PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

25812Coupling Assembly,tube,flexible

Senior Operations Llc Dba Metal Bellows Div Metal Bellows · NSN 4730-01-316-0231 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-316-0231 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-316-0231. Primary manufacturer part number: 25812.
Features
  • Coupling Assembly,tube,flexible — FSC 4730
  • Material: STEEL CORROSION RESISTING
  • Outside Diameter: 0.438 INCHES NOMINAL IN
  • 4 verified cross-references
  • Primary manufacturer: Senior Operations Llc Dba Metal Bellows Div Metal Bellows
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Corrosion Resisting construction
General Description

The Coupling Assembly,tube,flexible, cataloged under National Stock Number 4730-01-316-0231, 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 Senior Operations Llc Dba Metal Bellows Div Metal Bellows. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-316-0231
Primary Part Number25812
Item NameCoupling Assembly,tube,flexible
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSenior Operations Llc Dba Metal Bellows Div Metal Bellows
StatusACTIVE
MaterialSTEEL CORROSION RESISTING
Outside Diameter0.438 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6105-00-538-84023045-269 INTERCHANGEABLE
Motor,direct Current
Moog Inc.
1660-00-991-453741509-1 INTERCHANGEABLE
Cover Assy
Honeywell International Inc. Div Aerospace - Torrance
6220-01-385-486041509-1 INTERCHANGEABLE
Panel,indicating,light Transmitt
Fleet Readiness Center East Div Department of Navy
5998-01-442-0708 INTERCHANGEABLE
Circuit Card Assembly
5120-01-542-7829 INTERCHANGEABLE
Wrench,box and Open End,combinat
Cross-Reference Index
Part NumberManufacturer
25812 Senior Flexonics Inc (USA)
25812 PRIMARY Senior Operations Llc Dba Metal Bellows Div Metal Bellows (USA)
41509-1 Datron Systems Inc (USA)
41509-1 Fisica Applied Technologies, Inc. Div Datron Advanced Technologies (USA)
Related Parts
6105-00-538-8402INTERCHANGEABLE
MOTOR,DIRECT CURRENT
3045-269
1660-00-991-4537INTERCHANGEABLE
COVER ASSY
41509-1
6220-01-385-4860INTERCHANGEABLE
PANEL,INDICATING,LIGHT TRANSMITT
41509-1
5998-01-442-0708INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5120-01-542-7829INTERCHANGEABLE
WRENCH,BOX AND OPEN END,COMBINAT

Frequently Asked Questions

What is NSN 4730-01-316-0231?

NSN 4730-01-316-0231 is a Coupling Assembly,tube,flexible, manufactured by Senior Operations Llc Dba Metal Bellows Div Metal Bellows, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-316-0231?

NSN 4730-01-316-0231 has 4 cross-referenced part numbers: 25812 (Senior Flexonics Inc), 25812 (Senior Operations Llc Dba Metal Bellows Div Metal Bellows), 41509-1 (Datron Systems Inc), 41509-1 (Fisica Applied Technologies, Inc. Div Datron Advanced Technologies).

What NSN replaces 4730-01-316-0231?

There are 5 known substitutes for 4730-01-316-0231: 6105-00-538-8402, 1660-00-991-4537, 6220-01-385-4860 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 25812?

Key specifications for 25812: Overall Length: 3.000 INCHES NOMINAL IN; Material: STEEL CORROSION RESISTING; Outside Diameter: 0.438 INCHES NOMINAL IN. 3 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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