PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1 1/4-3000Union,pipe

Alloy Stainless Products Co Inc · NSN 4730-01-303-1238 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-303-1238 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-303-1238. Primary manufacturer part number: 1 1/4-3000.
Features
  • Union,pipe — FSC 4730
  • Material: STEEL COMP 316F OVERALL
  • Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Style Designator: THREADED
  • Nominal Overall Length: 2.880 INCHES IN
  • Nominal Thread Size: 1.250 INCHES ALL ENDS IN
  • Thread Series Designator: NPT ALL ENDS
  • Connection Style: PLAIN (PIPE) ALL ENDS
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Comp 316f Overall construction
General Description

The Union,pipe, cataloged under National Stock Number 4730-01-303-1238, 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 Alloy Stainless Products Co Inc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-303-1238
Primary Part Number1 1/4-3000
Item NameUnion,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerAlloy Stainless Products Co Inc
StatusACTIVE
MaterialSTEEL COMP 316F OVERALL
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Style DesignatorTHREADED
Nominal Overall Length2.880 INCHES IN
Nominal Thread Size1.250 INCHES ALL ENDS IN
Thread Series DesignatorNPT ALL ENDS
Connection StylePLAIN (PIPE) ALL ENDS
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Seat TypeGROUND-JOINT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
2520-00-763-640203086698 INTERCHANGEABLE
Parts Kit,universal Joint
Rockford Powertrain Inc Div Powertrain Rockford, Inc.
4730-01-303-12451-3000 INTERCHANGEABLE
Coupling,pipe
Alloy Stainless Products Co Inc
4720-01-610-19861143000 INTERCHANGEABLE
Hose Assembly,nonmetallic
Stark Manufacturing Llc
Cross-Reference Index
Part NumberManufacturer
1 1/4-3000 PRIMARY Alloy Stainless Products Co Inc (USA)
13221E8323 Cecom Lr Center (USA)
13221E8323-6 Cecom Lr Center (USA)
Related Parts
2520-00-763-6402INTERCHANGEABLE
PARTS KIT,UNIVERSAL JOINT
03086698
4730-01-303-1245INTERCHANGEABLE
COUPLING,PIPE
1-3000
4720-01-610-1986INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
1143000

Frequently Asked Questions

What is NSN 4730-01-303-1238?

NSN 4730-01-303-1238 is a Union,pipe, manufactured by Alloy Stainless Products Co Inc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-303-1238?

NSN 4730-01-303-1238 has 3 cross-referenced part numbers: 1 1/4-3000 (Alloy Stainless Products Co Inc), 13221E8323 (Cecom Lr Center), 13221E8323-6 (Cecom Lr Center).

What NSN replaces 4730-01-303-1238?

There are 3 known substitutes for 4730-01-303-1238: 2520-00-763-6402, 4730-01-303-1245, 4720-01-610-1986. Verify interchangeability with system specifications before substitution.

What are the specifications of 1 1/4-3000?

Key specifications for 1 1/4-3000: Material: STEEL COMP 316F OVERALL; Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Style Designator: THREADED; Nominal Overall Length: 2.880 INCHES IN. 9 total characteristics are documented in the Federal Logistics Information System.

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