PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21029Seat,vehicular

Tenneco Inc · NSN 2540-00-304-9463 · FSC 2540 · No Item Name Available
Verified by PartsTable
NSN 2540-00-304-9463 — this item is cataloged by the U.S. Government under National Stock Number 2540-00-304-9463. Primary manufacturer part number: 21029.
Features
  • Seat,vehicular — FSC 2540
  • Material: STEEL
  • Foldability: NONFOLDABLE
  • Design Type: PARTIAL
  • Adjustment Type: HORIZONTAL AND VERTICAL
  • Mounting Type: TRACK W/TRACK
  • Mounting Adjustability: ADJUSTABLE
  • Adjustability: ADJUSTABLE
Applications
  • Applications requiring Steel construction
General Description

The Seat,vehicular, cataloged under National Stock Number 2540-00-304-9463, is classified within Federal Supply Class 2540 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Tenneco Inc. Government technical data includes 13 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN2540-00-304-9463
Primary Part Number21029
Item NameSeat,vehicular
FSC / FSG2540 / 25 — No Item Name Available
ManufacturerTenneco Inc
StatusACTIVE
MaterialSTEEL
FoldabilityNONFOLDABLE
Design TypePARTIAL
Adjustment TypeHORIZONTAL AND VERTICAL
Mounting TypeTRACK W/TRACK
Mounting AdjustabilityADJUSTABLE
AdjustabilityADJUSTABLE
BackrestINCLUDED
Seating Capacity1
Seat TypePADDED/COVERED CONTOUR
Removability FeatureINCLUDED
Contoured FeatureNOT INCLUDED
ArmrestNOT INCLUDED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 6
5120-00-057-6283 INTERCHANGEABLE
Pliers
2835-00-654-676221029 INTERCHANGEABLE
Adapter Assy,alternator
Alamo Aircraft, Ltd.
5330-00-779-5747 INTERCHANGEABLE
Gasket
5905-00-988-1559210-29 INTERCHANGEABLE
Resistor,variable,wire Wound,non
Keysight Technologies Inc
3040-01-051-3606226722 INTERCHANGEABLE
Disc,brake
Allied Systems Company Dba Allied Systems Co
4720-01-165-090321029 INTERCHANGEABLE
Hose,preformed
Gates Corporation
Cross-Reference Index
Part NumberManufacturer
1755724 Naval Ship Systems Command (USA)
21029 PRIMARY Tenneco Inc (USA)
1755724 Naval Sea Systems Command (USA)
Related Parts
5120-00-057-6283INTERCHANGEABLE
PLIERS
2835-00-654-6762INTERCHANGEABLE
ADAPTER ASSY,ALTERNATOR
21029
5330-00-779-5747INTERCHANGEABLE
GASKET
5905-00-988-1559INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
210-29
3040-01-051-3606INTERCHANGEABLE
DISC,BRAKE
226722
4720-01-165-0903INTERCHANGEABLE
HOSE,PREFORMED
21029

Frequently Asked Questions

What is NSN 2540-00-304-9463?

NSN 2540-00-304-9463 is a Seat,vehicular, manufactured by Tenneco Inc, classified under FSC 2540 (No Item Name Available). Status: active.

What are the part numbers for NSN 2540-00-304-9463?

NSN 2540-00-304-9463 has 3 cross-referenced part numbers: 1755724 (Naval Ship Systems Command), 21029 (Tenneco Inc), 1755724 (Naval Sea Systems Command).

What NSN replaces 2540-00-304-9463?

There are 6 known substitutes for 2540-00-304-9463: 5120-00-057-6283, 2835-00-654-6762, 5330-00-779-5747 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21029?

Key specifications for 21029: Material: STEEL; Foldability: NONFOLDABLE; Design Type: PARTIAL; Adjustment Type: HORIZONTAL AND VERTICAL. 14 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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