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Technical Data Sheet
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20284 — MICROCIRCUIT,DIGITAL

✓ Government record, cited
Legrand · HOSE FITTING
PRODUCT OVERVIEW

20284: MICROCIRCUIT,DIGITAL.

- Aluminum case covered with leatherette - Carbon-Look surface, scratch resistant - USB 2.0 interface 480 Mbit/s - LED for Power and HDD access - HDD heigt up to 9.5 mm - HDD capacity no limit - OS independent - Plug & Play and Hot Swap This part is cataloged in the U.S. Government catalog under NSN 4730-00-142-2044, 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
20284
NSN: 4730-00-142-2044
NIINs: 001422044, 005311327, 006441645, 010880813, 011696657, 012212045, 012388753, 012709562
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 1Z473 — PAKON INC DBA IMPAK DIVISION (USA)
SPECIFICATIONS
guideNOT INCLUDED
diameter0.438 INCHES NOMINAL IN
materialNICKEL ALLOY SEAT
nut_styleHEXAGON
body_width0.245 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
flute_typeINTEGRAL
nut_height0.875 INCHES NOMINAL IN
shank_typeSTRAIGHT
body_height0.180 INCHES MAXIMUM IN
body_length0.755 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN
bonnet_typeINSIDE SPRING
reamer_typeFLUTED CHUCKING
NSN4730-00-142-2044
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 20284 · Legrand ⚠ 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
•
WIDTH ACROSS FLATS: 1.500 INCHES NOMINAL IN
•
SHOULDER STEP WIDTH: 0.125 INCHES NOMINAL IN
•
SHOULDER WIDTH: 0.062 INCHES NOMINAL IN
•
THREAD SERIES: UN
•
THREAD DIRECTION: LEFT-HAND
•
NOMINAL THREAD SIZE: 1.312 INCHES IN
•
NUT HEIGHT: 0.875 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.500 INCHES NOMINAL IN
SHOULDER STEP WIDTH0.125 INCHES NOMINAL IN
SHOULDER WIDTH0.062 INCHES NOMINAL IN
THREAD SERIESUN
THREAD DIRECTIONLEFT-HAND
NOMINAL THREAD SIZE1.312 INCHES IN
NUT HEIGHT0.875 INCHES NOMINAL IN
SPECIAL FEATURESKNURLED ON OD
NUT STYLEHEXAGON
THREAD CLASS2B
SUBSTITUTES & CROSS-REFERENCES 1
A54R1Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 20284?
20284 is a MICROCIRCUIT,DIGITAL manufactured by Legrand.
What parts can replace 20284?
There is 1 known substitute for 20284: A54R1. Substitute compatibility should be verified for your specific system.
What is the NSN for 20284?
20284 is cataloged in the U.S. Government catalog under NSN 4730-00-142-2044. 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.