Ring, Retaining, Instrument5365-01-258-1121

NSN 5365-01-258-1121 · NIIN 012581121

FSC 5365 — Bushings, Rings, Shims, and Spacers · FSG 53 — Hardware and Abrasives

Government record, cited

Also searched as 5365-01-258-1121 · 5365012581121 · NIIN 012581121 · 01-258-1121 · FSC 5365 Bushings, Rings, Shims, and Spacers

Nearby stock numbers ← 5365-01-258-1080 Ring, Test · 5365-01-258-1479 Spacer, Plate →

Features

Ring,retaining,instrument — FSC 5365
General Characteristics Item Description: OUTSIDE DIA. 2.750 IN,INSIDE DIA. 1.810 IN,MATL CRES,CLASS 303 PER ASTM A 582,COND A COLD FINISHED. THREE HOLES EQUALLY SPACED 0.143 IN MIN AND 0.148 IN MAX,CBORE 0.219 IN DIA,0.120 IN DEEP. TWO HOLES 0.113 IN DIA EQUALLY SPACED; TWO HOLES PLACED 0.9775 INMIN AND 0.9785 IN MAX FROM CENTER,SIZED 0.0625 IN MIN AND 0.0628 IN MAX IN

Identification

NSN: 5365-01-258-1121
NIIN: 012581121
FSC: 5365 — Bushings, Rings, Shims, and Spacers
FSG: 53 — Hardware and Abrasives

General Description

The Ring,retaining,instrument, cataloged under National Stock Number 5365-01-258-1121, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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

Parameter	Value
NSN	5365-01-258-1121
Item Name	Ring,retaining,instrument
FSC / FSG	5365 / 53 — Bushings, Rings, Shims, and Spacers
Status	ACTIVE
General Characteristics Item Description	OUTSIDE DIA. 2.750 IN,INSIDE DIA. 1.810 IN,MATL CRES,CLASS 303 PER ASTM A 582,COND A COLD FINISHED. THREE HOLES EQUALLY SPACED 0.143 IN MIN AND 0.148 IN MAX,CBORE 0.219 IN DIA,0.120 IN DEEP. TWO HOLES 0.113 IN DIA EQUALLY SPACED; TWO HOLES PLACED 0.9775 INMIN AND 0.9785 IN MAX FROM CENTER,SIZED 0.0625 IN MIN AND 0.0628 IN MAX IN

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
204147-001	3/9 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 5365-01-258-1121?

NSN 5365-01-258-1121 is a Ring,retaining,instrument, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.

What are the specifications of 5365-01-258-1121?

Key specifications for 5365-01-258-1121: General Characteristics Item Description: OUTSIDE DIA. 2.750 IN,INSIDE DIA. 1.810 IN,MATL CRES,CLASS 303 PER ASTM A 582,COND A COLD FINISHED. THREE HOLES EQUALLY SPACED 0.143 IN MIN AND 0.148 IN MAX,CBORE 0.219 IN DIA,0.120 IN DEEP. TWO HOLES 0.113 IN DIA EQUALLY SPACED; TWO HOLES PLACED 0.9775 INMIN AND 0.9785 IN MAX FROM CENTER,SIZED 0.0625 IN MIN AND 0.0628 IN MAX IN; End Item Identification: TGG COPLANARITY UNIT. 1 specification is documented in the U.S. Government catalog.

Is NSN 5365-01-258-1121 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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