PartsTable TECHNICAL DATA SHEET
NSN 5120-00-421-8750Government record, cited

Inserter, Bearing and Bushing5120-00-421-8750

NSN 5120-00-421-8750 · NIIN 004218750
FSC 5120 — Hand Tools, Nonedged, Nonpowered · FSG 51 — Hand Tools
Government record, cited
Also searched as  5120-00-421-8750 · 5120004218750 · NIIN 004218750 · 00-421-8750 · FSC 5120 Hand Tools, Nonedged, Nonpowered
Nearby stock numbers  ·
Features
  • Inserter,bearing and Bushing — FSC 5120
  • Boss Length: 0.532 INCHES NOMINAL IN
  • Diameter Across Flats: 1.500 INCHES NOMINAL IN
  • Pilot Diameter: 1.590 INCHES NOMINAL IN
  • Boss Diameter: 2.156 INCHES NOMINAL IN
  • Pilot Length: 0.344 INCHES NOMINAL IN
  • Drive End Type: BOSS AND PILOT
Identification
  • NSN: 5120-00-421-8750
  • NIIN: 004218750
  • FSC: 5120 — Hand Tools, Nonedged, Nonpowered
  • FSG: 51 — Hand Tools
General Description

The Inserter,bearing and Bushing, cataloged under National Stock Number 5120-00-421-8750, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-00-421-8750
Item NameInserter,bearing and Bushing
FSC / FSG5120 / 51 — Hand Tools, Nonedged, Nonpowered
StatusACTIVE
Boss Length0.532 INCHES NOMINAL IN
Diameter Across Flats1.500 INCHES NOMINAL IN
Pilot Diameter1.590 INCHES NOMINAL IN
Boss Diameter2.156 INCHES NOMINAL IN
Pilot Length0.344 INCHES NOMINAL IN
Drive End TypeBOSS AND PILOT
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
ReferenceMeaning
6PT87308 3/2 Design control — primary reference
U.S. Government activity
No interchangeability data on file.
Other items in FSC 5120 — Hand Tools, Nonedged, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5120-00-001-2642
ADAPTER,TORQUE WRENCH
5120-00-001-2644
ADAPTER,TORQUE WRENCH
5120-00-001-2650
INSERTER,SEAL
5120-00-001-2651
5120-00-001-2651 · Item name not on file
5120-00-001-2652
INSTALLING TOOL,SHAFT
5120-00-001-2653
REMOVER,PREFORMED PACKING
5120-00-001-2654
REMOVER,PREFORMED PACKING
5120-00-001-2655
SOCKET,WRENCH,FACE SPANNER

Frequently Asked Questions

What is NSN 5120-00-421-8750?

NSN 5120-00-421-8750 is a Inserter,bearing and Bushing, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.

What are the specifications of 5120-00-421-8750?

Key specifications for 5120-00-421-8750: Boss Length: 0.532 INCHES NOMINAL IN; Diameter Across Flats: 1.500 INCHES NOMINAL IN; Overall Length: 4.250 INCHES NOMINAL IN; Pilot Diameter: 1.590 INCHES NOMINAL IN. 6 specifications are documented in the U.S. Government catalog.

Is NSN 5120-00-421-8750 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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