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P21 — TAPE,INSULATION,ELECTRICAL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

P21: 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 material: GLASS BASIC, nut_style: HEXAGON, reflector: NOT INCLUDED, nut_height: 0.484 INCHES NOMINAL IN, design_type: PUMPER AND RESCUE, fork_length: 40.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5365-00-019-0517, 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
P21
NSN: 5365-00-019-0517
NIINs: 000190517, 000218196, 002273323, 003742964, 003958476, 004197976, 005056716, 008565753, 008784088, 010714148, 011025288, 013542950, 013889047, 015814318, 016562490, 016830028
FSC: 5365 — Bushings, Rings, Shims, and Spacers
CAGE: 44218 — NORWALK COMPRESEER COMPANY INC DBA NORWALK COMPRESSOR COMPANY (USA)
SPECIFICATIONS
materialGLASS BASIC
nut_styleHEXAGON
reflectorNOT INCLUDED
nut_height0.484 INCHES NOMINAL IN
design_typePUMPER AND RESCUE
fork_length40.000 INCHES NOMINAL IN
load_rating4000.000 POUNDS MAXIMUM LBS
thread_class2B
body_diameter4.781 INCHES NOMINAL IN
bore_diameter1.2500 INCHES NOMINAL IN
nominal_width0.375 INCHES IN
overall_depth24.000 INCHES NOMINAL IN
NSN5365-00-019-0517
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TAPE,INSULATION,ELECTRICAL TITLE COMPONENT PN P21 MFR TAPE,INSULATION,ELECTR
KEY FEATURES
•
OUTSIDE DIAMETER: 1.586 INCHES MINIMUM AND 1.589 INCHES MAXIMUM IN
•
OVERALL THICKNESS: 0.125 INCHES NOMINAL IN
•
INSIDE DIAMETER: 0.755 INCHES MINIMUM AND 0.758 INCHES MAXIMUM IN
•
MATERIAL: STEEL CORROSION RESISTING
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
OUTSIDE DIAMETER1.586 INCHES MINIMUM AND 1.589 INCHES MAXIMUM IN
OVERALL THICKNESS0.125 INCHES NOMINAL IN
INSIDE DIAMETER0.755 INCHES MINIMUM AND 0.758 INCHES MAXIMUM IN
MATERIALSTEEL CORROSION RESISTING
SUBSTITUTES & CROSS-REFERENCES 1
510-0158-12561-152Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is P21?
P21 is a TAPE,INSULATION,ELECTRICAL.
What parts can replace P21?
There is 1 known substitute for P21: 510-0158-12561-152. Substitute compatibility should be verified for your specific system.
What is the NSN for P21?
P21 is cataloged in the U.S. Government catalog under NSN 5365-00-019-0517. 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.