The Valve,air,emission Control, cataloged under National Stock Number 2990-01-686-4911, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Thales Sa. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-686-4911 |
| Primary Part Number | 91995929 |
| Item Name | Valve,air,emission Control |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Thales Sa |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 91995929 | Thales Sa (FRA) |
| 6005000288 | Texelis (FRA) |
| Reference | Meaning |
|---|---|
| PMF-100585 | 3/9 Design control — primary reference W. L. Gore & Associates, Inc. |
NSN 2990-01-686-4911 is a Valve,air,emission Control, manufactured by Thales Sa, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-686-4911 has 2 manufacturer part numbers on file: 91995929 (Thales Sa), 6005000288 (Texelis).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-696-6241. Verify interchangeability with system specifications before substitution.
Key specifications for 91995929: Special Features: ITEM COLOR IS BLACK, 16 MILLIMETERS, POLY VENT HIGH AIRFL MM; Part Name Assigned by Controlling Agency: VALVE,AIR,EMISSION CONTROL; End Item Identification: COUNTERMEASURE SET. 0 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.