PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A758RPlug,self Closing

Eaton Aerospace Llc Div Fluid and Electrical Distribution Division · NSN 4730-00-288-4121 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-288-4121 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-288-4121. Primary manufacturer part number: A758R.
Features
  • Plug,self Closing — FSC 4730
  • 3 verified cross-references
  • Primary manufacturer: Eaton Aerospace Llc Div Fluid and Electrical Distribution Division
Applications
  • Plumbing and fluid distribution
  • Industrial piping systems
  • Fuel and lubricant distribution
General Description

The Plug,self Closing, cataloged under National Stock Number 4730-00-288-4121, 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 Eaton Aerospace Llc Div Fluid and Electrical Distribution Division. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-288-4121
Primary Part NumberA758R
Item NamePlug,self Closing
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerEaton Aerospace Llc Div Fluid and Electrical Distribution Division
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4320-00-353-588469035C91 INTERCHANGEABLE
Pump,rotary
Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
4730-00-673-1812 INTERCHANGEABLE
Coupling Half,quick Disconnect
4140-01-505-754156251 INTERCHANGEABLE
Blower Unit
Electro Impulse Laboratory Inc Dba Electro Impulse Inc
Cross-Reference Index
Part NumberManufacturer
56251 Hamilton Sundstrand Corporation (USA)
56251 Aero Precision Industries Llc (USA)
A758R PRIMARY Eaton Aerospace Llc Div Fluid and Electrical Distribution Division (USA)
Related Parts
4320-00-353-5884INTERCHANGEABLE
PUMP,ROTARY
69035C91
4730-00-673-1812INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4140-01-505-7541INTERCHANGEABLE
BLOWER UNIT
56251

Frequently Asked Questions

What is NSN 4730-00-288-4121?

NSN 4730-00-288-4121 is a Plug,self Closing, manufactured by Eaton Aerospace Llc Div Fluid and Electrical Distribution Division, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-288-4121?

NSN 4730-00-288-4121 has 3 cross-referenced part numbers: 56251 (Hamilton Sundstrand Corporation), 56251 (Aero Precision Industries Llc), A758R (Eaton Aerospace Llc Div Fluid and Electrical Distribution Division).

What NSN replaces 4730-00-288-4121?

There are 3 known substitutes for 4730-00-288-4121: 4320-00-353-5884, 4730-00-673-1812, 4140-01-505-7541. Verify interchangeability with system specifications before substitution.

What are the specifications of A758R?

Key specifications for A758R: End Item Identification: ACFT MODEL NO.F15. 1 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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