PartsTable TECHNICAL DATA SHEET

NSN 5325-01-171-0508Government record, cited

Ring, Retaining5325-01-171-0508

NSN 5325-01-171-0508 · NIIN 011710508 · Part number RS640-110

Tactair Fluid Controls Inc · FSC 5325 — Fastening Devices · FSG 53 — Hardware and Abrasives · CAGE 70236

Government record, cited

NSN 5325-01-171-0508 — this item is cataloged by the U.S. Government under National Stock Number 5325-01-171-0508. Manufacturer of record part number: RS640-110.

Also searched as 5325-01-171-0508 · 5325011710508 · NIIN 011710508 · 01-171-0508 · FSC 5325 Fastening Devices · CAGE 70236 · RS640-110 · 8427015

Nearby stock numbers ← 5325-01-171-0135 Grommet, Nonmetallic · 5325-01-171-0521 Grommet, Nonmetallic →

Features

Ring,retaining — FSC 5325
1 manufacturer part number on file
Manufacturer of record: Tactair Fluid Controls Inc

Identification

NSN: 5325-01-171-0508
NIIN: 011710508
FSC: 5325 — Fastening Devices
FSG: 53 — Hardware and Abrasives
Primary part number: RS640-110
Manufacturer: Tactair Fluid Controls Inc

General Description

The Ring,retaining, cataloged under National Stock Number 5325-01-171-0508, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Tactair Fluid Controls Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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	Tactair Fluid Controls Inc (CAGE 70236)

Technical Specifications

Parameter	Value
NSN	5325-01-171-0508
Primary Part Number	RS640-110
Item Name	Ring,retaining
FSC / FSG	5325 / 53 — Fastening Devices
Manufacturer	Tactair Fluid Controls 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)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
RS640-110	Tactair Fluid Controls Inc (USA)

Reference documents

Reference	Meaning
RS640-110	3/9 Design control — primary reference U.S. Government activity
8427015	5/2 Secondary reference U.S. Government activity

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 5325-01-171-0508?

NSN 5325-01-171-0508 is a Ring,retaining, manufactured by Tactair Fluid Controls Inc, classified under FSC 5325, Fastening Devices. Status: active.

What part numbers are listed for NSN 5325-01-171-0508?

NSN 5325-01-171-0508 has 1 manufacturer part number on file: RS640-110 (Tactair Fluid Controls Inc).

Is NSN 5325-01-171-0508 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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