PartsTable TECHNICAL DATA SHEET
NSN 2540-01-170-2500Government record, cited

Frame, Seat Cushion2540-01-170-2500

NSN 2540-01-170-2500 · NIIN 011702500 · Part number 1.1773
Isringhausen, Inc. · FSC 2540 — Vehicular Furniture and Accessories · FSG 25 — Vehicular Equipment Components · CAGE 62226
Government record, cited
NSN 2540-01-170-2500 — this item is cataloged by the U.S. Government under National Stock Number 2540-01-170-2500. Manufacturer of record part number: 1.1773.
Also searched as  2540-01-170-2500 · 2540011702500 · NIIN 011702500 · 01-170-2500 · FSC 2540 Vehicular Furniture and Accessories · CAGE 62226 · 1.1773 · 1.1973
Nearby stock numbers  ·
Features
  • Frame,seat Cushion — FSC 2540
  • General Characteristics Item Description: PART OF SEAT NO. 48R18
  • 2 manufacturer part numbers on file
  • Manufacturer of record: Isringhausen, Inc.
Identification
  • NSN: 2540-01-170-2500
  • NIIN: 011702500
  • FSC: 2540 — Vehicular Furniture and Accessories
  • FSG: 25 — Vehicular Equipment Components
  • Primary part number: 1.1773
  • Manufacturer: Isringhausen, Inc.
General Description

The Frame,seat Cushion, cataloged under National Stock Number 2540-01-170-2500, is classified within Federal Supply Class 2540 (Vehicular Furniture and Accessories) of the Vehicular Equipment Components group. The manufacturer of record is Isringhausen, Inc.. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN2540-01-170-2500
Primary Part Number1.1773
Item NameFrame,seat Cushion
FSC / FSG2540 / 25 — Vehicular Furniture and Accessories
ManufacturerIsringhausen, Inc.
StatusACTIVE
General Characteristics Item DescriptionPART OF SEAT NO. 48R18
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardPossible hazard — SDS may be required (DLA HMIC P)
Criticality CodeX
Unit of IssueEA
⇄ Related Items 5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-223-0590 POSSIBLE MATCH
VALVE ASSEMBLY,MANIFOLD
Possible match (shared part number)
3040-01-613-149311973 POSSIBLE MATCH
HUB,BODY
Possible match (shared part number)Nexen Group Inc.
5120-01-654-1846 POSSIBLE MATCH
RATCHET HEAD,SOCKET WRENCH HANDL
Possible match (shared part number)
4810-01-669-6231 POSSIBLE MATCH
PLATE,SPRING CARTRIDGE,ACTUATOR
Possible match (shared part number)
4320-01-675-443811973 POSSIBLE MATCH
PARTS KIT,ROTARY PUMP
Possible match (shared part number)Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
Cross-Reference Index
Part NumberManufacturer
1.1973 Isringhausen Gmbh & Co. Kg (DEU)
1.1773 PRIMARY Isringhausen, Inc. (USA)
Related Parts
4820-01-223-0590POSSIBLE MATCH
VALVE ASSEMBLY,MANIFOLD
3040-01-613-1493POSSIBLE MATCH
HUB,BODY
11973
5120-01-654-1846POSSIBLE MATCH
RATCHET HEAD,SOCKET WRENCH HANDL
4810-01-669-6231POSSIBLE MATCH
PLATE,SPRING CARTRIDGE,ACTUATOR
4320-01-675-4438POSSIBLE MATCH
PARTS KIT,ROTARY PUMP
11973

Frequently Asked Questions

What is NSN 2540-01-170-2500?

NSN 2540-01-170-2500 is a Frame,seat Cushion, manufactured by Isringhausen, Inc., classified under FSC 2540, Vehicular Furniture and Accessories. Status: active.

What part numbers are listed for NSN 2540-01-170-2500?

NSN 2540-01-170-2500 has 2 manufacturer part numbers on file: 1.1973 (Isringhausen Gmbh & Co. Kg), 1.1773 (Isringhausen, Inc.).

What NSN replaces 2540-01-170-2500?

5 possible matches (shared part number, not a government interchangeability claim): 4820-01-223-0590, 3040-01-613-1493, 5120-01-654-1846. Verify interchangeability with system specifications before substitution.

What are the specifications of 1.1773?

Key specifications for 1.1773: General Characteristics Item Description: PART OF SEAT NO. 48R18; End Item Identification: 3810-01-145-8288. 1 specification is documented in the U.S. Government catalog.

Is NSN 2540-01-170-2500 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.
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