Cap Type for Which Filler Opening Is Designed: THREADED
Outside Length: 0.350 INCHES NOMINAL IN
Line Connection Opening Quantity: 2
Identification
NSN: 2540-01-453-7666
NIIN: 014537666
FSC: 2540 — Vehicular Furniture and Accessories
FSG: 25 — Vehicular Equipment Components
General Description
The Tank,fuel,vehicular Heater, cataloged under National Stock Number 2540-01-453-7666, is classified within Federal Supply Class 2540 (Vehicular Furniture and Accessories) of the Vehicular Equipment Components group. Government technical data includes 22 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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
2540-01-453-7666
Item Name
Tank,fuel,vehicular Heater
FSC / FSG
2540 / 25 — Vehicular Furniture and Accessories
Status
ACTIVE
Filler Cap
NOT INCLUDED
Filler Neck
INCLUDED
Line Connection Opening Location
SIDE
Length
7.950 INCHES NOMINAL IN
Cap Type for Which Filler Opening Is Designed
THREADED
Outside Length
0.350 INCHES NOMINAL IN
Line Connection Opening Quantity
2
Mounting Bracket Location
SIDE
Shape
RECTANGULAR
Outside Diameter
0.545 INCHES NOMINAL IN
Line Opening Connection Method
PLAIN FACE FLANGE
Thread Direction
RIGHT-HAND
Tank Capacity
0.250 GALLON, US MEASURE
Height
1.635 INCHES NOMINAL IN
Mounting Bracket
PROVIDED
Opening Connection Size
1 3/64 INCH OUTSIDE DIAMETER IN
Thread Size
1 1/16-16
Screw Thread Series Designator
UNF
Width
4.875 INCHES NOMINAL IN
Drain Opening
NOT INCLUDED
Material
STEEL
Fabrication Method
WELDED
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Criticality Code
X
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
160096-3-1
3/2Design control — primary reference
U.S. Government activity
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.
2540-00-001-2045
2540-00-001-2045 · Item name not on file
2540-00-001-3392
2540-00-001-3392 · Item name not on file
2540-00-001-3467
2540-00-001-3467 · Item name not on file
2540-00-001-3534
2540-00-001-3534 · Item name not on file
2540-00-001-3535
2540-00-001-3535 · Item name not on file
2540-00-001-3536
2540-00-001-3536 · Item name not on file
2540-00-001-3537
BRACKET,HEADLIGHT,MOUNTING
2540-00-001-3538
BRACKET,HEADLIGHT,MOUNTING
Related Parts in Vehicular Equipment Components
2540-00-001-2045
2540-00-001-2045 · Item name not on file
2540-00-001-3392
2540-00-001-3392 · Item name not on file
2540-00-001-3467
2540-00-001-3467 · Item name not on file
2540-00-001-3534
2540-00-001-3534 · Item name not on file
2540-00-001-3535
2540-00-001-3535 · Item name not on file
2540-00-001-3536
2540-00-001-3536 · Item name not on file
2540-00-001-3537
BRACKET,HEADLIGHT,MOUNTING
11588889
2540-00-001-3538
BRACKET,HEADLIGHT,MOUNTING
11588891
Frequently Asked Questions
What is NSN 2540-01-453-7666?
NSN 2540-01-453-7666 is a Tank,fuel,vehicular Heater, classified under FSC 2540, Vehicular Furniture and Accessories. Status: active.
What are the specifications of 2540-01-453-7666?
Key specifications for 2540-01-453-7666: Filler Cap: NOT INCLUDED; Filler Neck: INCLUDED; Line Connection Opening Location: SIDE; Length: 7.950 INCHES NOMINAL IN. 22 specifications are documented in the U.S. Government catalog.
Is NSN 2540-01-453-7666 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.