PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1548Fitting,bleeder

Hydronic Corp · NSN 4730-01-123-1640 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-123-1640 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-123-1640. Primary manufacturer part number: 1548.
Features
  • Fitting,bleeder — FSC 4730
  • General Characteristics Item Description: STEEL; O/A LG 1.250 IN.; 0.375 IN. DIA; THREADED MIDDLE,ENDS BEVELED,W/HOLE IN ONE END IN
  • 1 verified cross-reference
  • Primary manufacturer: Hydronic Corp
Applications
  • Plumbing and fluid distribution
  • Industrial piping systems
  • Fuel and lubricant distribution
General Description

The Fitting,bleeder, cataloged under National Stock Number 4730-01-123-1640, 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 Hydronic Corp. Government technical data includes 1 verified specification, 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-123-1640
Primary Part Number1548
Item NameFitting,bleeder
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerHydronic Corp
StatusACTIVE
General Characteristics Item DescriptionSTEEL; O/A LG 1.250 IN.; 0.375 IN. DIA; THREADED MIDDLE,ENDS BEVELED,W/HOLE IN ONE END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
2940-00-355-211551548 INTERCHANGEABLE
Filter Element,fluid
Wix Corp
5365-00-406-7793 INTERCHANGEABLE
Spacer
5330-00-416-6216 INTERCHANGEABLE
Gasket
5330-00-464-7346154-8 INTERCHANGEABLE
Packing,preformed
Ldi Industries, Inc. Dba Ldi Industries Inc
5305-00-590-71311548 INTERCHANGEABLE
Screw,machine
Danfoss Power Solutions II, Llc
5910-00-666-044615-48 INTERCHANGEABLE
Capacitor,fixed,mica Dielectric
Keysight Technologies Inc
5975-01-009-56171548 INTERCHANGEABLE
Entrance Cap,electrical
Abb Installation Products Inc
5360-01-038-5846L22057P01 INTERCHANGEABLE
Spring
General Electric Company
5940-01-079-1647M7928/5-3 INTERCHANGEABLE
Splice,conductor
Sae International Dba Sae International
5330-01-126-091577000-0004 INTERCHANGEABLE
Gasket
Nikkiso Pumps America, Inc
Cross-Reference Index
Part NumberManufacturer
1548 Hydronic Corp (USA)
Related Parts
2940-00-355-2115INTERCHANGEABLE
FILTER ELEMENT,FLUID
51548
5365-00-406-7793INTERCHANGEABLE
SPACER
5330-00-416-6216INTERCHANGEABLE
GASKET
5330-00-464-7346INTERCHANGEABLE
PACKING,PREFORMED
154-8
5305-00-590-7131INTERCHANGEABLE
SCREW,MACHINE
1548
5910-00-666-0446INTERCHANGEABLE
CAPACITOR,FIXED,MICA DIELECTRIC
15-48
5975-01-009-5617INTERCHANGEABLE
ENTRANCE CAP,ELECTRICAL
1548
5360-01-038-5846INTERCHANGEABLE
SPRING
L22057P01
5940-01-079-1647INTERCHANGEABLE
SPLICE,CONDUCTOR
M7928/5-3
5330-01-126-0915INTERCHANGEABLE
GASKET
77000-0004
6550-01-283-7958INTERCHANGEABLE
CONTROL,RH NEGATIVE SERUM
715480
5342-01-359-0199INTERCHANGEABLE
MOUNT,RESILIENT,WEAPON SYSTEM
1548

Frequently Asked Questions

What is NSN 4730-01-123-1640?

NSN 4730-01-123-1640 is a Fitting,bleeder, manufactured by Hydronic Corp, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-123-1640?

NSN 4730-01-123-1640 has 1 cross-referenced part number: 1548 (Hydronic Corp).

What NSN replaces 4730-01-123-1640?

There are 12 known substitutes for 4730-01-123-1640: 2940-00-355-2115, 5365-00-406-7793, 5330-00-416-6216 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1548?

Key specifications for 1548: General Characteristics Item Description: STEEL; O/A LG 1.250 IN.; 0.375 IN. DIA; THREADED MIDDLE,ENDS BEVELED,W/HOLE IN ONE END IN. 1 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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