NSN 2840-01-497-2103 · NIIN 014972103 · Part number 540-1407-4
Grimes Aerospace Co Bristol Opns · FSC 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components · FSG 28 — Engines, Turbines, and Components · CAGE 077L2
Government record, cited
NSN 2840-01-497-2103 — this item is cataloged by the U.S. Government under National Stock Number 2840-01-497-2103. Manufacturer of record part number: 540-1407-4.
Also searched as2840-01-497-2103 ·
2840014972103 ·
NIIN 014972103 ·
01-497-2103 ·
FSC 2840 Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components · CAGE 077L2 · 540-1407-4 · 2840PL1897631
Nearby stock numbers← 2840-01-497-1371 Vane Assembly, Compressor, Aircraft Gas Turbine Engine
·
2840-01-497-2132 Sump, Oil, Aircraft Gas Turbine En →
Features
Valve,bleed,turbine Engine — FSC 2840
1 manufacturer part number on file
Manufacturer of record: Grimes Aerospace Co Bristol Opns
Identification
NSN: 2840-01-497-2103
NIIN: 014972103
FSC: 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
FSG: 28 — Engines, Turbines, and Components
Primary part number: 540-1407-4
Manufacturer: Grimes Aerospace Co Bristol Opns
General Description
The Valve,bleed,turbine Engine, cataloged under National Stock Number 2840-01-497-2103, is classified within Federal Supply Class 2840 (Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Grimes Aerospace Co Bristol Opns. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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
2840-01-497-2103
Primary Part Number
540-1407-4
Item Name
Valve,bleed,turbine Engine
FSC / FSG
2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
Jednolity Indeks Materialowy - Uniform Material Index
No interchangeability data on file.
Other items in FSC 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2840-00-000-0048
ENGINE,AIRCRAFT,TURBO-SHAFT
2840-00-000-0049
MODIFICATION KIT,ENGINE
2840-00-001-1741
CASE AND NOZZLE ASSEMBLY,TURBINE
2840-00-001-1743
2840-00-001-1743 · Item name not on file
2840-00-001-2117
2840-00-001-2117 · Item name not on file
2840-00-001-2284
2840-00-001-2284 · Item name not on file
2840-00-001-3922
2840-00-001-3922 · Item name not on file
2840-00-001-4903
SEAL,AIR,AIRCRAFT GAS TURBINE EN
Frequently Asked Questions
What is NSN 2840-01-497-2103?
NSN 2840-01-497-2103 is a Valve,bleed,turbine Engine, manufactured by Grimes Aerospace Co Bristol Opns, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
What part numbers are listed for NSN 2840-01-497-2103?
NSN 2840-01-497-2103 has 1 manufacturer part number on file: 540-1407-4 (Grimes Aerospace Co Bristol Opns).
What are the specifications of 540-1407-4?
Key specifications for 540-1407-4: Special Features: BLEED OFF VALVE; End Item Identification: USED ON PRATT AND WHITNEY CANADA PT-6 AIRCRAFT ENGINE. 0 specifications are documented in the U.S. Government catalog.
Is NSN 2840-01-497-2103 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.