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20577 — Trust Oila Black

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

20577: Trust Oila Black.

Compact 4 Port Travel USB 2.0 Hub for connecting additional USB devices to your laptop. Key specifications include material: STEEL OVERALL, overall_length: 1.760 INCHES NOMINAL IN, drive_end_shape: SQUARE SINGLE END INTERNAL, style_designator: OPEN END, surface_treatment: CHROMIUM OVERALL, drive_surface_size: 0.375 INCHES NOMINAL SINGLE END IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-369-2843, 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→ 20577
NSN: 4730-00-369-2843
NIINs: 003692843, 004291832, 005421736, 012295487, 014307765, 015726519, 016874249
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_length1.760 INCHES NOMINAL IN
drive_end_shapeSQUARE SINGLE END INTERNAL
style_designatorOPEN END
surface_treatmentCHROMIUM OVERALL
drive_surface_size0.375 INCHES NOMINAL SINGLE END IN
wrenching_surface_size18.0 MILLIMETERS NOMINAL SINGLE END MM
wrenching_surface_shapeOVAL SINGLE END INTERNAL
NSN4730-00-369-2843
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 20577 · 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
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GENERAL CHARACTERISTICS ITEM DESCRIPTION: MATL COMP G SPEC NO. 46M62;7.875 IN. O/A LG;1.125 IN. DIA AND 5.750 IN. LG OF SHAFT;W/4.625 IN. FLANGE DIA AT SHAFT BOTTOM AND W/4.125-7 US NAVY STANDARD HOSE THD LOCATE ON THE FLANGE BOTTOM;W/HEX HEAD AT TOP OF SHAFT;1.812 IN. DISTANCE ACROSS HEX HEAD FLATS IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONMATL COMP G SPEC NO. 46M62;7.875 IN. O/A LG;1.125 IN. DIA AND 5.750 IN. LG OF SHAFT;W/4.625 IN. FLANGE DIA AT SHAFT BOTTOM AND W/4.125-7 US NAVY STANDARD HOSE THD LOCATE ON THE FLANGE BOTTOM;W/HEX HEAD AT TOP OF SHAFT;1.812 IN. DISTANCE ACROSS HEX HEAD FLATS IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 20577?
20577 is a Trust Oila Black manufactured by Legrand. It is classified as a MRO (MRO_GENERAL).
What is the NSN for 20577?
20577 is cataloged in the U.S. Government catalog under NSN 4730-00-369-2843. 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.