PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S1278Cushion,seat,vehicular

The Wise Company Llc · NSN 2540-00-188-9633 · FSC 2540 · No Item Name Available
Verified by PartsTable
NSN 2540-00-188-9633 — this item is cataloged by the U.S. Government under National Stock Number 2540-00-188-9633. Primary manufacturer part number: S1278.
Features
  • Cushion,seat,vehicular — FSC 2540
  • Material: WOOD FRAME
  • Material: PLASTIC COVER
  • Spring: NOT INCLUDED
  • Overall Thickness: 4.000 INCHES NOMINAL IN
  • Color: BLACK
  • Material: RUBBER FOAM PADDING
  • 3 verified cross-references
Applications
  • Applications requiring Wood Frame construction
General Description

The Cushion,seat,vehicular, cataloged under National Stock Number 2540-00-188-9633, is classified within Federal Supply Class 2540 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is The Wise Company Llc. Government technical data includes 6 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN2540-00-188-9633
Primary Part NumberS1278
Item NameCushion,seat,vehicular
FSC / FSG2540 / 25 — No Item Name Available
ManufacturerThe Wise Company Llc
StatusACTIVE
MaterialWOOD FRAME
MaterialPLASTIC COVER
SpringNOT INCLUDED
Overall Thickness4.000 INCHES NOMINAL IN
ColorBLACK
MaterialRUBBER FOAM PADDING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 3
5950-00-702-19777817 INTERCHANGEABLE
Transformer,power
Staco Energy Products Co Dba Staco Energy Products Co
5962-01-057-7056G390460-1 INTERCHANGEABLE
Microcircuit,memory
L3harris Technologies, Inc Div Space & Airborne Systems
5930-01-072-5318 INTERCHANGEABLE
Switch,flow
Cross-Reference Index
Part NumberManufacturer
S1278 PRIMARY The Wise Company Llc (USA)
S1278 Freedman Seating Company (USA)
CMP27-14 Pettibone Llc (USA)
Related Parts
5950-00-702-1977INTERCHANGEABLE
TRANSFORMER,POWER
7817
5962-01-057-7056INTERCHANGEABLE
MICROCIRCUIT,MEMORY
G390460-1
5930-01-072-5318INTERCHANGEABLE
SWITCH,FLOW

Frequently Asked Questions

What is NSN 2540-00-188-9633?

NSN 2540-00-188-9633 is a Cushion,seat,vehicular, manufactured by The Wise Company Llc, classified under FSC 2540 (No Item Name Available). Status: active.

What are the part numbers for NSN 2540-00-188-9633?

NSN 2540-00-188-9633 has 3 cross-referenced part numbers: S1278 (The Wise Company Llc), S1278 (Freedman Seating Company), CMP27-14 (Pettibone Llc).

What NSN replaces 2540-00-188-9633?

There are 3 known substitutes for 2540-00-188-9633: 5950-00-702-1977, 5962-01-057-7056, 5930-01-072-5318. Verify interchangeability with system specifications before substitution.

What are the specifications of S1278?

Key specifications for S1278: Material: WOOD FRAME; Material: PLASTIC COVER; Spring: NOT INCLUDED; Overall Thickness: 4.000 INCHES NOMINAL IN. 8 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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