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A54R1 — MICROCIRCUIT,DIGITAL

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

A54R1: MICROCIRCUIT,DIGITAL.

The MICROCIRCUIT,DIGITAL is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, nut_style: HEXAGON, nut_height: 0.875 INCHES NOMINAL IN, thread_class: 2B, thread_series: UN, shoulder_width: 0.062 INCHES NOMINAL IN. 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
A54R1
NSN: 4730-00-142-2044
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 1Z473 — PAKON INC DBA IMPAK DIVISION (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
nut_styleHEXAGON
nut_height0.875 INCHES NOMINAL IN
thread_class2B
thread_seriesUN
shoulder_width0.062 INCHES NOMINAL IN
special_featuresKNURLED ON OD
thread_directionLEFT-HAND
width_across_flats1.500 INCHES NOMINAL IN
nominal_thread_size1.312 INCHES IN
shoulder_step_width0.125 INCHES NOMINAL IN
shoulder_seat_diameter1.125 INCHES NOMINAL IN
NSN4730-00-142-2044
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: A54R1 · 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
•
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

No substitute or cross-reference records for this part.

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 A54R1?
A54R1 is a MICROCIRCUIT,DIGITAL.
What is the NSN for A54R1?
A54R1 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.