PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4809-F-GR2Nut,union

Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa · NSN 4730-00-900-9482 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-900-9482 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-900-9482. Primary manufacturer part number: 4809-F-GR2.
Features
  • Nut,union — 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.
  • 15 verified cross-references
  • Primary manufacturer: Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Nut,union, cataloged under National Stock Number 4730-00-900-9482, 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 Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-900-9482
Primary Part Number4809-F-GR2
Item NameNut,union
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerAtwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa
StatusCANCELLED
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 StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5910-00-134-9677 INTERCHANGEABLE
Capacitor,fixed,electrolytic
5342-00-369-50383566 INTERCHANGEABLE
Clamp,ring
Champion Laboratories, Inc.
4730-00-494-3271 INTERCHANGEABLE
Coupling Half,quick Disconnect
5961-00-835-2584 INTERCHANGEABLE
Transistor
1005-00-915-0905 INTERCHANGEABLE
Tank,dummy Filling
4820-01-053-1574 INTERCHANGEABLE
Head,valve
8540-01-153-7116854000C900186# INTERCHANGEABLE
Tissue Cleaning Ant
Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia
5360-01-196-79563566 INTERCHANGEABLE
Spring,helical,compression
Husco International Inc
5305-01-317-62423566 INTERCHANGEABLE
Screw,wood
Auto Vehicle Parts Co Dba Au-Ve-Co
2510-01-441-64623566 INTERCHANGEABLE
Window,vehicular
Palm Industries Inc
Cross-Reference Index
Part NumberManufacturer
4809-F-GR2 Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa (USA)
3566 1-4IN The Walworth Company (USA)
002042610-41 Naval Inventory Control Point Mechanicsburg (USA)
820-2179130-110 Naval Sea Systems Command (USA)
820-2178667PC1 Naval Ship Systems Command (USA)
820-2179134-4 Naval Sea Systems Command (USA)
820-2178664-3 Naval Ship Systems Command (USA)
3566 The Walworth Company (USA)
3566 1/4IN The Walworth Company (USA)
4809-F-39 Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa (USA)
820-2178667 The Walworth Company (USA)
820-2178667-1 Walworth Co Marine Div (USA)
820-2178667-1 Naval Sea Systems Command (USA)
3566-1/4IN Walworth Co Marine Div (USA)
82-2178741PC52 Naval Sea Systems Command (USA)
Related Parts
5910-00-134-9677INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC
5342-00-369-5038INTERCHANGEABLE
CLAMP,RING
3566
4730-00-494-3271INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
5961-00-835-2584INTERCHANGEABLE
TRANSISTOR
1005-00-915-0905INTERCHANGEABLE
TANK,DUMMY FILLING
4820-01-053-1574INTERCHANGEABLE
HEAD,VALVE
8540-01-153-7116INTERCHANGEABLE
TISSUE CLEANING ANT
854000C900186#
5360-01-196-7956INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
3566
5305-01-317-6242INTERCHANGEABLE
SCREW,WOOD
3566
2510-01-441-6462INTERCHANGEABLE
WINDOW,VEHICULAR
3566
3010-01-467-8332INTERCHANGEABLE
GEAR ASSEMBLY,SPEED DECREASER
B2175-25-C-MQ56
4710-01-526-3333INTERCHANGEABLE
PIPE,METALLIC
3566

Frequently Asked Questions

What is NSN 4730-00-900-9482?

NSN 4730-00-900-9482 is a Nut,union, manufactured by Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-900-9482?

NSN 4730-00-900-9482 has 15 cross-referenced part numbers: 4809-F-GR2 (Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa), 3566 1-4IN (The Walworth Company), 002042610-41 (Naval Inventory Control Point Mechanicsburg), 820-2179130-110 (Naval Sea Systems Command), 820-2178667PC1 (Naval Ship Systems Command) and 10 more.

What NSN replaces 4730-00-900-9482?

There are 12 known substitutes for 4730-00-900-9482: 5910-00-134-9677, 5342-00-369-5038, 4730-00-494-3271 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4809-F-GR2?

Key specifications for 4809-F-GR2: 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.

Is NSN 4730-00-900-9482 still in active supply?

NSN 4730-00-900-9482 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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