PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21240Manifold,air Line

Desco Corporation · NSN 4730-00-142-1073 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-142-1073 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-142-1073. Primary manufacturer part number: 21240.
Features
  • Manifold,air Line — FSC 4730
  • Inlet Valve: NOT PROVIDED
  • Material: COPPER ALLOY
  • Outlet Valve: PROVIDED
  • Nondefinitive Spec/std Data: 3 PIECE AND 5 PHYSICAL CONDITION AND 6 PHYSICAL CONDITION AND 7 PHYSICAL CONDITION AND 9 PHYSICAL CONDITION AND 10 PHYSICAL CONDITION AND 11 PHYSICAL CONDITION
  • FSC Application Data: U/W DIVING EQUIPMENT
  • Inlet Connection Quantity: 1
  • Outlet Connection Quantity: 3
Applications
  • Applications requiring Copper Alloy construction
General Description

The Manifold,air Line, cataloged under National Stock Number 4730-00-142-1073, 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 Desco Corporation. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-142-1073
Primary Part Number21240
Item NameManifold,air Line
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerDesco Corporation
StatusCANCELLED
Inlet ValveNOT PROVIDED
MaterialCOPPER ALLOY
Outlet ValvePROVIDED
Nondefinitive Spec/std Data3 PIECE AND 5 PHYSICAL CONDITION AND 6 PHYSICAL CONDITION AND 7 PHYSICAL CONDITION AND 9 PHYSICAL CONDITION AND 10 PHYSICAL CONDITION AND 11 PHYSICAL CONDITION
FSC Application DataU/W DIVING EQUIPMENT
Inlet Connection Quantity1
Outlet Connection Quantity3
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5110-00-260-1671 INTERCHANGEABLE
Reamer,hand
4520-00-487-9457 INTERCHANGEABLE
Heating Element,electrical,nonim
5940-00-983-6062 INTERCHANGEABLE
Terminal Board
5998-01-097-850221240 INTERCHANGEABLE
Circuit Card Assembly
Smiths Aerospace, Inc., Electronic Systems-Grand Rapids
5998-01-120-792921240 INTERCHANGEABLE
Electronic Components Assembly
Smiths Aerospace, Inc., Electronic Systems-Grand Rapids
5130-01-133-0461 INTERCHANGEABLE
Socket,socket Wrench
5330-01-207-9391N2124067 INTERCHANGEABLE
Gasket
Leslie Controls, Inc. Dba Leslie Controls Inc
5980-01-431-218221240 INTERCHANGEABLE
Display,optoelectronic
Giga-Tronics Incorporated Dba Giga-Tronics
6810-01-449-5390 INTERCHANGEABLE
Calcium Silicide
Cross-Reference Index
Part NumberManufacturer
21240 PRIMARY Desco Corporation (USA)
S9400-921906PC3-6-7-9T011 Naval Ship Systems Command (USA)
244942PC3-5-6-8-12-13 PRIMARY Naval Sea Systems Command (USA)
S9400-021906PC3-6-7-9T011 PRIMARY Naval Sea Systems Command (USA)
244942PC3-5-6-8-12-13 Naval Ship Systems Command (USA)
Related Parts
5110-00-260-1671INTERCHANGEABLE
REAMER,HAND
4520-00-487-9457INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
5940-00-983-6062INTERCHANGEABLE
TERMINAL BOARD
5998-01-097-8502INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
21240
5998-01-120-7929INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
21240
5130-01-133-0461INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5330-01-207-9391INTERCHANGEABLE
GASKET
N2124067
5980-01-431-2182INTERCHANGEABLE
DISPLAY,OPTOELECTRONIC
21240
6810-01-449-5390INTERCHANGEABLE
CALCIUM SILICIDE

Frequently Asked Questions

What is NSN 4730-00-142-1073?

NSN 4730-00-142-1073 is a Manifold,air Line, manufactured by Desco Corporation, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-142-1073?

NSN 4730-00-142-1073 has 5 cross-referenced part numbers: 21240 (Desco Corporation), S9400-921906PC3-6-7-9T011 (Naval Ship Systems Command), 244942PC3-5-6-8-12-13 (Naval Sea Systems Command), S9400-021906PC3-6-7-9T011 (Naval Sea Systems Command), 244942PC3-5-6-8-12-13 (Naval Ship Systems Command).

What NSN replaces 4730-00-142-1073?

There are 9 known substitutes for 4730-00-142-1073: 5110-00-260-1671, 4520-00-487-9457, 5940-00-983-6062 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21240?

Key specifications for 21240: Inlet Valve: NOT PROVIDED; Material: COPPER ALLOY; Outlet Valve: PROVIDED; Nondefinitive Spec/std Data: 3 PIECE AND 5 PHYSICAL CONDITION AND 6 PHYSICAL CONDITION AND 7 PHYSICAL CONDITION AND 9 PHYSICAL CONDITION AND 10 PHYSICAL CONDITION AND 11 PHYSICAL CONDITION. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-142-1073 still in active supply?

NSN 4730-00-142-1073 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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