NSN 2840-01-038-1209 · NIIN 010381209 · Part number 6887121
Allison Transmission Inc Dba Allison Transmission, Inc · FSC 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components · FSG 28 — Engines, Turbines, and Components · CAGE 73342
Government record, cited
NSN 2840-01-038-1209 — this item is cataloged by the U.S. Government under National Stock Number 2840-01-038-1209. Manufacturer of record part number: 6887121.
Also searched as2840-01-038-1209 ·
2840010381209 ·
NIIN 010381209 ·
01-038-1209 ·
FSC 2840 Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components · CAGE 73342 · 6887121
General Characteristics Item Description: CRES AMS5560,AMS5570 OR AMS5571,0.017 IN. MIN,0.023 IN. MAX WALL THK,0.495 IN. MIN,0.505 IN. MAX OD,3.700 IN. NOM O/A LG,1ST END FLARED 37 DEG PORM 0 DEG 30 MIN,0.646 IN. MIN,0.656 IN. MAX FLARE OD,2ND END 0.493 IN. MIN,0.494 IN. MAX OD FOR 0.400 IN. NOM DISTANCE IN
4 manufacturer part numbers on file
Manufacturer of record: Allison Transmission Inc Dba Allison Transmission, Inc
Identification
NSN: 2840-01-038-1209
NIIN: 010381209
FSC: 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
The Tube,diffuser Vent, cataloged under National Stock Number 2840-01-038-1209, 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 Allison Transmission Inc Dba Allison Transmission, Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 4 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
2840-01-038-1209
Primary Part Number
6887121
Item Name
Tube,diffuser Vent
FSC / FSG
2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
CRES AMS5560,AMS5570 OR AMS5571,0.017 IN. MIN,0.023 IN. MAX WALL THK,0.495 IN. MIN,0.505 IN. MAX OD,3.700 IN. NOM O/A LG,1ST END FLARED 37 DEG PORM 0 DEG 30 MIN,0.646 IN. MIN,0.656 IN. MAX FLARE OD,2ND END 0.493 IN. MIN,0.494 IN. MAX OD FOR 0.400 IN. NOM DISTANCE IN
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.
2840-00-004-4242
2840-00-004-4242 · Item name not on file
2840-00-021-4702
PLATE,RETAINING,TUB
2840-00-043-0981
BRACKET ASSEMBLY,TUBING
2840-00-043-0982
BRACKET ASSEMBLY,TUBING
2840-00-048-5261
2840-00-048-5261 · Item name not on file
2840-00-407-9165
DIPSTICK,ENGINE
2840-01-171-0875
SEAL,FUEL
2840-01-171-0875
SEAL,FUEL
Frequently Asked Questions
What is NSN 2840-01-038-1209?
NSN 2840-01-038-1209 is a Tube,diffuser Vent, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
What part numbers are listed for NSN 2840-01-038-1209?
NSN 2840-01-038-1209 has 4 manufacturer part numbers on file: 6887121 (Boeing Distribution, Inc.), 6887121 (Lakes Region Tubular Products, Inc. Dba Scotia Technology Div Scotia Technology), 6887121 (Allison Transmission Inc Dba Allison Transmission, Inc), 6887121 (Rolls-Royce Corporation).
What are the specifications of 6887121?
Key specifications for 6887121: General Characteristics Item Description: CRES AMS5560,AMS5570 OR AMS5571,0.017 IN. MIN,0.023 IN. MAX WALL THK,0.495 IN. MIN,0.505 IN. MAX OD,3.700 IN. NOM O/A LG,1ST END FLARED 37 DEG PORM 0 DEG 30 MIN,0.646 IN. MIN,0.656 IN. MAX FLARE OD,2ND END 0.493 IN. MIN,0.494 IN. MAX OD FOR 0.400 IN. NOM DISTANCE IN. 1 specification is documented in the U.S. Government catalog.
Is NSN 2840-01-038-1209 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 2840-01-038-1209?
NSN 2840-01-038-1209 has DEMIL Code Q. 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.