NSN 2540-01-721-9307 — this item is cataloged by the U.S. Government under National Stock Number 2540-01-721-9307. Manufacturer of record part number: 460-4738.
Also searched as2540-01-721-9307 ·
2540017219307 ·
NIIN 017219307 ·
01-721-9307 ·
FSC 2540 Vehicular Furniture and Accessories · CAGE 11083 · 460-4738
Manufacturer of record: Caterpillar Inc Div Caterpillar Defense
Identification
NSN: 2540-01-721-9307
NIIN: 017219307
FSC: 2540 — Vehicular Furniture and Accessories
FSG: 25 — Vehicular Equipment Components
Primary part number: 460-4738
Manufacturer: Caterpillar Inc Div Caterpillar Defense
General Description
The Diffuser,air,vehicular Heating a, cataloged under National Stock Number 2540-01-721-9307, is classified within Federal Supply Class 2540 (Vehicular Furniture and Accessories) of the Vehicular Equipment Components group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
2540-01-721-9307
Primary Part Number
460-4738
Item Name
Diffuser,air,vehicular Heating a
FSC / FSG
2540 / 25 — Vehicular Furniture and Accessories
Manufacturer
Caterpillar Inc Div Caterpillar Defense
Status
ACTIVE
Overall Diameter
76.0 MILLIMETERS NOMINAL MM
Color
BLACK
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
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 2540-01-721-9307?
NSN 2540-01-721-9307 is a Diffuser,air,vehicular Heating a, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2540, Vehicular Furniture and Accessories. Status: active.
What part numbers are listed for NSN 2540-01-721-9307?
NSN 2540-01-721-9307 has 1 manufacturer part number on file: 460-4738 (Caterpillar Inc Div Caterpillar Defense).
What are the specifications of 460-4738?
Key specifications for 460-4738: Overall Height: 26.0 MILLIMETERS NOMINAL MM; Overall Diameter: 76.0 MILLIMETERS NOMINAL MM; Color: BLACK; Special Features: FLANGE DIAMETER:87 MM,MATERIAL:HEAVY-DUTY BLACK NYLON,ADJUSTABLE MM. 2 specifications are documented in the U.S. Government catalog.
Is NSN 2540-01-721-9307 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.