The Insulation,thermal,special Purpo, cataloged under National Stock Number 5330-00-435-6257, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Arrowhead Products Corp. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-435-6257 |
| Primary Part Number | 40328-7 |
| Item Name | Insulation,thermal,special Purpo |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Arrowhead Products 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 |
| Part Number | Manufacturer |
|---|---|
| 40328-7 PRIMARY | Arrowhead Products Corp (USA) |
| Reference | Meaning |
|---|---|
| 216-76400-7 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 5330-00-435-6257 is a Insulation,thermal,special Purpo, manufactured by Arrowhead Products Corp, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-435-6257 has 1 manufacturer part number on file: 40328-7 (Arrowhead Products Corp).
2 possible matches (shared part number, not a government interchangeability claim): 5910-00-958-3022, 5330-01-035-9486. Verify interchangeability with system specifications before substitution.
Key specifications for 40328-7: Special Features: INNER AND OUTER SKIN. 0 specifications are documented in the U.S. Government catalog.
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.