PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20330Coupling,pipe

Allegheny Valve Co · NSN 4730-01-254-0953 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-254-0953 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-254-0953. Primary manufacturer part number: 20330.
Features
  • Coupling,pipe — FSC 4730
  • Connection Type: GROOVED COUPLING ALL ENDS
  • Nominal Pipe Size Accommodated: 3.500 INCHES ALL ENDS IN
  • Material: STEEL OVERALL
  • 1 verified cross-reference
  • Primary manufacturer: Allegheny Valve Co
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Coupling,pipe, cataloged under National Stock Number 4730-01-254-0953, 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 Allegheny Valve Co. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-254-0953
Primary Part Number20330
Item NameCoupling,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerAllegheny Valve Co
StatusACTIVE
Connection TypeGROOVED COUPLING ALL ENDS
Nominal Pipe Size Accommodated3.500 INCHES ALL ENDS IN
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5365-00-112-225720330 INTERCHANGEABLE
Spacer,sleeve
Langley Corp
4530-00-394-8521 INTERCHANGEABLE
Door,outer,radial
5330-00-432-36382033 INTERCHANGEABLE
Packing Assembly
Dover Corp Groen Div
5950-00-645-710420330 INTERCHANGEABLE
Transformer,power Autotransforme
Raytheon Company Dba Raytheon
5950-01-023-3085678-0227-010 INTERCHANGEABLE
Reactor
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5950-01-023-923120330 INTERCHANGEABLE
Transformer,pulse
Pulse Engineering Inc
3455-01-025-981919553 INTERCHANGEABLE
Reamer,machine
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
6515-01-110-138220-330 INTERCHANGEABLE
Curette Set,antrum
Integra Lifesciences Corporation
4820-01-128-9218A10067.002.116 INTERCHANGEABLE
Gland,relief Valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
5998-01-248-8597 INTERCHANGEABLE
Extender Card,electronic Test
Cross-Reference Index
Part NumberManufacturer
20330 Allegheny Valve Co (USA)
Related Parts
5365-00-112-2257INTERCHANGEABLE
SPACER,SLEEVE
20330
4530-00-394-8521INTERCHANGEABLE
DOOR,OUTER,RADIAL
5330-00-432-3638INTERCHANGEABLE
PACKING ASSEMBLY
2033
5950-00-645-7104INTERCHANGEABLE
TRANSFORMER,POWER AUTOTRANSFORME
20330
5950-01-023-3085INTERCHANGEABLE
REACTOR
678-0227-010
5950-01-023-9231INTERCHANGEABLE
TRANSFORMER,PULSE
20330
3455-01-025-9819INTERCHANGEABLE
REAMER,MACHINE
19553
6515-01-110-1382INTERCHANGEABLE
CURETTE SET,ANTRUM
20-330
4820-01-128-9218INTERCHANGEABLE
GLAND,RELIEF VALVE
A10067.002.116
5998-01-248-8597INTERCHANGEABLE
EXTENDER CARD,ELECTRONIC TEST
4820-01-521-2221INTERCHANGEABLE
VALVE,SAFETY RELIEF

Frequently Asked Questions

What is NSN 4730-01-254-0953?

NSN 4730-01-254-0953 is a Coupling,pipe, manufactured by Allegheny Valve Co, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-254-0953?

NSN 4730-01-254-0953 has 1 cross-referenced part number: 20330 (Allegheny Valve Co).

What NSN replaces 4730-01-254-0953?

There are 11 known substitutes for 4730-01-254-0953: 5365-00-112-2257, 4530-00-394-8521, 5330-00-432-3638 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20330?

Key specifications for 20330: Connection Type: GROOVED COUPLING ALL ENDS; Nominal Pipe Size Accommodated: 3.500 INCHES ALL ENDS IN; Material: STEEL OVERALL. 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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