NSN 2540-01-657-9890 — this item is cataloged by the U.S. Government under National Stock Number 2540-01-657-9890. Manufacturer of record part number: ISO792.
Also searched as2540-01-657-9890 ·
2540016579890 ·
NIIN 016579890 ·
01-657-9890 ·
FSC 2540 Vehicular Furniture and Accessories · CAGE 55242 · ISO792
The Cover,ventilatory, cataloged under National Stock Number 2540-01-657-9890, is classified within Federal Supply Class 2540 (Vehicular Furniture and Accessories) of the Vehicular Equipment Components group. The manufacturer of record is Isometrics Inc. Government technical data includes 3 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. Unit of issue: EA.
Technical Specifications
Parameter
Value
NSN
2540-01-657-9890
Primary Part Number
ISO792
Item Name
Cover,ventilatory
FSC / FSG
2540 / 25 — Vehicular Furniture and Accessories
Manufacturer
Isometrics Inc
Status
ACTIVE
Overall Thickness
0.25 INCHES NOMINAL IN
Shape
RECTANGULAR
Material
STEEL
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.
2540-00-001-2045
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
Frequently Asked Questions
What is NSN 2540-01-657-9890?
NSN 2540-01-657-9890 is a Cover,ventilatory, manufactured by Isometrics Inc, classified under FSC 2540, Vehicular Furniture and Accessories. Status: active.
What part numbers are listed for NSN 2540-01-657-9890?
NSN 2540-01-657-9890 has 1 manufacturer part number on file: ISO792 (Isometrics Inc).
What are the specifications of ISO792?
Key specifications for ISO792: Overall Thickness: 0.25 INCHES NOMINAL IN; Shape: RECTANGULAR; Overall Length: 8.0 INCHES NOMINAL IN; Overall Width: 2.0 INCHES NOMINAL IN. 3 specifications are documented in the U.S. Government catalog.
Is NSN 2540-01-657-9890 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.