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74871 — ELECTRICAL SYNCHRONIZER SUBASSEM

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

74871: ELECTRICAL SYNCHRONIZER SUBASSEM.

ELECTRICAL SYNCHRONIZER SUBASSEM. Key specifications include width: 5.669 INCHES NOMINAL IN, height: 2.835 INCHES NOMINAL IN, length: 6.812 INCHES NOMINAL IN, material: ALUMINUM ALLOY BODY, scale_range: -328.0 TO 1712.0 DEG FAHRENHEIT SINGLE INDICATOR SINGLE SCALE, contact_type: PLUG-IN SOCKET. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-088-1790, 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→ 74871
NSN: 3120-00-088-1790
NIINs: 000881790, 001501864, 004935039, 010682127
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 11599 — TRIUMPH ENGINE CONTROL SYSTEMS LLC (USA)
SPECIFICATIONS
width5.669 INCHES NOMINAL IN
height2.835 INCHES NOMINAL IN
length6.812 INCHES NOMINAL IN
materialALUMINUM ALLOY BODY
scale_range-328.0 TO 1712.0 DEG FAHRENHEIT SINGLE INDICATOR SINGLE SCALE
contact_typePLUG-IN SOCKET
corner_shapeUNDERCUT LEFT FLANGE BODY CORNER
flange_shapeOVAL WITH HOLES SECOND END
flange_width0.1240 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN
overall_width2.187 INCHES NOMINAL IN
overall_height0.750 INCHES NOMINAL IN
overall_length10.750 INCHES NOMINAL IN
NSN3120-00-088-1790
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 74871 · 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
KEY FEATURES
•
SURFACE FINISH: 32.0 MICROINCHES LEFT END SURFACE OF BODY AND FLANGE
•
CORNER SHAPE: CHAMFERED INSIDE LEFT CORNER
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES LEFT END SURFACE OF BODY AND FLANGE
SURFACE FINISH250.0 MICROINCHES RIGHT END SURFACE OF LEFT FLANGE
SURFACE FINISH250.0 MICROINCHES RIGHT END SURFACE OF BODY
SURFACE FINISH250.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF FLANGE
SURFACE FINISH32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
SURFACE FINISH32.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
CORNER SHAPECHAMFERED INSIDE LEFT CORNER
CORNER SHAPESQUARE INSIDE RIGHT CORNER
CORNER SHAPESQUARE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE OUTSIDE LEFT CORNER
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 74871?
74871 is a ELECTRICAL SYNCHRONIZER SUBASSEM. It is classified as a MRO (MRO_GENERAL).
What is the NSN for 74871?
74871 is cataloged in the U.S. Government catalog under NSN 3120-00-088-1790. This indicates validated use in U.S. government and defense supply chains.
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