PartsTable TECHNICAL DATA SHEET
NSN 5365-00-421-1981Government record, cited

Spacer, Sleeve5365-00-421-1981

NSN 5365-00-421-1981 · NIIN 004211981
FSC 5365 — Bushings, Rings, Shims, and Spacers · FSG 53 — Hardware and Abrasives
Government record, cited
Also searched as  5365-00-421-1981 · 5365004211981 · NIIN 004211981 · 00-421-1981 · FSC 5365 Bushings, Rings, Shims, and Spacers
Nearby stock numbers  ·
Features
  • Spacer,sleeve — FSC 5365
  • Corner Shape: SQUARE ALL CORNERS
  • Body Outside Diameter: 0.5620 INCHES NOMINAL IN
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Body Inside Diameter: 0.4410 INCHES NOMINAL IN
  • Material: STEEL CORROSION RESISTING OVERALL
Identification
  • NSN: 5365-00-421-1981
  • NIIN: 004211981
  • FSC: 5365 — Bushings, Rings, Shims, and Spacers
  • FSG: 53 — Hardware and Abrasives
General Description

The Spacer,sleeve, cataloged under National Stock Number 5365-00-421-1981, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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
NSN5365-00-421-1981
Item NameSpacer,sleeve
FSC / FSG5365 / 53 — Bushings, Rings, Shims, and Spacers
StatusACTIVE
Corner ShapeSQUARE ALL CORNERS
Body Outside Diameter0.5620 INCHES NOMINAL IN
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Body Inside Diameter0.4410 INCHES NOMINAL IN
MaterialSTEEL CORROSION RESISTING OVERALL
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
4P23068-103A 3/2 Design control — primary reference
U.S. Government activity
No interchangeability data on file.
Other items in FSC 5365 — Bushings, Rings, Shims, and Spacers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5365-00-000-6078
5365-00-000-6078 · Item name not on file
5365-00-000-7436
5365-00-000-7436 · Item name not on file
5365-00-001-1292
PLUG,MACHINE THREAD
5365-00-001-1365
5365-00-001-1365 · Item name not on file
5365-00-001-1841
RING,TORQUE,TUBE,INBOARD,RUDDER
5365-00-001-1915
5365-00-001-1915 · Item name not on file
5365-00-001-1916
5365-00-001-1916 · Item name not on file
5365-00-001-1940
5365-00-001-1940 · Item name not on file

Frequently Asked Questions

What is NSN 5365-00-421-1981?

NSN 5365-00-421-1981 is a Spacer,sleeve, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.

What are the specifications of 5365-00-421-1981?

Key specifications for 5365-00-421-1981: Corner Shape: SQUARE ALL CORNERS; Body Outside Diameter: 0.5620 INCHES NOMINAL IN; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES; Overall Length: 0.7200 INCHES NOMINAL IN. 5 specifications are documented in the U.S. Government catalog.

Is NSN 5365-00-421-1981 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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