PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D801-1639Elbow,pipe

Gas Equipment Engineering Corporation, the Dba Geeco · NSN 4730-01-135-2494 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-135-2494 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-135-2494. Primary manufacturer part number: D801-1639.
Features
  • Elbow,pipe — FSC 4730
  • Nominal Thread Size: 0.500 INCHES SECOND END IN
  • Connection Type: THREADED EXTERNAL PIPE SECOND END
  • Connection Style: PLAIN (PIPE) FIRST END
  • Connection Style: PLAIN (PIPE) SECOND END
  • Material: COPPER ALLOY OVERALL
  • Thread Series Designator: NPT ALL ENDS
  • Connection Type: THREADED INTERNAL PIPE FIRST END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy Overall construction
General Description

The Elbow,pipe, cataloged under National Stock Number 4730-01-135-2494, 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 Gas Equipment Engineering Corporation, the Dba Geeco. Government technical data includes 8 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
NSN4730-01-135-2494
Primary Part NumberD801-1639
Item NameElbow,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerGas Equipment Engineering Corporation, the Dba Geeco
StatusACTIVE
Nominal Thread Size0.500 INCHES SECOND END IN
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Connection StylePLAIN (PIPE) FIRST END
Connection StylePLAIN (PIPE) SECOND END
MaterialCOPPER ALLOY OVERALL
Thread Series DesignatorNPT ALL ENDS
Connection TypeTHREADED INTERNAL PIPE FIRST END
Nominal Thread Size0.750 INCHES FIRST END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3655-01-134-6281D801-1621 INTERCHANGEABLE
Scraper Ring Assembly
Gas Equipment Engineering Corporation, the Dba Geeco
4730-01-135-2498128067 INTERCHANGEABLE
Nipple,pipe
Rolls-Royce Solutions America Inc
4730-01-137-8391D791-1652 INTERCHANGEABLE
Bushing,pipe
Gas Equipment Engineering Corporation, the Dba Geeco
Cross-Reference Index
Part NumberManufacturer
D791-1628 Gas Equipment Engineering Corporation, the Dba Geeco (USA)
D801-1639 PRIMARY Gas Equipment Engineering Corporation, the Dba Geeco (USA)
00911987-0128 Joy Mfg Co Air Power Group Michigan City Plant (USA)
Related Parts
3655-01-134-6281INTERCHANGEABLE
SCRAPER RING ASSEMBLY
D801-1621
4730-01-135-2498INTERCHANGEABLE
NIPPLE,PIPE
128067
4730-01-137-8391INTERCHANGEABLE
BUSHING,PIPE
D791-1652

Frequently Asked Questions

What is NSN 4730-01-135-2494?

NSN 4730-01-135-2494 is a Elbow,pipe, manufactured by Gas Equipment Engineering Corporation, the Dba Geeco, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-135-2494?

NSN 4730-01-135-2494 has 3 cross-referenced part numbers: D791-1628 (Gas Equipment Engineering Corporation, the Dba Geeco), D801-1639 (Gas Equipment Engineering Corporation, the Dba Geeco), 00911987-0128 (Joy Mfg Co Air Power Group Michigan City Plant).

What NSN replaces 4730-01-135-2494?

There are 3 known substitutes for 4730-01-135-2494: 3655-01-134-6281, 4730-01-135-2498, 4730-01-137-8391. Verify interchangeability with system specifications before substitution.

What are the specifications of D801-1639?

Key specifications for D801-1639: Nominal Thread Size: 0.500 INCHES SECOND END IN; Connection Type: THREADED EXTERNAL PIPE SECOND END; Connection Style: PLAIN (PIPE) FIRST END; Connection Style: PLAIN (PIPE) SECOND END. 8 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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