; TEMP RANGE FROM -20 DEG FER TO 150 DEG FER IN
SUBSTITUTES & CROSS-REFERENCES 1
0361C0035Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is N420FB?
N420FB is a COUPLING,DELRIN,CHAIN.
What parts can replace N420FB?
There is 1 known substitute for N420FB: 0361C0035. Substitute compatibility should be verified for your specific system.
What is the NSN for N420FB?
N420FB is cataloged in the U.S. Government catalog under NSN 4730-01-197-8884. 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.