PartsTable TECHNICAL DATA SHEET
NSN 2840-01-127-3342Government record, cited

Shaft, Turbine, Aircraft Gas Turbi2840-01-127-3342

NSN 2840-01-127-3342 · NIIN 011273342 · Part number 34977
Williams International Co., L.l.c. · FSC 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components · FSG 28 — Engines, Turbines, and Components · CAGE 24235
Government record, cited
NSN 2840-01-127-3342 — this item is cataloged by the U.S. Government under National Stock Number 2840-01-127-3342. Manufacturer of record part number: 34977.
Also searched as  2840-01-127-3342 · 2840011273342 · NIIN 011273342 · 01-127-3342 · FSC 2840 Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components · CAGE 24235 · 34977
Nearby stock numbers  ·
Features
  • Shaft,turbine,aircraft Gas Turbi — FSC 2840
  • Criticality Code Justification: AGAV
  • Diameter: 1.121 INCHES NOMINAL IN
  • 1 manufacturer part number on file
  • Manufacturer of record: Williams International Co., L.l.c.
Identification
  • NSN: 2840-01-127-3342
  • NIIN: 011273342
  • FSC: 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
  • FSG: 28 — Engines, Turbines, and Components
  • Primary part number: 34977
  • Manufacturer: Williams International Co., L.l.c.
General Description

The Shaft,turbine,aircraft Gas Turbi, cataloged under National Stock Number 2840-01-127-3342, 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 Williams International Co., L.l.c.. Government technical data includes 2 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2840-01-127-3342
Primary Part Number34977
Item NameShaft,turbine,aircraft Gas Turbi
FSC / FSG2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
ManufacturerWilliams International Co., L.l.c.
StatusACTIVE
Criticality Code JustificationAGAV
Diameter1.121 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL D — Destroy Item
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeY
⇄ Related Items 2
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-278-1057A34977 POSSIBLE MATCH
CAP,VALVE
Possible match (shared part number)Circor Aerospace, Inc. Dba Circor Aerospace Inc
3110-01-606-280634977 POSSIBLE MATCH
RETAINER,ROLLER,BEARING
Possible match (shared part number)Markey Machine Llc Div Markey Machine
Cross-Reference Index
Part NumberManufacturer
34977 PRIMARY Williams International Co., L.l.c. (USA)
Reference documents
ReferenceMeaning
34977 5/9 Secondary reference
Teledyne Cae Gainesville Div Div of Teledyne Industries Inc
Related Parts
4820-01-278-1057POSSIBLE MATCH
CAP,VALVE
A34977
3110-01-606-2806POSSIBLE MATCH
RETAINER,ROLLER,BEARING
34977

Frequently Asked Questions

What is NSN 2840-01-127-3342?

NSN 2840-01-127-3342 is a Shaft,turbine,aircraft Gas Turbi, manufactured by Williams International Co., L.l.c., classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.

What part numbers are listed for NSN 2840-01-127-3342?

NSN 2840-01-127-3342 has 1 manufacturer part number on file: 34977 (Williams International Co., L.l.c.).

What NSN replaces 2840-01-127-3342?

2 possible matches (shared part number, not a government interchangeability claim): 4820-01-278-1057, 3110-01-606-2806. Verify interchangeability with system specifications before substitution.

What are the specifications of 34977?

Key specifications for 34977: Criticality Code Justification: AGAV; Diameter: 1.121 INCHES NOMINAL IN; Overall Length: 10.160 INCHES NOMINAL IN; End Item Identification: ACFT ENG F107. 2 specifications are documented in the U.S. Government catalog.

Is NSN 2840-01-127-3342 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 2840-01-127-3342?

NSN 2840-01-127-3342 has DEMIL Code D. 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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