The Facepiece,breathing Equipment, cataloged under National Stock Number 4240-01-690-2397, 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 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 1 specification, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4240-01-690-2397 |
| Primary Part Number | 4212AS0291-0-AM |
| Item Name | Facepiece,breathing Equipment |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Additive Manufacturing CAGE and Part/model Number | CAGE: 30003 PN: 4212AS0291-0-AM |
| 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 |
|---|---|
| 4212AS0291-0-AM PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 4212AS0294 | D/9 Drawing number reference only Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 4240-01-690-2397 is a Facepiece,breathing Equipment, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
NSN 4240-01-690-2397 has 1 manufacturer part number on file: 4212AS0291-0-AM (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
2 possible matches (shared part number, not a government interchangeability claim): 4240-01-690-2398, 4240-01-690-2399. Verify interchangeability with system specifications before substitution.
Key specifications for 4212AS0291-0-AM: Additive Manufacturing CAGE and Part/model Number: CAGE: 30003 PN: 4212AS0291-0-AM; Special Features: THIS NSN CONTAINS ADDITIVE MANUFACTURED PARTS; Part Name Assigned by Controlling Agency: FACE MASK FRAME, SM; (DWG TITLE) GE ADDITIVE COMMUNITY FACE MASK, COLLECTION. 1 specification is 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.