Ring, Special5365-01-161-9161

NSN 5365-01-161-9161 · NIIN 011619161 · Part number 1P6172

Caterpillar Inc Div Caterpillar Defense · FSC 5365 — Bushings, Rings, Shims, and Spacers · FSG 53 — Hardware and Abrasives · CAGE 11083

Government record, cited

NSN 5365-01-161-9161 — this item is cataloged by the U.S. Government under National Stock Number 5365-01-161-9161. Manufacturer of record part number: 1P6172.

Also searched as 5365-01-161-9161 · 5365011619161 · NIIN 011619161 · 01-161-9161 · FSC 5365 Bushings, Rings, Shims, and Spacers · CAGE 11083 · 1P6172 · TLD230-10-8E

Nearby stock numbers ← 5365-01-161-9152 Plug, Machine Thread · 5365-01-161-9190 Shim →

Features

Ring,special — FSC 5365
General Characteristics Item Description: IRON,1E20 FSCM 11083; 2.307 IN. MIN,2.317 IN. MAX LG; 1.9365 IN. MIN,1.9375 IN. MAX ID; 2.853 IN. MIN,2.857 IN. MAX OD; 3 GROOVES ALONG THE OD 0.129 IN. MIN,0.133 IN. MAX W IN
2 manufacturer part numbers on file
Manufacturer of record: Caterpillar Inc Div Caterpillar Defense

Identification

NSN: 5365-01-161-9161
NIIN: 011619161
FSC: 5365 — Bushings, Rings, Shims, and Spacers
FSG: 53 — Hardware and Abrasives
Primary part number: 1P6172
Manufacturer: Caterpillar Inc Div Caterpillar Defense

General Description

The Ring,special, cataloged under National Stock Number 5365-01-161-9161, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5365-01-161-9161
Primary Part Number	1P6172
Item Name	Ring,special
FSC / FSG	5365 / 53 — Bushings, Rings, Shims, and Spacers
Manufacturer	Caterpillar Inc Div Caterpillar Defense
Status	ACTIVE
General Characteristics Item Description	IRON,1E20 FSCM 11083; 2.307 IN. MIN,2.317 IN. MAX LG; 1.9365 IN. MIN,1.9375 IN. MAX ID; 2.853 IN. MIN,2.857 IN. MAX OD; 3 GROOVES ALONG THE OD 0.129 IN. MIN,0.133 IN. MAX W 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

Part Number	Manufacturer
TLD230-10-8E	Reid Products Inc. Dba Reid Products Inc (USA)
1P6172 PRIMARY	Caterpillar Inc Div Caterpillar Defense (USA)

Frequently Asked Questions

What is NSN 5365-01-161-9161?

NSN 5365-01-161-9161 is a Ring,special, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.

What part numbers are listed for NSN 5365-01-161-9161?

NSN 5365-01-161-9161 has 2 manufacturer part numbers on file: TLD230-10-8E (Reid Products Inc. Dba Reid Products Inc), 1P6172 (Caterpillar Inc Div Caterpillar Defense).

What are the specifications of 1P6172?

Key specifications for 1P6172: General Characteristics Item Description: IRON,1E20 FSCM 11083; 2.307 IN. MIN,2.317 IN. MAX LG; 1.9365 IN. MIN,1.9375 IN. MAX ID; 2.853 IN. MIN,2.857 IN. MAX OD; 3 GROOVES ALONG THE OD 0.129 IN. MIN,0.133 IN. MAX W IN. 1 specification is documented in the U.S. Government catalog.

Is NSN 5365-01-161-9161 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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