Setscrew5305-01-666-0539

NSN 5305-01-666-0539 · NIIN 016660539 · Part number 320547

Fmc Technologies Inc Dba Fmc Fluid Control · FSC 5305 — Screws · FSG 53 — Hardware and Abrasives · CAGE 71454

Government record, cited

NSN 5305-01-666-0539 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-666-0539. Manufacturer of record part number: 320547.

Also searched as 5305-01-666-0539 · 5305016660539 · NIIN 016660539 · 01-666-0539 · FSC 5305 Screws · CAGE 71454 · 320547

Nearby stock numbers ← 5305-01-666-0518 Screw, Machine · 5305-01-666-0573 Screw, Cap, Socket Head →

5305-01-666-0539 — Screws

Features

Setscrew — FSC 5305
Head Inside Diameter: 0.187 INCHES NOMINAL IN
Head Height: 0.187 INCHES NOMINAL IN
Nominal Thread Diameter: 0.375 INCHES IN
Head Style: HEXAGON
Head Length: 0.093 INCHES NOMINAL IN
Thread Quantity Per Inch: 16
Key Projection Length: 0.50 INCHES NOMINAL IN

Identification

NSN: 5305-01-666-0539
NIIN: 016660539
FSC: 5305 — Screws
FSG: 53 — Hardware and Abrasives
Primary part number: 320547
Manufacturer: Fmc Technologies Inc Dba Fmc Fluid Control

General Description

The Setscrew, cataloged under National Stock Number 5305-01-666-0539, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Fmc Technologies Inc Dba Fmc Fluid Control. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5305-01-666-0539
Primary Part Number	320547
Item Name	Setscrew
FSC / FSG	5305 / 53 — Screws
Manufacturer	Fmc Technologies Inc Dba Fmc Fluid Control
Status	ACTIVE
Head Inside Diameter	0.187 INCHES NOMINAL IN
Head Height	0.187 INCHES NOMINAL IN
Nominal Thread Diameter	0.375 INCHES IN
Head Style	HEXAGON
Head Length	0.093 INCHES NOMINAL IN
Thread Quantity Per Inch	16
Key Projection Length	0.50 INCHES NOMINAL IN
Head Diameter	0.375 INCHES NOMINAL 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
320547 PRIMARY	Fmc Technologies Inc Dba Fmc Fluid Control (USA)

Frequently Asked Questions

What is NSN 5305-01-666-0539?

NSN 5305-01-666-0539 is a Setscrew, manufactured by Fmc Technologies Inc Dba Fmc Fluid Control, classified under FSC 5305, Screws. Status: active.

What part numbers are listed for NSN 5305-01-666-0539?

NSN 5305-01-666-0539 has 1 manufacturer part number on file: 320547 (Fmc Technologies Inc Dba Fmc Fluid Control).

What are the specifications of 320547?

Key specifications for 320547: Head Inside Diameter: 0.187 INCHES NOMINAL IN; Head Height: 0.187 INCHES NOMINAL IN; Nominal Thread Diameter: 0.375 INCHES IN; Head Style: HEXAGON. 8 specifications are documented in the U.S. Government catalog.

Is NSN 5305-01-666-0539 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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