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Technical Data Sheet
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1021 ITEM 4 — 1021 ITEM 4

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

1021 ITEM 4: 1021 ITEM 4.

The 1021 ITEM 4 is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4730-01-456-3906, 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
1021 ITEM 4
NSN: 4730-01-456-3906
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 3T9T9 — SWAGELOK CO (USA)
SPECIFICATIONS
Part Number1021 ITEM 4
NSN4730-01-456-3906
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1021 ITEM 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
SUBSTITUTES & CROSS-REFERENCES 2
14-6N-MSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
1021Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 1021 ITEM 4?
1021 ITEM 4 is a 1021 ITEM 4.
What parts can replace 1021 ITEM 4?
There are 2 known substitutes for 1021 ITEM 4: 14-6N-M, 1021. Substitute compatibility should be verified for your specific system.
What is the NSN for 1021 ITEM 4?
1021 ITEM 4 is cataloged in the U.S. Government catalog under NSN 4730-01-456-3906. This indicates validated use in U.S. government and defense supply chains.
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