NSN 1660-00-907-1789 · NIIN 009071789 · Part number BYLB253
Ge Aviation Systems Llc Dba Ge Aviation Systems Llc · FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories · CAGE 05624
Government record, cited
NSN 1660-00-907-1789 — this item is cataloged by the U.S. Government under National Stock Number 1660-00-907-1789. Manufacturer of record part number: BYLB253.
Also searched as1660-00-907-1789 ·
1660009071789 ·
NIIN 009071789 ·
00-907-1789 ·
FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · CAGE 05624 · BYLB253
General Characteristics Item Description: STAINLESS STEEL,PASSIVATE;3.410 IN. LG;BORE DIA 1.000 IN. AFTER CHROME PLATING IN
1 manufacturer part number on file
Manufacturer of record: Ge Aviation Systems Llc Dba Ge Aviation Systems Llc
Identification
NSN: 1660-00-907-1789
NIIN: 009071789
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories
Primary part number: BYLB253
Manufacturer: Ge Aviation Systems Llc Dba Ge Aviation Systems Llc
General Description
The Body,valve, cataloged under National Stock Number 1660-00-907-1789, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. The manufacturer of record is Ge Aviation Systems Llc Dba Ge Aviation Systems Llc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
1660-00-907-1789
Primary Part Number
BYLB253
Item Name
Body,valve
FSC / FSG
1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
Manufacturer
Ge Aviation Systems Llc Dba Ge Aviation Systems Llc
Status
ACTIVE
General Characteristics Item Description
STAINLESS STEEL,PASSIVATE;3.410 IN. LG;BORE DIA 1.000 IN. AFTER CHROME PLATING IN
Ge Aviation Systems Llc Dba Ge Aviation Systems Llc (USA)
No interchangeability data on file.
Other items in FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1660-00-006-4472
FLANGE,VALVE BODY
1660-00-009-5646
ADAPTER ASSEMBLY,BELLOWS
1660-00-019-8389
1660-00-019-8389 · Item name not on file
1660-00-019-8399
1660-00-019-8399 · Item name not on file
1660-00-031-5285
1660-00-031-5285 · Item name not on file
1660-00-302-4390
PISTON,REGULATING V
1660-00-441-0575
PISTON
1660-01-601-0729
ETHERNET SWITCH
Frequently Asked Questions
What is NSN 1660-00-907-1789?
NSN 1660-00-907-1789 is a Body,valve, manufactured by Ge Aviation Systems Llc Dba Ge Aviation Systems Llc, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
What part numbers are listed for NSN 1660-00-907-1789?
NSN 1660-00-907-1789 has 1 manufacturer part number on file: BYLB253 (Ge Aviation Systems Llc Dba Ge Aviation Systems Llc).
What are the specifications of BYLB253?
Key specifications for BYLB253: General Characteristics Item Description: STAINLESS STEEL,PASSIVATE;3.410 IN. LG;BORE DIA 1.000 IN. AFTER CHROME PLATING IN. 1 specification is documented in the U.S. Government catalog.
Is NSN 1660-00-907-1789 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
What is the DEMIL code for NSN 1660-00-907-1789?
NSN 1660-00-907-1789 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.