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51638 — BEARING,PLAIN,ROD END

✓ Government record, cited
Legrand · BALL BEARING
PRODUCT OVERVIEW

51638: BEARING,PLAIN,ROD END.

The BEARING,PLAIN,ROD END is a Legrand industrial component. Key specifications include material: PLASTIC OVERALL, connection_type: THREADED EXTERNAL PIPE FIRST END, nominal_thread_size: 0.250 INCHES FIRST END IN, end_item_identification: 4910-01-627-0524; REFILL SYSTEM, FIRE, thread_series_designator: NPT FIRST END, part_name_assigned_by_controlling_agency: ELBOW 1/4 X 1/4 FOR AIR HOSE. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-933-6255, 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
51638
NSN: 3120-00-933-6255
NIINs: 009336255, 016503154
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 09455 — RBC TRANSPORT DYNAMICS CORP DIV RBC TRANSPORT DYNAMICS (USA)
SPECIFICATIONS
materialPLASTIC OVERALL
connection_typeTHREADED EXTERNAL PIPE FIRST END
nominal_thread_size0.250 INCHES FIRST END IN
end_item_identification4910-01-627-0524; REFILL SYSTEM, FIRE
thread_series_designatorNPT FIRST END
part_name_assigned_by_controlling_agencyELBOW 1/4 X 1/4 FOR AIR HOSE
nominal_outside_diameter_tube_accommodated0.250 INCHES SECOND END IN
NSN3120-00-933-6255
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 51638 · Legrand ⚠ 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
KEY FEATURES
•
SHANK THREAD LENGTH: 1.5900 INCHES MINIMUM AND 1.6800 INCHES MAXIMUM IN
•
BORE CENTER TO SHANK END DISTANCE: 2.6250 INCHES NOMINAL IN
•
INNER MEMBER WIDTH: 0.7450 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
•
HARDNESS RATING: 59.0 ROCKWELL C MINIMUM AND 63.0 ROCKWELL C MAXIMUM INNER MEMBER
•
OUTER MEMBER WIDTH: 0.5720 INCHES MINIMUM AND 0.5820 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: BALL TYPE
•
THREAD DIAMETER: 0.562 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SHANK THREAD LENGTH1.5900 INCHES MINIMUM AND 1.6800 INCHES MAXIMUM IN
BORE CENTER TO SHANK END DISTANCE2.6250 INCHES NOMINAL IN
INNER MEMBER WIDTH0.7450 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
HARDNESS RATING59.0 ROCKWELL C MINIMUM AND 63.0 ROCKWELL C MAXIMUM INNER MEMBER
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM ROD END BODY
OUTER MEMBER WIDTH0.5720 INCHES MINIMUM AND 0.5820 INCHES MAXIMUM IN
STYLE DESIGNATORBALL TYPE
THREAD DIAMETER0.562 INCHES NOMINAL IN
OVERALL LENGTH3.5050 INCHES MINIMUM AND 3.5150 INCHES MAXIMUM IN
LUBRICATION FEATUREGROOVE INNER MEMBER
SUBSTITUTES & CROSS-REFERENCES 1
HB10E114Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 51638?
51638 is a BEARING,PLAIN,ROD END manufactured by Legrand.
What parts can replace 51638?
There is 1 known substitute for 51638: HB10E114. Substitute compatibility should be verified for your specific system.
What is the NSN for 51638?
51638 is cataloged in the U.S. Government catalog under NSN 3120-00-933-6255. This indicates validated use in U.S. government and defense supply chains.
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