PartsTable TECHNICAL DATA SHEET

NSN 5325-01-417-6520Government record, cited

Lock Spring, Turnlock Fastener5325-01-417-6520

NSN 5325-01-417-6520 · NIIN 014176520 · Part number 9W-41557 PC.NO.15

Fm Af, Llc Dba American Fan Company · FSC 5325 — Fastening Devices · FSG 53 — Hardware and Abrasives · CAGE 75477

Government record, cited

NSN 5325-01-417-6520 — this item is cataloged by the U.S. Government under National Stock Number 5325-01-417-6520. Manufacturer of record part number: 9W-41557 PC.NO.15.

Also searched as 5325-01-417-6520 · 5325014176520 · NIIN 014176520 · 01-417-6520 · FSC 5325 Fastening Devices · CAGE 75477 · 9W-41557 PC.NO.15

Nearby stock numbers ← 5325-01-417-6519 Ring, Retaining · 5325-01-417-6521 Lock Spring, Turnlock Fastener →

Features

Lock Spring,turnlock Fastener — FSC 5325
1 manufacturer part number on file
Manufacturer of record: Fm Af, Llc Dba American Fan Company

Identification

NSN: 5325-01-417-6520
NIIN: 014176520
FSC: 5325 — Fastening Devices
FSG: 53 — Hardware and Abrasives
Primary part number: 9W-41557 PC.NO.15
Manufacturer: Fm Af, Llc Dba American Fan Company

General Description

The Lock Spring,turnlock Fastener, cataloged under National Stock Number 5325-01-417-6520, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Fm Af, Llc Dba American Fan Company. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	Lock Spring,turnlock Fastener
FSC / FSG	5325 — Fastening Devices (FSG 53)
Manufacturers	Fm Af, Llc Dba American Fan Company (CAGE 75477)

Technical Specifications

Parameter	Value
NSN	5325-01-417-6520
Primary Part Number	9W-41557 PC.NO.15
Item Name	Lock Spring,turnlock Fastener
FSC / FSG	5325 / 53 — Fastening Devices
Manufacturer	Fm Af, Llc Dba American Fan Company
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
9W-41557 PC.NO.15 PRIMARY	Fm Af, Llc Dba American Fan Company (USA)

Reference documents

Reference	Meaning
9W-41557 PC.NO.15	3/9 Design control — primary reference New Philadelphia Fan Co Buffalo Forge Marine Fans

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 5325-01-417-6520?

NSN 5325-01-417-6520 is a Lock Spring,turnlock Fastener, manufactured by Fm Af, Llc Dba American Fan Company, classified under FSC 5325, Fastening Devices. Status: active.

What part numbers are listed for NSN 5325-01-417-6520?

NSN 5325-01-417-6520 has 1 manufacturer part number on file: 9W-41557 PC.NO.15 (Fm Af, Llc Dba American Fan Company).

Is NSN 5325-01-417-6520 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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