NSN 2540-00-442-5899 — this item is cataloged by the U.S. Government under National Stock Number 2540-00-442-5899. Manufacturer of record part number: 1A-11,087.
Also searched as2540-00-442-5899 ·
2540004425899 ·
NIIN 004425899 ·
00-442-5899 ·
FSC 2540 Vehicular Furniture and Accessories · CAGE 51864 · 1A-11,087 · 11641869
General Characteristics Item Description: 2.250 IN. W,4.620 IN. O/A LG IN
2 manufacturer part numbers on file
Manufacturer of record: Barbour Stockwell, Inc. Dba Barbour Stockwell Inc
Identification
NSN: 2540-00-442-5899
NIIN: 004425899
FSC: 2540 — Vehicular Furniture and Accessories
FSG: 25 — Vehicular Equipment Components
Primary part number: 1A-11,087
Manufacturer: Barbour Stockwell, Inc. Dba Barbour Stockwell Inc
General Description
The Adapter Assembly,tachometer, cataloged under National Stock Number 2540-00-442-5899, is classified within Federal Supply Class 2540 (Vehicular Furniture and Accessories) of the Vehicular Equipment Components group. The manufacturer of record is Barbour Stockwell, Inc. Dba Barbour Stockwell Inc. 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. Unit of issue: EA.
Technical Specifications
Parameter
Value
NSN
2540-00-442-5899
Primary Part Number
1A-11,087
Item Name
Adapter Assembly,tachometer
FSC / FSG
2540 / 25 — Vehicular Furniture and Accessories
Manufacturer
Barbour Stockwell, Inc. Dba Barbour Stockwell Inc
Status
ACTIVE
General Characteristics Item Description
2.250 IN. W,4.620 IN. O/A LG IN
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Barbour Stockwell, Inc. Dba Barbour Stockwell Inc (USA)
No interchangeability data on file.
Other items in FSC 2540 — Vehicular Furniture and Accessories
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2540-00-003-8351
BOW,VEHICULAR TOP
2540-00-211-6255
ADAPTER,FLANGE
2540-00-286-9674
MIRROR ASSEMBLY,REARVIEW
2540-00-383-5078
PINTLE ASSEMBLY,TOWING
2540-00-402-8320
PEDAL,CONTROL
2540-00-693-1039
LINK,REPAIR,TIRE CROSS CHAIN
2540-01-221-1441
VENTILATOR,AIR CIRCULATING
2540-01-568-0545
INSULATION,VEHICULAR
Frequently Asked Questions
What is NSN 2540-00-442-5899?
NSN 2540-00-442-5899 is a Adapter Assembly,tachometer, manufactured by Barbour Stockwell, Inc. Dba Barbour Stockwell Inc, classified under FSC 2540, Vehicular Furniture and Accessories. Status: active.
What part numbers are listed for NSN 2540-00-442-5899?
NSN 2540-00-442-5899 has 2 manufacturer part numbers on file: 11641869 (U S Army Tank Automotive Command Amsta-Im-Mm), 1A-11,087 (Barbour Stockwell, Inc. Dba Barbour Stockwell Inc).
What are the specifications of 1A-11,087?
Key specifications for 1A-11,087: General Characteristics Item Description: 2.250 IN. W,4.620 IN. O/A LG IN. 1 specification is documented in the U.S. Government catalog.
Is NSN 2540-00-442-5899 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). 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.