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72557 — RESISTOR,CURRENT REGULATING

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

72557: RESISTOR,CURRENT REGULATING.

The RESISTOR,CURRENT REGULATING is a the manufacturer industrial component. Key specifications include base_type: OCTAL, current_type: AC/DC, current_range_in_amps: +0.68 TO 0.72, envelope_type_per_mil-e-1: T9 (4-2) PER SPEC MIL-E-1B, threshold_voltage_in_volts: 7.0, resistive_element_pin_connection: 2 AND 7. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-147-1384, 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
MRO→ MRO_GENERAL→ 72557
NSN: 3120-00-147-1384
NIINs: 001471384, 002799551, 013913269, 017164626
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 80254 — TEXTRON LYCOMING INC WILLIAMSPORT PLANT (USA)
SPECIFICATIONS
base_typeOCTAL
current_typeAC/DC
current_range_in_amps+0.68 TO 0.72
envelope_type_per_mil-e-1T9 (4-2) PER SPEC MIL-E-1B
threshold_voltage_in_volts7.0
resistive_element_pin_connection2 AND 7
part_name_assigned_by_controlling_agencySTRAP,WING TETHER,AVIONICS HATCH
NSN3120-00-147-1384
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 72557 · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 72557?
72557 is a RESISTOR,CURRENT REGULATING. It is classified as a MRO (MRO_GENERAL).
What is the NSN for 72557?
72557 is cataloged in the U.S. Government catalog under NSN 3120-00-147-1384. 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.