PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

304-C-8Hydraulic Cap

Hose Connection Inc Div Hose Connections, Inc · NSN 4730-01-644-2686 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-644-2686 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-644-2686. Primary manufacturer part number: 304-C-8.
Features
  • Hydraulic Cap — FSC 4730
  • 2 verified cross-references
  • Primary manufacturer: Hose Connection Inc Div Hose Connections, Inc
Applications
  • Plumbing and fluid distribution
  • Industrial piping systems
  • Fuel and lubricant distribution
General Description

The Hydraulic Cap, cataloged under National Stock Number 4730-01-644-2686, 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 Hose Connection Inc Div Hose Connections, Inc. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameHydraulic Cap
FSC / FSG4730 — No Item Name Available (FSG 47)
ManufacturersHose Connection Inc Div Hose Connections, Inc (CAGE 5UPA4); Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service (CAGE 01365)
Technical Specifications
ParameterValue
NSN4730-01-644-2686
Primary Part Number304-C-8
Item NameHydraulic Cap
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerHose Connection Inc Div Hose Connections, Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4730-00-585-6565 INTERCHANGEABLE
Cap,tube
5340-01-696-9559304-C-8 INTERCHANGEABLE
Cap,protective,nut and Bolt Hea
Air-Way Mfg Co Airway Hydraulics Div
Cross-Reference Index
Part NumberManufacturer
304-C-8 PRIMARY Hose Connection Inc Div Hose Connections, Inc (USA)
10013B3044 Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service (USA)
Related Parts
4730-00-585-6565INTERCHANGEABLE
CAP,TUBE
5340-01-696-9559INTERCHANGEABLE
CAP,PROTECTIVE,NUT AND BOLT HEA
304-C-8

Frequently Asked Questions

What is NSN 4730-01-644-2686?

NSN 4730-01-644-2686 is a Hydraulic Cap, manufactured by Hose Connection Inc Div Hose Connections, Inc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-644-2686?

NSN 4730-01-644-2686 has 2 cross-referenced part numbers: 304-C-8 (Hose Connection Inc Div Hose Connections, Inc), 10013B3044 (Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service).

What NSN replaces 4730-01-644-2686?

There are 2 known substitutes for 4730-01-644-2686: 4730-00-585-6565, 5340-01-696-9559. Verify interchangeability with system specifications before substitution.

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