The Filter,particulate, cataloged under National Stock Number 4240-01-680-0135, is classified within Federal Supply Class 4240 (Safety and Rescue Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Swagelok Co. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Filter,particulate |
| FSC / FSG | 4240 — Safety and Rescue Equipment (FSG 42) |
| Manufacturers | Swagelok Co (CAGE 3T9T9); Taylor Investments Llc (CAGE 8BGY9) |
| Parameter | Value |
|---|---|
| NSN | 4240-01-680-0135 |
| Primary Part Number | SS-2TF4-15 |
| Item Name | Filter,particulate |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Manufacturer | Swagelok Co |
| 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 |
|---|---|
| SS-2TF4-15 PRIMARY | Swagelok Co (USA) |
| 29-43753-04-007 | Taylor Investments Llc (USA) |
| Reference | Meaning |
|---|---|
| 29-43753-04 ITEM 6 | C/1 Advisory reference — outside the item-of-supply concept Huntington Mechanical Laboratories, Inc. |
| 29-43753-04-007 | 3/9 Design control — primary reference Huntington Mechanical Laboratories, Inc. |
NSN 4240-01-680-0135 is a Filter,particulate, manufactured by Swagelok Co, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
NSN 4240-01-680-0135 has 2 manufacturer part numbers on file: SS-2TF4-15 (Swagelok Co), 29-43753-04-007 (Taylor Investments Llc).
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.