NSN 2540-01-398-9979 · NIIN 013989979 · Part number R537
W S Darley & Co · FSC 2540 — Vehicular Furniture and Accessories · FSG 25 — Vehicular Equipment Components · CAGE 15852
Government record, cited
NSN 2540-01-398-9979 — this item is cataloged by the U.S. Government under National Stock Number 2540-01-398-9979. Manufacturer of record part number: R537.
Also searched as2540-01-398-9979 ·
2540013989979 ·
NIIN 013989979 ·
01-398-9979 ·
FSC 2540 Vehicular Furniture and Accessories · CAGE 15852 · R537
Material: ALUMINUM ALLOY LOCATION NOT OTHERWISE SPECIFIED
1 manufacturer part number on file
Manufacturer of record: W S Darley & Co
Identification
NSN: 2540-01-398-9979
NIIN: 013989979
FSC: 2540 — Vehicular Furniture and Accessories
FSG: 25 — Vehicular Equipment Components
Primary part number: R537
Manufacturer: W S Darley & Co
General Description
The Chock,wheel-Track, cataloged under National Stock Number 2540-01-398-9979, is classified within Federal Supply Class 2540 (Vehicular Furniture and Accessories) of the Vehicular Equipment Components group. The manufacturer of record is W S Darley & Co. Government technical data includes 1 specification, 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
2540-01-398-9979
Primary Part Number
R537
Item Name
Chock,wheel-Track
FSC / FSG
2540 / 25 — Vehicular Furniture and Accessories
Manufacturer
W S Darley & Co
Status
ACTIVE
Material
ALUMINUM ALLOY LOCATION NOT OTHERWISE SPECIFIED
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 2540-01-398-9979?
NSN 2540-01-398-9979 is a Chock,wheel-Track, manufactured by W S Darley & Co, classified under FSC 2540, Vehicular Furniture and Accessories. Status: active.
What part numbers are listed for NSN 2540-01-398-9979?
NSN 2540-01-398-9979 has 1 manufacturer part number on file: R537 (W S Darley & Co).
What are the specifications of R537?
Key specifications for R537: Material: ALUMINUM ALLOY LOCATION NOT OTHERWISE SPECIFIED. 1 specification is documented in the U.S. Government catalog.
Is NSN 2540-01-398-9979 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.