The Baffle,diaphragm, cataloged under National Stock Number 2990-00-017-8329, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Brinkley Technology Group Llc Dba Hercules Manufacturing. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 2990-00-017-8329 |
| Primary Part Number | 377018 |
| Item Name | Baffle,diaphragm |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Brinkley Technology Group Llc Dba Hercules Manufacturing |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY SAE AA5052-H34 |
| 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 |
|---|---|
| 377018 | Brinkley Technology Group Llc Dba Hercules Manufacturing (USA) |
| ERB451 | American Terra Vehicles Inc (USA) |
| Reference | Meaning |
|---|---|
| 377018 | 5/9 Secondary reference Hercules Engine Co Inc |
| ERB451 | 5/9 Secondary reference Deco-Grand Inc Sub of Grand Machining Co |
| 13206E0629 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2990-00-017-8329 is a Baffle,diaphragm, manufactured by Brinkley Technology Group Llc Dba Hercules Manufacturing, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-00-017-8329 has 2 manufacturer part numbers on file: 377018 (Brinkley Technology Group Llc Dba Hercules Manufacturing), ERB451 (American Terra Vehicles Inc).
2 possible matches (shared part number, not a government interchangeability claim): 4710-00-771-7372, 3040-01-312-9189. Verify interchangeability with system specifications before substitution.
Key specifications for 377018: General Characteristics Item Description: ALUMINUM ALLOY SAE AA5052-H34; End Item Identification: 28059523927; End Item Identification: 28058725972; End Item Identification: 28058725971. 1 specification is 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.