PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3240Nut,tube Coupling

Brinkley Technology Group Llc Dba Hercules Manufacturing · NSN 4730-00-200-0912 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-200-0912 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-200-0912. Primary manufacturer part number: 3240.
Features
  • Nut,tube Coupling — FSC 4730
  • Nominal Thread Size: 0.750 INCHES IN
  • Nominal Thread Size: 0.750 INCHES IN
  • Width Across Flats: 0.875 INCHES NOMINAL IN
  • Material: COPPER ALLOY OVERALL
  • Material: COPPER ALLOY OVERALL
  • Material Document and Classification: QQ-B-626,COMP 21 FED SPEC 1ST MATERIAL RESPONSE OVERALL
  • Thread Series: UNF
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 4730-00-200-0912, 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 Brinkley Technology Group Llc Dba Hercules Manufacturing. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 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
NSN4730-00-200-0912
Primary Part Number3240
Item NameNut,tube Coupling
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerBrinkley Technology Group Llc Dba Hercules Manufacturing
StatusCANCELLED
Nominal Thread Size0.750 INCHES IN
Nominal Thread Size0.750 INCHES IN
Width Across Flats0.875 INCHES NOMINAL IN
MaterialCOPPER ALLOY OVERALL
MaterialCOPPER ALLOY OVERALL
Material Document and ClassificationQQ-B-626,COMP 21 FED SPEC 1ST MATERIAL RESPONSE OVERALL
Thread SeriesUNF
Length to Shoulder0.562 INCHES MINIMUM AND 0.609 INCHES MAXIMUM IN
Seat Angle45.00 DEGREES NOMINAL
Thread SeriesUNF
Thread Quantity Per Inch16
Smallest Inside Diameter0.502 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
Nut Height0.750 INCHES MINIMUM AND 1.078 INCHES MAXIMUM IN
Nut StyleTUBE COUPLING
Nut Height0.750 INCHES MINIMUM AND 1.078 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Width Across Flats0.875 INCHES NOMINAL IN
Seat Angle45.00 DEGREES NOMINAL
Nominal Tube Outside Diameter0.500 INCHES IN
Smallest Inside Diameter0.502 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
Thread Quantity Per Inch16
Nominal Tube Outside Diameter0.500 INCHES IN
Nut StyleTUBE COUPLING
Fabrication MethodMACHINED OR FORGED
Length to Shoulder0.562 INCHES MINIMUM AND 0.609 INCHES MAXIMUM IN
Material Document and ClassificationQQ-B-626,COMP 21 FED SPEC 1ST MATERIAL RESPONSE OVERALL
Thread Class3B
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
2915-00-119-46653240 INTERCHANGEABLE
Cover,fuel Pump
Triumph Engine Control Systems Llc
4730-00-196-14763240 INTERCHANGEABLE
Nipple,pipe
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
2530-00-471-82505459221 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
General Motors Llc Dba General Motors Llc
6145-00-493-1539 INTERCHANGEABLE
Cable,special Purpose,electrical
2815-00-517-98353240 INTERCHANGEABLE
Ring,piston
Kaydon Ring & Seal Inc Dba Skf Precision Technologies
5945-00-665-98913240 INTERCHANGEABLE
Relay,electromagnetic
Micro Computer Consultants Inc Quality Accessories and Instruments Div
5950-00-678-25143240 INTERCHANGEABLE
Transformer,power
Precision Electronics, Inc
1560-00-939-85763240 INTERCHANGEABLE
Seal,shaft
Alternative Surface Grinding Corp.
5915-01-007-7113582R699H01 INTERCHANGEABLE
Filter,band Pass
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5820-01-010-07263240 INTERCHANGEABLE
Resistor Rod-Pad Assembly
Electro-Metrics Corporation Dba Electro-Metrics
Cross-Reference Index
Part NumberManufacturer
2397-A Hercules Engine Co Inc (USA)
3240 Hercules Engine Co Inc (USA)
3240 PRIMARY Brinkley Technology Group Llc Dba Hercules Manufacturing (USA)
Related Parts
2915-00-119-4665INTERCHANGEABLE
COVER,FUEL PUMP
3240
4730-00-196-1476INTERCHANGEABLE
NIPPLE,PIPE
3240
2530-00-471-8250INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
5459221
6145-00-493-1539INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
2815-00-517-9835INTERCHANGEABLE
RING,PISTON
3240
5945-00-665-9891INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
3240
5950-00-678-2514INTERCHANGEABLE
TRANSFORMER,POWER
3240
1560-00-939-8576INTERCHANGEABLE
SEAL,SHAFT
3240
5915-01-007-7113INTERCHANGEABLE
FILTER,BAND PASS
582R699H01
5820-01-010-0726INTERCHANGEABLE
RESISTOR ROD-PAD ASSEMBLY
3240
5120-01-018-8980INTERCHANGEABLE
BIT,SCREWDRIVER
6680-01-080-0194INTERCHANGEABLE
INDICATOR,LIQUID QUANTITY
3240

Frequently Asked Questions

What is NSN 4730-00-200-0912?

NSN 4730-00-200-0912 is a Nut,tube Coupling, manufactured by Brinkley Technology Group Llc Dba Hercules Manufacturing, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-200-0912?

NSN 4730-00-200-0912 has 3 cross-referenced part numbers: 2397-A (Hercules Engine Co Inc), 3240 (Hercules Engine Co Inc), 3240 (Brinkley Technology Group Llc Dba Hercules Manufacturing).

What NSN replaces 4730-00-200-0912?

There are 12 known substitutes for 4730-00-200-0912: 2915-00-119-4665, 4730-00-196-1476, 2530-00-471-8250 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3240?

Key specifications for 3240: Nominal Thread Size: 0.750 INCHES IN; Nominal Thread Size: 0.750 INCHES IN; Width Across Flats: 0.875 INCHES NOMINAL IN; Material: COPPER ALLOY OVERALL. 27 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-200-0912 still in active supply?

NSN 4730-00-200-0912 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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