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49821-1 — MICROCIRCUIT,DIGITAL

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

49821-1: MICROCIRCUIT,DIGITAL.

The MICROCIRCUIT,DIGITAL is a the manufacturer industrial component. Key specifications include special_features: PROGRAMMED. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-196-2055, 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
49821-1
NSN: 4730-00-196-2055
NIINs: 001962055, 014151501
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 82386 — JAIDINGER MANUFACTURING CO INC DBA JAIDINGER MANUFACTURING CO INC (USA)
SPECIFICATIONS
special_featuresPROGRAMMED
NSN4730-00-196-2055
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 49821-1 · 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 10
9162Reference document
Same NSN cross-reference
Reference document — Secondary reference
D2906-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
3B7738Reference document
Same NSN cross-reference
Reference document — Secondary reference
221-130Reference document
Same NSN cross-reference
Reference document — Secondary reference
2906X4DReference document
Same NSN cross-reference
Reference document — Secondary reference
BM11623-83Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 49821-1?
49821-1 is a MICROCIRCUIT,DIGITAL.
What parts can replace 49821-1?
There are 10 known substitutes for 49821-1: 9162, D2906-4, 3B7738 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 49821-1?
49821-1 is cataloged in the U.S. Government catalog under NSN 4730-00-196-2055. 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.