PartsTable TECHNICAL DATA SHEET

NSN 5325-01-310-4440Government record, cited

Ring, Retaining5325-01-310-4440

NSN 5325-01-310-4440 · NIIN 013104440 · Part number 90197-2

Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok · FSC 5325 — Fastening Devices · FSG 53 — Hardware and Abrasives · CAGE 28968

Government record, cited

NSN 5325-01-310-4440 — this item is cataloged by the U.S. Government under National Stock Number 5325-01-310-4440. Manufacturer of record part number: 90197-2.

Also searched as 5325-01-310-4440 · 5325013104440 · NIIN 013104440 · 01-310-4440 · FSC 5325 Fastening Devices · CAGE 28968 · 90197-2 · N8211G6Y/MM-1 ITEM 13 · 7165 ITEM 5

Nearby stock numbers ← 5325-01-310-4059 · 5325-01-310-4441 Ring, Retaining →

Features

Ring,retaining — FSC 5325
2 manufacturer part numbers on file
Manufacturer of record: Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok

Identification

NSN: 5325-01-310-4440
NIIN: 013104440
FSC: 5325 — Fastening Devices
FSG: 53 — Hardware and Abrasives
Primary part number: 90197-2
Manufacturer: Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok

General Description

The Ring,retaining, cataloged under National Stock Number 5325-01-310-4440, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Ring,retaining
FSC / FSG	5325 — Fastening Devices (FSG 53)
Manufacturers	Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok (CAGE 28968)

Technical Specifications

Parameter	Value
NSN	5325-01-310-4440
Primary Part Number	90197-2
Item Name	Ring,retaining
FSC / FSG	5325 / 53 — Fastening Devices
Manufacturer	Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok
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
90197-2 PRIMARY	Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok (USA)
7165 ITEM 5	Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok (USA)

Reference documents

Reference	Meaning
N8211G6Y/MM-1 ITEM 13	C/1 Advisory reference — outside the item-of-supply concept Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok

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 5325-01-310-4440?

NSN 5325-01-310-4440 is a Ring,retaining, manufactured by Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok, classified under FSC 5325, Fastening Devices. Status: active.

What part numbers are listed for NSN 5325-01-310-4440?

NSN 5325-01-310-4440 has 2 manufacturer part numbers on file: 90197-2 (Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok), 7165 ITEM 5 (Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok).

Is NSN 5325-01-310-4440 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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