PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51306-7Tee,pipe

Drs Environmental Systems Inc · NSN 4730-00-257-2122 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-257-2122 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-257-2122. Primary manufacturer part number: 51306-7.
Features
  • Tee,pipe — FSC 4730
  • 11 verified cross-references
  • Primary manufacturer: Drs Environmental Systems Inc
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Tee,pipe, cataloged under National Stock Number 4730-00-257-2122, 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 Drs Environmental Systems Inc. This item has 11 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameTee,pipe
FSC / FSG4730 — No Item Name Available (FSG 47)
ManufacturersDrs Environmental Systems Inc (CAGE 5RQL2); Grinnell Corp Sub of Tyco Intl Us Inc (CAGE 54578); Keco Industries, Inc. (CAGE 94833); American Society for Testing and Materials Dba Astm International (CAGE 81346); Federal Specifications Promulgated by General Services Administration Washington DC (CAGE 81348)
Technical Specifications
ParameterValue
NSN4730-00-257-2122
Primary Part Number51306-7
Item NameTee,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerDrs Environmental Systems Inc
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5940-00-232-5195 INTERCHANGEABLE
Ferrule,electrical Conductor
5975-00-234-6779BBU50 INTERCHANGEABLE
Bushing,electrical Conduit
Egs Electrical Group Appleton Div
3417-00-766-3076 INTERCHANGEABLE
Milling Machine,profiling
5120-00-788-4819 INTERCHANGEABLE
Screwdriver,torque
3030-00-826-5151A50 INTERCHANGEABLE
Belt,v
Goodrich Corporation
5975-00-962-9884 INTERCHANGEABLE
Bushing,electrical Conduit
3455-01-045-04842-1731-0750 INTERCHANGEABLE
Cutter,milling,end
New York Twist Drill Inc
5975-01-058-3838141AL INTERCHANGEABLE
Locknut,electrical Conduit
Abb Installation Products Inc
6670-01-078-5276 INTERCHANGEABLE
Balance,analytical
5340-01-408-8445A50 INTERCHANGEABLE
Padlock
American Lock Company Dba American Lock
Cross-Reference Index
Part NumberManufacturer
51306-7 Drs Environmental Systems Inc (USA)
1105-1-1/4 Grinnell Corp Sub of Tyco Intl Us Inc (USA)
B-51306 Keco Industries, Inc. (USA)
ASME B16.3 American Society for Testing and Materials Dba Astm International (USA)
WWP521 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
B-51306-7 Drs Environmental Systems Inc (USA)
51306-7 Hdt Expeditionary Systems Inc (USA)
A50 Essex Industries, Inc. Dba Essex Industries (USA)
B-51306-7 Keco Industries, Inc. (USA)
51306-7 Keco Industries, Inc. (USA)
BM11383-98 Demarkus Corp Refrigeration Engineering Corp (USA)
Related Parts
5940-00-232-5195INTERCHANGEABLE
FERRULE,ELECTRICAL CONDUCTOR
5975-00-234-6779INTERCHANGEABLE
BUSHING,ELECTRICAL CONDUIT
BBU50
3417-00-766-3076INTERCHANGEABLE
MILLING MACHINE,PROFILING
5120-00-788-4819INTERCHANGEABLE
SCREWDRIVER,TORQUE
3030-00-826-5151INTERCHANGEABLE
BELT,V
A50
5975-00-962-9884INTERCHANGEABLE
BUSHING,ELECTRICAL CONDUIT
3455-01-045-0484INTERCHANGEABLE
CUTTER,MILLING,END
2-1731-0750
5975-01-058-3838INTERCHANGEABLE
LOCKNUT,ELECTRICAL CONDUIT
141AL
6670-01-078-5276INTERCHANGEABLE
BALANCE,ANALYTICAL
5340-01-408-8445INTERCHANGEABLE
PADLOCK
A50
6750-01-427-4903INTERCHANGEABLE
FILM,PHOTOGRAPHIC
5325-01-467-2135INTERCHANGEABLE
RING,RETAINING
A50

Frequently Asked Questions

What is NSN 4730-00-257-2122?

NSN 4730-00-257-2122 is a Tee,pipe, manufactured by Drs Environmental Systems Inc, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-257-2122?

NSN 4730-00-257-2122 has 11 cross-referenced part numbers: 51306-7 (Drs Environmental Systems Inc), 1105-1-1/4 (Grinnell Corp Sub of Tyco Intl Us Inc), B-51306 (Keco Industries, Inc.), ASME B16.3 (American Society for Testing and Materials Dba Astm International), WWP521 (Federal Specifications Promulgated by General Services Administration Washington DC) and 6 more.

What NSN replaces 4730-00-257-2122?

There are 12 known substitutes for 4730-00-257-2122: 5940-00-232-5195, 5975-00-234-6779, 3417-00-766-3076 and 9 more. Verify interchangeability with system specifications before substitution.

Is NSN 4730-00-257-2122 still in active supply?

NSN 4730-00-257-2122 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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