PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3691-54REVAPC29Nut,tube Coupling

Electric Boat Corporation Div General Dynamics Electric Boat · NSN 4730-00-288-8499 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-288-8499 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-288-8499. Primary manufacturer part number: 3691-54REVAPC29.
Features
  • Nut,tube Coupling — FSC 4730
  • Nominal Tube Outside Diameter: 0.188 INCHES IN
  • Material: COPPER ALLOY OVERALL
  • Nut Style: TUBE COUPLING
  • Thread Quantity Per Inch: 20
  • Fabrication Method: FORGED
  • Width Across Flats: 0.750 INCHES NOMINAL IN
  • Smallest Inside Diameter: 0.192 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Fluid conveyance
  • Hydraulic system plumbing
General Description

The Nut,tube Coupling, cataloged under National Stock Number 4730-00-288-8499, 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 Electric Boat Corporation Div General Dynamics Electric Boat. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 6 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
NSN4730-00-288-8499
Primary Part Number3691-54REVAPC29
Item NameNut,tube Coupling
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerElectric Boat Corporation Div General Dynamics Electric Boat
StatusACTIVE
Nominal Tube Outside Diameter0.188 INCHES IN
MaterialCOPPER ALLOY OVERALL
Nut StyleTUBE COUPLING
Thread Quantity Per Inch20
Fabrication MethodFORGED
Width Across Flats0.750 INCHES NOMINAL IN
Smallest Inside Diameter0.192 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN
Nut Height0.625 INCHES NOMINAL IN
Length to Shoulder0.344 INCHES NOMINAL IN
Thread Class3B
Thread DirectionRIGHT-HAND
Thread SeriesUNS
Seat Angle45.00 DEGREES NOMINAL
Nominal Thread Size0.438 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5330-00-133-346850-32 INTERCHANGEABLE
Packing Assembly
Ortman Fluid Power Quincy Compressor Div Sub of Coltec Industries Inc
5910-00-400-1579C1132 INTERCHANGEABLE
Capacitor,variable,ceramic Diele
Emcore Corporation Div Concord Division
3110-01-213-4370305032-2118 INTERCHANGEABLE
Plate,retaining,bearing
Diamond Power International, Inc.
Cross-Reference Index
Part NumberManufacturer
4-3 010168B Society of Automotive Engineers Inc (USA)
588-516-1854511REVAPC29 Naval Sea Systems Command (USA)
571-9200-1302921REVAPC29 Naval Ship Systems Command (USA)
8691-052REVAPC29 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
3691-54REVAPC29 PRIMARY Electric Boat Corporation Div General Dynamics Electric Boat (USA)
A5132 PRIMARY Mueller Brass Co. (USA)
588-516-1854511REVAPC29 Naval Ship Systems Command (USA)
8591-551REVAPC29 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
586-516-1720482REVAPC29 Naval Sea Systems Command (USA)
586-516-1720482REVAPC29 Naval Ship Systems Command (USA)
571-9200-1302921REVAPC29 Naval Sea Systems Command (USA)
4-3 010168B PRIMARY Sae International Dba Sae International (USA)
Related Parts
5330-00-133-3468INTERCHANGEABLE
PACKING ASSEMBLY
50-32
5910-00-400-1579INTERCHANGEABLE
CAPACITOR,VARIABLE,CERAMIC DIELE
C1132
3110-01-213-4370INTERCHANGEABLE
PLATE,RETAINING,BEARING
305032-2118

Frequently Asked Questions

What is NSN 4730-00-288-8499?

NSN 4730-00-288-8499 is a Nut,tube Coupling, manufactured by Electric Boat Corporation Div General Dynamics Electric Boat, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-288-8499?

NSN 4730-00-288-8499 has 12 cross-referenced part numbers: 4-3 010168B (Society of Automotive Engineers Inc), 588-516-1854511REVAPC29 (Naval Sea Systems Command), 571-9200-1302921REVAPC29 (Naval Ship Systems Command), 8691-052REVAPC29 (Electric Boat Corporation Div General Dynamics Electric Boat), 3691-54REVAPC29 (Electric Boat Corporation Div General Dynamics Electric Boat) and 7 more.

What NSN replaces 4730-00-288-8499?

There are 3 known substitutes for 4730-00-288-8499: 5330-00-133-3468, 5910-00-400-1579, 3110-01-213-4370. Verify interchangeability with system specifications before substitution.

What are the specifications of 3691-54REVAPC29?

Key specifications for 3691-54REVAPC29: Nominal Tube Outside Diameter: 0.188 INCHES IN; Material: COPPER ALLOY OVERALL; Nut Style: TUBE COUPLING; Thread Quantity Per Inch: 20. 14 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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