NSN 4820-00-216-2297 · NIIN 002162297 · Part number 51A137C56
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 10001
Government record, cited
NSN 4820-00-216-2297 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-216-2297. Manufacturer of record part number: 51A137C56.
Also searched as4820-00-216-2297 ·
4820002162297 ·
NIIN 002162297 ·
00-216-2297 ·
FSC 4820 Valves, Nonpowered · CAGE 10001 · 51A137C56
Manufacturer of record: Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Identification
NSN: 4820-00-216-2297
NIIN: 002162297
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 51A137C56
Manufacturer: Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
General Description
The Poppet, cataloged under National Stock Number 4820-00-216-2297, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-00-216-2297
Primary Part Number
51A137C56
Item Name
Poppet
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA)
No interchangeability data on file.
Other items in FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
VALVE,ROTARY,SELECTOR
4820-00-001-0020
4820-00-001-0020 · Item name not on file
4820-00-001-0021
4820-00-001-0021 · Item name not on file
4820-00-001-0032
4820-00-001-0032 · Item name not on file
4820-00-001-0037
VALVE,SAFETY RELIEF
4820-00-001-0042
4820-00-001-0042 · Item name not on file
4820-00-001-1230
4820-00-001-1230 · Item name not on file
Frequently Asked Questions
What is NSN 4820-00-216-2297?
NSN 4820-00-216-2297 is a Poppet, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-00-216-2297?
NSN 4820-00-216-2297 has 2 manufacturer part numbers on file: 51A137C56 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 51A137C56 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
What are the specifications of 51A137C56?
Key specifications for 51A137C56: Unpackaged Unit Weight: 1.375 POUNDS LBS. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-00-216-2297 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.