The Seat,vehicular, cataloged under National Stock Number 2540-01-663-0646, is classified within Federal Supply Class 2540 (Vehicular Furniture and Accessories) of the Vehicular Equipment Components group. The manufacturer of record is Ussc Acquisition Corp. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Seat,vehicular |
| FSC / FSG | 2540 — Vehicular Furniture and Accessories (FSG 25) |
| Manufacturers | Ussc Acquisition Corp (CAGE 82TL6) |
| Parameter | Value |
|---|---|
| NSN | 2540-01-663-0646 |
| Primary Part Number | 3NN9-455NN09-1C |
| Item Name | Seat,vehicular |
| FSC / FSG | 2540 / 25 — Vehicular Furniture and Accessories |
| Manufacturer | Ussc Acquisition Corp |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 3NN9-455NN09-1C PRIMARY | Ussc Acquisition Corp (USA) |
| Reference | Meaning |
|---|---|
| 3NN9-455NN09-1C | 5/9 Secondary reference Ussc Group Inc Dba Jg Seating |
| 6655554-1 | D/9 Drawing number reference only U.S. Government activity |
| 3NN9-45XNN09-XX | D/9 Drawing number reference only Global Seating Systems Llc Div Global Seating Systems |
| 3NN9-45XNN09-1C | 5/9 Secondary reference Global Seating Systems Llc Div Global Seating Systems |
| 3NN9-455NN09-1C | 3/9 Design control — primary reference Global Seating Systems Llc Div Global Seating Systems |
NSN 2540-01-663-0646 is a Seat,vehicular, manufactured by Ussc Acquisition Corp, classified under FSC 2540, Vehicular Furniture and Accessories. Status: active.
NSN 2540-01-663-0646 has 1 manufacturer part number on file: 3NN9-455NN09-1C (Ussc Acquisition Corp).
3 possible matches (shared part number, not a government interchangeability claim): 5325-01-664-9786, 5325-01-664-9789, 5325-01-664-9801. Verify interchangeability with system specifications before substitution.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
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.