Support, Seal, Aircraft Gas Turbin2840-01-477-9401

NSN 2840-01-477-9401 · NIIN 014779401

FSC 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components · FSG 28 — Engines, Turbines, and Components

Government record, cited

Also searched as 2840-01-477-9401 · 2840014779401 · NIIN 014779401 · 01-477-9401 · FSC 2840 Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components

Nearby stock numbers ← 2840-01-477-9257 Frame, Turbine, Aircraft Gas Turbi · 2840-01-477-9577 Blade, Compressor, Aircraft Gas Tu →

Features

Support,seal,aircraft Gas Turbin — FSC 2840
Outside Diameter: 6.870 INCHES MINIMUM AND 6.890 INCHES MAXIMUM IN
Inside Diameter: 6.360 INCHES MINIMUM AND 6.380 INCHES MAXIMUM IN
Material: NICKEL ALLOY

Identification

NSN: 2840-01-477-9401
NIIN: 014779401
FSC: 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
FSG: 28 — Engines, Turbines, and Components

General Description

The Support,seal,aircraft Gas Turbin, cataloged under National Stock Number 2840-01-477-9401, is classified within Federal Supply Class 2840 (Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components) of the Engines, Turbines, and Components group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	2840-01-477-9401
Item Name	Support,seal,aircraft Gas Turbin
FSC / FSG	2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
Status	ACTIVE
Outside Diameter	6.870 INCHES MINIMUM AND 6.890 INCHES MAXIMUM IN
Inside Diameter	6.360 INCHES MINIMUM AND 6.380 INCHES MAXIMUM IN
Material	NICKEL ALLOY

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL B — Remove Demilitarization Key Points
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
2-121-214-06	3/2 Design control — primary reference U.S. Government activity

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 2840-01-477-9401?

NSN 2840-01-477-9401 is a Support,seal,aircraft Gas Turbin, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.

What are the specifications of 2840-01-477-9401?

Key specifications for 2840-01-477-9401: Overall Length: 0.770 INCHES MINIMUM AND 0.790 INCHES MAXIMUM IN; Outside Diameter: 6.870 INCHES MINIMUM AND 6.890 INCHES MAXIMUM IN; Inside Diameter: 6.360 INCHES MINIMUM AND 6.380 INCHES MAXIMUM IN; Special Features: NO MOUNTING HOLE. 3 specifications are documented in the U.S. Government catalog.

Is NSN 2840-01-477-9401 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 2840-01-477-9401?

NSN 2840-01-477-9401 has DEMIL Code B. 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.

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