PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1381-1/2Tee,pipe

Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy · NSN 4730-00-088-8819 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-088-8819 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-088-8819. Primary manufacturer part number: 1381-1/2.
Features
  • Tee,pipe — FSC 4730
  • Pipe Wall Thickness Designation for Which Designed: SCHEDULE 80 ALL ENDS
  • Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Nondefinitive Spec/std Data: 4 TABLE
  • Specification/standard Data: 80204-B16.11 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Material Document and Classification: ASTM A105,GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Connection Style: SOCKET (PIPE) ALL ENDS
  • Media for Which Designed: WATER-OIL-GAS SINGLE RESPONSE
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Tee,pipe, cataloged under National Stock Number 4730-00-088-8819, 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 Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-088-8819
Primary Part Number1381-1/2
Item NameTee,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerAti Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy
StatusCANCELLED
Pipe Wall Thickness Designation for Which DesignedSCHEDULE 80 ALL ENDS
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nondefinitive Spec/std Data4 TABLE
Specification/standard Data80204-B16.11 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Material Document and ClassificationASTM A105,GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Connection StyleSOCKET (PIPE) ALL ENDS
Media for Which DesignedWATER-OIL-GAS SINGLE RESPONSE
Leg Length1.125 INCHES NOMINAL ALL ENDS IN
Nominal Pipe Size Accommodated0.500 INCHES ALL ENDS IN
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4730-00-088-88051380-1-2 INTERCHANGEABLE
Elbow,pipe
Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy
4730-00-088-88071380 3/4IN INTERCHANGEABLE
Elbow,pipe
Crane Co Div Valve Div
4730-00-088-8812 INTERCHANGEABLE
Elbow,pipe
4730-00-388-8801 INTERCHANGEABLE
Tee,pipe
4730-00-595-3982 INTERCHANGEABLE
Elbow,pipe
5930-00-708-8724 INTERCHANGEABLE
Switch,flow
4730-00-840-87211381-1-2 INTERCHANGEABLE
Tee,pipe
Crane Co Div Valve Div
4730-00-840-87241381-1 1-4IN INTERCHANGEABLE
Tee,pipe
Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy
4730-01-109-2307SW-243 3/4 IN INTERCHANGEABLE
Tee,pipe
Flowserve Inc
3040-01-215-158935500-1188 INTERCHANGEABLE
Shaft,straight
Middleby Marshall Inc Conveyor Ovens and Mixers Div
Cross-Reference Index
Part NumberManufacturer
B16-11-1946 Flagg Stanley G & Co Inc Dba Flagg Brass (USA)
B16-11-1946 Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy (USA)
B16.11 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
1381-1/2 PRIMARY Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy (USA)
SW-243 Flowserve Inc (USA)
B16-11-1946 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
B16-11-1946 Itt Grinnell Corp (USA)
Related Parts
4730-00-088-8805INTERCHANGEABLE
ELBOW,PIPE
1380-1-2
4730-00-088-8807INTERCHANGEABLE
ELBOW,PIPE
1380 3/4IN
4730-00-088-8812INTERCHANGEABLE
ELBOW,PIPE
4730-00-388-8801INTERCHANGEABLE
TEE,PIPE
4730-00-595-3982INTERCHANGEABLE
ELBOW,PIPE
5930-00-708-8724INTERCHANGEABLE
SWITCH,FLOW
4730-00-840-8721INTERCHANGEABLE
TEE,PIPE
1381-1-2
4730-00-840-8724INTERCHANGEABLE
TEE,PIPE
1381-1 1-4IN
4730-01-109-2307INTERCHANGEABLE
TEE,PIPE
SW-243 3/4 IN
3040-01-215-1589INTERCHANGEABLE
SHAFT,STRAIGHT
35500-1188
5310-01-295-6111INTERCHANGEABLE
NUT,PLAIN,HEXAGON
138-112
5805-01-371-7050INTERCHANGEABLE
TELEPHONE SET
50-12

Frequently Asked Questions

What is NSN 4730-00-088-8819?

NSN 4730-00-088-8819 is a Tee,pipe, manufactured by Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-088-8819?

NSN 4730-00-088-8819 has 7 cross-referenced part numbers: B16-11-1946 (Flagg Stanley G & Co Inc Dba Flagg Brass), B16-11-1946 (Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy), B16.11 (American National Standards Institute Incorporated Dba American National Standards Institute), 1381-1/2 (Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy), SW-243 (Flowserve Inc) and 2 more.

What NSN replaces 4730-00-088-8819?

There are 12 known substitutes for 4730-00-088-8819: 4730-00-088-8805, 4730-00-088-8807, 4730-00-088-8812 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1381-1/2?

Key specifications for 1381-1/2: Pipe Wall Thickness Designation for Which Designed: SCHEDULE 80 ALL ENDS; Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Nondefinitive Spec/std Data: 4 TABLE; Specification/standard Data: 80204-B16.11 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-088-8819 still in active supply?

NSN 4730-00-088-8819 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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