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P221 — TAPE,INSULATION,ELECTRICAL

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

P221: TAPE,INSULATION,ELECTRICAL.

The TAPE,INSULATION,ELECTRICAL is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include phase: SINGLE, material: PLASTIC POLYIMIDE BASIC, seal_type: LABYRINTH, base_length: 1.8750 INCHES NOMINAL IN, contact_type: PIN, current_type: AC. This part is cataloged in the U.S.

Government catalog under NSN 3130-00-102-8956, 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
P221
NSN: 3130-00-102-8956
NIINs: 001028956, 005314609, 008396132, 013484276, 015347044, 016316561
FSC: 3130 — Bearings, Mounted
CAGE: 19382 — REXNORD INDUSTRIES, LLC DIV LINK-BELT BEARING OPERATION (USA)
SPECIFICATIONS
phaseSINGLE
materialPLASTIC POLYIMIDE BASIC
seal_typeLABYRINTH
base_length1.8750 INCHES NOMINAL IN
contact_typePIN
current_typeAC
bore_diameter1.3125 INCHES NOMINAL IN
housing_width6.3750 INCHES NOMINAL IN
overall_width2.000 INCHES NOMINAL IN
seal_locationBOTH ENDS
alignment_typeSELF-ALIGNING
base_thickness0.8125 INCHES NOMINAL IN
NSN3130-00-102-8956
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: P221 · 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
•
SEAL TYPE: LABYRINTH
•
LUBRICATION MATERIAL: GREASE
•
LUBRICATION FITTING TYPE: HYDRAULIC
•
ASSEMBLY OVERALL LENGTH: 2.0312 INCHES NOMINAL IN
•
HOUSING HEIGHT: 3.7500 INCHES NOMINAL IN
•
MOUNTING SLOT LENGTH: 0.8125 INCHES NOMINAL IN
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
MOUNTING HOLE TYPE: SLOTTED
TYPICAL APPLICATIONS
  • Long-term data archival and compliance retention
  • Offsite backup and disaster recovery
  • Air-gapped ransomware protection
  • Cold storage tier for infrequently accessed data
TECHNICAL CHARACTERISTICS
SEAL TYPELABYRINTH
LUBRICATION MATERIALGREASE
LUBRICATION FITTING TYPEHYDRAULIC
ASSEMBLY OVERALL LENGTH2.0312 INCHES NOMINAL IN
HOUSING HEIGHT3.7500 INCHES NOMINAL IN
MOUNTING SLOT LENGTH0.8125 INCHES NOMINAL IN
INTERNAL FIT-UP DESIGNATIONSTANDARD
MOUNTING HOLE TYPESLOTTED
ROTATING ELEMENT LOCKING METHODDIRECT
SEAL LOCATIONBOTH ENDS
SUBSTITUTES & CROSS-REFERENCES 2
137-532-9002Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
P3U221HReference 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 P221?
P221 is a TAPE,INSULATION,ELECTRICAL.
What parts can replace P221?
There are 2 known substitutes for P221: 137-532-9002, P3U221H. Substitute compatibility should be verified for your specific system.
What is the NSN for P221?
P221 is cataloged in the U.S. Government catalog under NSN 3130-00-102-8956. This indicates validated use in U.S. government and defense supply chains.
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