Ring, Retaining5325-01-166-5845

NSN 5325-01-166-5845 · NIIN 011665845 · Part number MS-201BGX1

Siemens Energy, Inc. · FSC 5325 — Fastening Devices · FSG 53 — Hardware and Abrasives · CAGE 16712

Government record, cited

NSN 5325-01-166-5845 — this item is cataloged by the U.S. Government under National Stock Number 5325-01-166-5845. Manufacturer of record part number: MS-201BGX1.

Also searched as 5325-01-166-5845 · 5325011665845 · NIIN 011665845 · 01-166-5845 · FSC 5325 Fastening Devices · CAGE 16712 · MS-201BGX1

Nearby stock numbers ← 5325-01-166-5321 Grommet Blank, Nonmetallic · 5325-01-166-5846 Ring, Retaining →

Features

Ring,retaining — FSC 5325
1 manufacturer part number on file
Manufacturer of record: Siemens Energy, Inc.

Identification

NSN: 5325-01-166-5845
NIIN: 011665845
FSC: 5325 — Fastening Devices
FSG: 53 — Hardware and Abrasives
Primary part number: MS-201BGX1
Manufacturer: Siemens Energy, Inc.

General Description

The Ring,retaining, cataloged under National Stock Number 5325-01-166-5845, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Siemens Energy, Inc.. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts

Item Name	Ring,retaining
FSC / FSG	5325 — Fastening Devices (FSG 53)
Manufacturers	Siemens Energy, Inc. (CAGE 16712)

Technical Specifications

Parameter	Value
NSN	5325-01-166-5845
Primary Part Number	MS-201BGX1
Item Name	Ring,retaining
FSC / FSG	5325 / 53 — Fastening Devices
Manufacturer	Siemens Energy, Inc.
Status	ACTIVE

Lifecycle & Compliance

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

Cross-Reference Index

Part Number	Manufacturer
MS-201BGX1 PRIMARY	Siemens Energy, Inc. (USA)

No interchangeability data on file.

Other items in FSC 5325 — Fastening Devices

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5325-00-000-1884

5325-00-000-1884 · Item name not on file

5325-00-000-9988

5325-00-000-9988 · Item name not on file

5325-00-001-1567

RING,RETAINING

5325-00-001-2043

FASTENER,PANEL

5325-00-001-3842

RING,RETAINING

5325-00-001-3858

5325-00-001-3858 · Item name not on file

5325-00-001-3871

RING,RETAINING

5325-00-001-4317

RING,RETAINING

Frequently Asked Questions

What is NSN 5325-01-166-5845?

NSN 5325-01-166-5845 is a Ring,retaining, manufactured by Siemens Energy, Inc., classified under FSC 5325, Fastening Devices. Status: active.

What part numbers are listed for NSN 5325-01-166-5845?

NSN 5325-01-166-5845 has 1 manufacturer part number on file: MS-201BGX1 (Siemens Energy, Inc.).

Is NSN 5325-01-166-5845 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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