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646343 — RETAINER,BALL,BEARING

✓ Government record, cited
Legrand · HOSE FITTING
PRODUCT OVERVIEW

646343: RETAINER,BALL,BEARING.

Linkeo 19'' uprights - Set of 2 additional 19'' uprights - 47 U. Key specifications include material: STEEL OVERALL, bore_diameter: 3.7190 INCHES NOMINAL IN, outside_diameter: 4.2810 INCHES NOMINAL IN, style_designator: RETAINER AND BALLS, rolling_element_diameter: 0.3260 INCHES NOMINAL IN, retainer_fabrication_method: PRESSED. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-176-4587, 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
646343
NSN: 4730-00-176-4587
NIINs: 001764587, 005179088
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_diameter3.7190 INCHES NOMINAL IN
outside_diameter4.2810 INCHES NOMINAL IN
style_designatorRETAINER AND BALLS
retainer_piece_quantity1
rolling_element_diameter0.3260 INCHES NOMINAL IN
retainer_fabrication_methodPRESSED
NSN4730-00-176-4587
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 646343 · 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
•
FLOW ANGLE: 90.0 DEGREES
•
CONNECTION STYLE: PLAIN (TUBE) ALL ENDS
•
TUBING WALL NOMINAL THICKNESS FOR WHICH DESIGNED: 0.046 INCHES ALL ENDS IN
•
CONNECTION TYPE: UNTHREADED INTERNAL TUBE ALL ENDS
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.459 INCHES ALL ENDS IN
•
LEG LENGTH: 1.551 INCHES MINIMUM AND 1.591 INCHES MAXIMUM SECOND END IN
•
MATERIAL: TITANIUM ALLOY UNS R54520 OVERALL
TECHNICAL CHARACTERISTICS
FLOW ANGLE90.0 DEGREES
CONNECTION STYLEPLAIN (TUBE) ALL ENDS
TUBING WALL NOMINAL THICKNESS FOR WHICH DESIGNED0.046 INCHES ALL ENDS IN
CONNECTION TYPEUNTHREADED INTERNAL TUBE ALL ENDS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.459 INCHES ALL ENDS IN
LEG LENGTH1.551 INCHES MINIMUM AND 1.591 INCHES MAXIMUM SECOND END IN
LEG LENGTH2.320 INCHES MINIMUM AND 2.360 INCHES MAXIMUM FIRST END IN
MATERIALTITANIUM ALLOY UNS R54520 OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 646343?
646343 is a RETAINER,BALL,BEARING manufactured by Legrand.
What is the NSN for 646343?
646343 is cataloged in the U.S. Government catalog under NSN 4730-00-176-4587. This indicates validated use in U.S. government and defense supply chains.
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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.