PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

45175Locknut,tube Fitting

Cylinder City Inc · NSN 4730-01-419-6280 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-419-6280 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-419-6280. Primary manufacturer part number: 45175.
Features
  • Locknut,tube Fitting — FSC 4730
  • Thread Direction: RIGHT-HAND
  • Width Across Flats: 3.062 INCHES NOMINAL IN
  • Material: PLASTIC POLYAMIDE NYLON OVERALL
  • Nominal Tube Outside Diameter: 1.250 INCHES IN
  • Thread Class: 3B
  • Nut Style: TUBE FITTING LOCKNUT
  • Thread Quantity Per Inch: 12
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Plastic Polyamide Nylon Overall construction
General Description

The Locknut,tube Fitting, cataloged under National Stock Number 4730-01-419-6280, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Cylinder City Inc. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-419-6280
Primary Part Number45175
Item NameLocknut,tube Fitting
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerCylinder City Inc
StatusACTIVE
Thread DirectionRIGHT-HAND
Width Across Flats3.062 INCHES NOMINAL IN
MaterialPLASTIC POLYAMIDE NYLON OVERALL
Nominal Tube Outside Diameter1.250 INCHES IN
Thread Class3B
Nut StyleTUBE FITTING LOCKNUT
Thread Quantity Per Inch12
Nut Height1.500 INCHES NOMINAL IN
Nominal Thread Size1.750 INCHES IN
Fabrication MethodMACHINED
Thread SeriesUN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
6625-00-034-633345175 INTERCHANGEABLE
Board Assembly
Sypris Electronics, Llc Div Sypris Electronics, Llc - Colorado Field Services
5945-00-180-3747640U-2C-240A INTERCHANGEABLE
Relay,electromagnetic
Guardian Electric Manufacturing Co Div Guardian Electric Mfg Co
3455-00-254-8468C152 INTERCHANGEABLE
Cutter,milling,convex
F & D Tool Co Inc
5120-01-366-0626 INTERCHANGEABLE
Handle,socket Wrench
5110-01-384-580345-175 INTERCHANGEABLE
Stripper,wire,hand
Ideal Industries, Inc.
5120-01-430-3106 INTERCHANGEABLE
Handle,socket Wrench
Cross-Reference Index
Part NumberManufacturer
45175 PRIMARY Cylinder City Inc (USA)
LN45175 Cylinder City Inc (USA)
Related Parts
6625-00-034-6333INTERCHANGEABLE
BOARD ASSEMBLY
45175
5945-00-180-3747INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
640U-2C-240A
3455-00-254-8468INTERCHANGEABLE
CUTTER,MILLING,CONVEX
C152
5120-01-366-0626INTERCHANGEABLE
HANDLE,SOCKET WRENCH
5110-01-384-5803INTERCHANGEABLE
STRIPPER,WIRE,HAND
45-175
5120-01-430-3106INTERCHANGEABLE
HANDLE,SOCKET WRENCH

Frequently Asked Questions

What is NSN 4730-01-419-6280?

NSN 4730-01-419-6280 is a Locknut,tube Fitting, manufactured by Cylinder City Inc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-419-6280?

NSN 4730-01-419-6280 has 2 cross-referenced part numbers: 45175 (Cylinder City Inc), LN45175 (Cylinder City Inc).

What NSN replaces 4730-01-419-6280?

There are 6 known substitutes for 4730-01-419-6280: 6625-00-034-6333, 5945-00-180-3747, 3455-00-254-8468 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 45175?

Key specifications for 45175: Thread Direction: RIGHT-HAND; Width Across Flats: 3.062 INCHES NOMINAL IN; Material: PLASTIC POLYAMIDE NYLON OVERALL; Nominal Tube Outside Diameter: 1.250 INCHES IN. 12 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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