Also searched as1720-01-299-7173 ·
1720012997173 ·
NIIN 012997173 ·
01-299-7173 ·
FSC 1720 Aircraft Launching Equipment
Nearby stock numbers← 1720-01-299-7172 Enclosure, Power Supply
·
1720-01-299-7174 Valve Assembly, Pilot →
Features
Piston,directional Valve Operato — FSC 1720
FSC Application Data: ROTARY RETRACTION ENGINE
General Characteristics Item Description: 5.720 IN. DIA; 5.000 IN. L; STEEL A1S1 8620 IN
Identification
NSN: 1720-01-299-7173
NIIN: 012997173
FSC: 1720 — Aircraft Launching Equipment
FSG: 17 — Aircraft Launch, Landing, and Ground Handling Equipment
General Description
The Piston,directional Valve Operato, cataloged under National Stock Number 1720-01-299-7173, is classified within Federal Supply Class 1720 (Aircraft Launching Equipment) of the Aircraft Launch, Landing, and Ground Handling Equipment group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
1720-01-299-7173
Item Name
Piston,directional Valve Operato
FSC / FSG
1720 / 17 — Aircraft Launching Equipment
Status
ACTIVE
FSC Application Data
ROTARY RETRACTION ENGINE
General Characteristics Item Description
5.720 IN. DIA; 5.000 IN. L; STEEL A1S1 8620 IN
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
514512-1
3/2Design control — primary reference
U.S. Government activity
No interchangeability data on file.
Other items in FSC 1720 — Aircraft Launching Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1720-00-001-4571
CAM,CUTOFF
1720-00-001-4572
CAM,VALVE
1720-00-001-4573
CROSSOVER BLOCK
1720-00-003-0437
1720-00-003-0437 · Item name not on file
1720-00-003-0438
1720-00-003-0438 · Item name not on file
1720-00-003-0439
1720-00-003-0439 · Item name not on file
1720-00-003-1503
NEEDLE-CUSHION
1720-00-003-6410
1720-00-003-6410 · Item name not on file
Frequently Asked Questions
What is NSN 1720-01-299-7173?
NSN 1720-01-299-7173 is a Piston,directional Valve Operato, classified under FSC 1720, Aircraft Launching Equipment. Status: active.
What are the specifications of 1720-01-299-7173?
Key specifications for 1720-01-299-7173: FSC Application Data: ROTARY RETRACTION ENGINE; General Characteristics Item Description: 5.720 IN. DIA; 5.000 IN. L; STEEL A1S1 8620 IN; End Item Identification: LOW PRESSURE CATAPULT. 2 specifications are documented in the U.S. Government catalog.
Is NSN 1720-01-299-7173 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.
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.