PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

N5-4Cap,tube

Kerotest Manufacturing Corp. · NSN 4730-01-201-3919 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-201-3919 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-201-3919. Primary manufacturer part number: N5-4.
Features
  • Cap,tube — FSC 4730
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
  • 3 verified cross-references
  • Primary manufacturer: Kerotest Manufacturing Corp.
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Cap,tube, cataloged under National Stock Number 4730-01-201-3919, 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 Kerotest Manufacturing Corp.. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-201-3919
Primary Part NumberN5-4
Item NameCap,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerKerotest Manufacturing Corp.
StatusACTIVE
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4730-00-260-8284A-4544 INTERCHANGEABLE
Cap,tube
Mueller Brass Co.
7530-01-177-0116 INTERCHANGEABLE
Label
Cross-Reference Index
Part NumberManufacturer
N5-4 Kerotest Manufacturing Corp. (USA)
845-1889863 PC 122 Naval Ship Systems Command (USA)
2620-219X1 PC122 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
Related Parts
4730-00-260-8284INTERCHANGEABLE
CAP,TUBE
A-4544
7530-01-177-0116INTERCHANGEABLE
LABEL

Frequently Asked Questions

What is NSN 4730-01-201-3919?

NSN 4730-01-201-3919 is a Cap,tube, manufactured by Kerotest Manufacturing Corp., classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-201-3919?

NSN 4730-01-201-3919 has 3 cross-referenced part numbers: N5-4 (Kerotest Manufacturing Corp.), 845-1889863 PC 122 (Naval Ship Systems Command), 2620-219X1 PC122 (Electric Boat Corporation Div General Dynamics Electric Boat).

What NSN replaces 4730-01-201-3919?

There are 2 known substitutes for 4730-01-201-3919: 4730-00-260-8284, 7530-01-177-0116. Verify interchangeability with system specifications before substitution.

What are the specifications of N5-4?

Key specifications for N5-4: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.. 2 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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