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NSN 5305-01-617-2550Government record, cited

Setscrew5305-01-617-2550

NSN 5305-01-617-2550 · NIIN 016172550 · Part number 6743972
Naval Sea Systems Command · FSC 5305 — Screws · FSG 53 — Hardware and Abrasives · CAGE 53711
Government record, cited
NSN 5305-01-617-2550 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-617-2550. Manufacturer of record part number: 6743972.
Also searched as  5305-01-617-2550 · 5305016172550 · NIIN 016172550 · 01-617-2550 · FSC 5305 Screws · CAGE 53711 · 6743972
Nearby stock numbers  ·
Features
  • Setscrew — FSC 5305
  • Width Across Flats: 0.16 INCHES MINIMUM AND 0.22 INCHES MAXIMUM IN
  • Fastener Length: 0.47 INCHES MINIMUM AND 0.53 INCHES MAXIMUM IN
  • Thread Length: 0.47 INCHES MINIMUM AND 0.53 INCHES MAXIMUM IN
  • Nominal Thread Diameter: 0.375 INCHES IN
  • Head Style: HEADLESS (SETSCREW)
  • Thread Direction: RIGHT-HAND
  • Point Style: POINTLESS
Identification
  • NSN: 5305-01-617-2550
  • NIIN: 016172550
  • FSC: 5305 — Screws
  • FSG: 53 — Hardware and Abrasives
  • Primary part number: 6743972
  • Manufacturer: Naval Sea Systems Command
General Description

The Setscrew, cataloged under National Stock Number 5305-01-617-2550, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-617-2550
Primary Part Number6743972
Item NameSetscrew
FSC / FSG5305 / 53 — Screws
ManufacturerNaval Sea Systems Command
StatusACTIVE
Width Across Flats0.16 INCHES MINIMUM AND 0.22 INCHES MAXIMUM IN
Fastener Length0.47 INCHES MINIMUM AND 0.53 INCHES MAXIMUM IN
Thread Length0.47 INCHES MINIMUM AND 0.53 INCHES MAXIMUM IN
Nominal Thread Diameter0.375 INCHES IN
Head StyleHEADLESS (SETSCREW)
Thread DirectionRIGHT-HAND
Point StylePOINTLESS
Internal Drive StyleHEXAGON
Thread Class3A A
Thread Quantity Per Inch16
MaterialSTEEL CORROSION RESISTING OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
6743972 PRIMARY Naval Sea Systems Command (USA)
6743972 C4 Group, Llc (USA)
No interchangeability data on file.
Other items in FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016
5305-00-001-5016 · Item name not on file
5305-00-001-9160
5305-00-001-9160 · Item name not on file
5305-00-001-9629
SCREW,ADJUSTING CLEVIS
5305-00-001-9742
5305-00-001-9742 · Item name not on file
5305-00-001-9768
SCREW,CAP,SOCKET HEAD
5305-00-003-4306
SCREW,MACHINE
5305-00-003-6694
5305-00-003-6694 · Item name not on file
5305-00-003-6753
5305-00-003-6753 · Item name not on file

Frequently Asked Questions

What is NSN 5305-01-617-2550?

NSN 5305-01-617-2550 is a Setscrew, manufactured by Naval Sea Systems Command, classified under FSC 5305, Screws. Status: active.

What part numbers are listed for NSN 5305-01-617-2550?

NSN 5305-01-617-2550 has 2 manufacturer part numbers on file: 6743972 (Naval Sea Systems Command), 6743972 (C4 Group, Llc).

What are the specifications of 6743972?

Key specifications for 6743972: Width Across Flats: 0.16 INCHES MINIMUM AND 0.22 INCHES MAXIMUM IN; Fastener Length: 0.47 INCHES MINIMUM AND 0.53 INCHES MAXIMUM IN; Thread Length: 0.47 INCHES MINIMUM AND 0.53 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.375 INCHES IN. 12 specifications are documented in the U.S. Government catalog.

Is NSN 5305-01-617-2550 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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