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071543 — BEARING,ROLLER,TAPERED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

071543: BEARING,ROLLER,TAPERED.

The BEARING,ROLLER,TAPERED is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: RUBBER SYNTHETIC OVERALL, hole_diameter: 0.730 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, outside_diameter: 7.330 INCHES NOMINAL IN, special_features: HAS ONE SLOT IN GASKET 1.402 IN LONG AND 0.510 IN WIDE ROUNDED ENDS;HAS NOTCHES AROUND ID AND OD EQUALLY SPACED IN, style_designator: CIRCULAR, aperture_diameter: 4.160 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-440-1995, 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
071543
NSN: 5330-01-440-1995
NIINs: 014401995, 016223444
FSC: 5330 — Packing and Gasket Materials
CAGE: 34228 — L3 TECHNOLOGIES, INC. DIV L3 KEO (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
hole_diameter0.730 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
outside_diameter7.330 INCHES NOMINAL IN
special_featuresHAS ONE SLOT IN GASKET 1.402 IN LONG AND 0.510 IN WIDE ROUNDED ENDS;HAS NOTCHES AROUND ID AND OD EQUALLY SPACED IN
style_designatorCIRCULAR
aperture_diameter4.160 INCHES NOMINAL IN
bolt_hole_quantity2
bolt_circle_diameter5.745 INCHES NOMINAL IN
cross-sectional_thickness0.125 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationMIL-R-6855/1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencyGASKET,HEATER
NSN5330-01-440-1995
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 071543 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CROSS-SECTIONAL THICKNESS: 0.125 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CIRCULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-6855/1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
OUTSIDE DIAMETER: 7.330 INCHES NOMINAL IN
•
APERTURE DIAMETER: 4.160 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 2
•
BOLT CIRCLE DIAMETER: 5.745 INCHES NOMINAL IN
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
CROSS-SECTIONAL THICKNESS0.125 INCHES NOMINAL IN
STYLE DESIGNATORCIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-6855/1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OUTSIDE DIAMETER7.330 INCHES NOMINAL IN
APERTURE DIAMETER4.160 INCHES NOMINAL IN
BOLT HOLE QUANTITY2
BOLT CIRCLE DIAMETER5.745 INCHES NOMINAL IN
SPECIAL FEATURESHAS ONE SLOT IN GASKET 1.402 IN LONG AND 0.510 IN WIDE ROUNDED ENDS;HAS NOTCHES AROUND ID AND OD EQUALLY SPACED IN
PART NAME ASSIGNED BY CONTROLLING AGENCYGASKET,HEATER
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 071543?
071543 is a BEARING,ROLLER,TAPERED.
What is the NSN for 071543?
071543 is cataloged in the U.S. Government catalog under NSN 5330-01-440-1995. 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.