PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11638Cushion,seat,vehicular

Calhoun Mfg Co · NSN 2540-00-354-8752 · FSC 2540 · No Item Name Available
Verified by PartsTable
NSN 2540-00-354-8752 — this item is cataloged by the U.S. Government under National Stock Number 2540-00-354-8752. Primary manufacturer part number: 11638.
Features
  • Cushion,seat,vehicular — FSC 2540
  • Material: COTTON COVER
  • Color: BLACK
  • Spring: INCLUDED
  • Spring Type: COIL
  • Material: WOOD FRAME
  • Material: COTTON PADDING
  • Overall Thickness: 6.500 INCHES NOMINAL IN
Applications
  • Applications requiring Cotton Cover construction
General Description

The Cushion,seat,vehicular, cataloged under National Stock Number 2540-00-354-8752, is classified within Federal Supply Class 2540 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Calhoun Mfg Co. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2540-00-354-8752
Primary Part Number11638
Item NameCushion,seat,vehicular
FSC / FSG2540 / 25 — No Item Name Available
ManufacturerCalhoun Mfg Co
StatusACTIVE
MaterialCOTTON COVER
ColorBLACK
SpringINCLUDED
Spring TypeCOIL
MaterialWOOD FRAME
MaterialCOTTON PADDING
Overall Thickness6.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
9540-00-145-5815 INTERCHANGEABLE
Angle,structural
5940-00-177-79391163-3-8 INTERCHANGEABLE
Terminal,lug
Raytheon Company Dba Raytheon
5945-00-430-357620-050-5 INTERCHANGEABLE
Relay,under Frequency
Te Connectivity Corporation
5136-00-528-229854761 INTERCHANGEABLE
Tap,thread Cutting
Tapco Cutting Tools Inc
5930-00-868-3022 INTERCHANGEABLE
Switch,toggle
4730-01-008-964411638 INTERCHANGEABLE
Restrictor,fluid Flow
Elbitamerica, Inc.
5962-01-048-6860LM117KSTEEL/883B INTERCHANGEABLE
Microcircuit,linear
National Semiconductor Corporation
5950-01-090-5612 INTERCHANGEABLE
Transformer,pulse
3120-01-215-256211638 INTERCHANGEABLE
Bushing,sleeve
Leslie Controls, Inc. Dba Leslie Controls Inc
4140-01-305-9101 INTERCHANGEABLE
Housing,centrifugal Fan
Cross-Reference Index
Part NumberManufacturer
11638 Calhoun Mfg Co (USA)
PGF11638 Vme Americas Inc Sub of Vme Group N V (USA)
PGF11638 Dana Off Highway Products, Llc (USA)
Related Parts
9540-00-145-5815INTERCHANGEABLE
ANGLE,STRUCTURAL
5940-00-177-7939INTERCHANGEABLE
TERMINAL,LUG
1163-3-8
5945-00-430-3576INTERCHANGEABLE
RELAY,UNDER FREQUENCY
20-050-5
5136-00-528-2298INTERCHANGEABLE
TAP,THREAD CUTTING
54761
5930-00-868-3022INTERCHANGEABLE
SWITCH,TOGGLE
4730-01-008-9644INTERCHANGEABLE
RESTRICTOR,FLUID FLOW
11638
5962-01-048-6860INTERCHANGEABLE
MICROCIRCUIT,LINEAR
LM117KSTEEL/883B
5950-01-090-5612INTERCHANGEABLE
TRANSFORMER,PULSE
3120-01-215-2562INTERCHANGEABLE
BUSHING,SLEEVE
11638
4140-01-305-9101INTERCHANGEABLE
HOUSING,CENTRIFUGAL FAN
8305-01-467-4552INTERCHANGEABLE
STYLE 116 FIBERGLAS

Frequently Asked Questions

What is NSN 2540-00-354-8752?

NSN 2540-00-354-8752 is a Cushion,seat,vehicular, manufactured by Calhoun Mfg Co, classified under FSC 2540 (No Item Name Available). Status: active.

What are the part numbers for NSN 2540-00-354-8752?

NSN 2540-00-354-8752 has 3 cross-referenced part numbers: 11638 (Calhoun Mfg Co), PGF11638 (Vme Americas Inc Sub of Vme Group N V), PGF11638 (Dana Off Highway Products, Llc).

What NSN replaces 2540-00-354-8752?

There are 11 known substitutes for 2540-00-354-8752: 9540-00-145-5815, 5940-00-177-7939, 5945-00-430-3576 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 11638?

Key specifications for 11638: Material: COTTON COVER; Color: BLACK; Spring: INCLUDED; Spring Type: COIL. 9 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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