PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

201580Fitting

Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic · NSN 4730-01-253-3940 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-253-3940 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-253-3940. Primary manufacturer part number: 201580.
Features
  • Fitting — FSC 4730
  • 3 verified cross-references
  • Primary manufacturer: Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
Applications
  • Plumbing and fluid distribution
  • Industrial piping systems
  • Fuel and lubricant distribution
General Description

The Fitting, cataloged under National Stock Number 4730-01-253-3940, 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 Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameFitting
FSC / FSG4730 — No Item Name Available (FSG 47)
ManufacturersTwin Disc International S a (CAGE K2171); Marine & Industrial Transmissions Ltd (CAGE U2621); Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (CAGE 61208)
Technical Specifications
ParameterValue
NSN4730-01-253-3940
Primary Part Number201580
Item NameFitting
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerTwin Disc, Incorporated Dba Twin Disc Mid-Atlantic
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5331-00-928-6980MS28775-456 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
2840-01-146-74819340M15P05 INTERCHANGEABLE
Seal,metallic,aircraft Gas Turbi
General Electric Company
1680-01-152-4283 INTERCHANGEABLE
Fitting,lap Belt
2590-01-172-0496201580 INTERCHANGEABLE
Cap,filler Opening
Koehring Cranes, Inc Dba Terex Cranes Div Waverly Operations
5340-01-614-7881201580 INTERCHANGEABLE
Hinge,butt
Sea-Dog Line Div of Sneve-Nysether Inc
Cross-Reference Index
Part NumberManufacturer
201580 Twin Disc International S a (GBR)
201580 Marine & Industrial Transmissions Ltd (GBR)
201580 PRIMARY Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA)
Related Parts
5331-00-928-6980INTERCHANGEABLE
O-RING
MS28775-456
2840-01-146-7481INTERCHANGEABLE
SEAL,METALLIC,AIRCRAFT GAS TURBI
9340M15P05
1680-01-152-4283INTERCHANGEABLE
FITTING,LAP BELT
2590-01-172-0496INTERCHANGEABLE
CAP,FILLER OPENING
201580
5340-01-614-7881INTERCHANGEABLE
HINGE,BUTT
201580

Frequently Asked Questions

What is NSN 4730-01-253-3940?

NSN 4730-01-253-3940 is a Fitting, manufactured by Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-253-3940?

NSN 4730-01-253-3940 has 3 cross-referenced part numbers: 201580 (Twin Disc International S a), 201580 (Marine & Industrial Transmissions Ltd), 201580 (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic).

What NSN replaces 4730-01-253-3940?

There are 5 known substitutes for 4730-01-253-3940: 5331-00-928-6980, 2840-01-146-7481, 1680-01-152-4283 and 2 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com