The Diaphragm,booster U, cataloged under National Stock Number 2910-01-121-5178, is classified within Federal Supply Class 2910 (Engine Fuel System Components, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Prestolite Electric Limited. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2910-01-121-5178 |
| Primary Part Number | 512822 |
| Item Name | Diaphragm,booster U |
| FSC / FSG | 2910 / 29 — Engine Fuel System Components, Nonaircraft |
| Manufacturer | Prestolite Electric Limited |
| 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 |
|---|---|
| 512822 | Prestolite Electric Limited (GBR) |
| Reference | Meaning |
|---|---|
| 512822 | 3/9 Design control — primary reference Lucas Cav |
NSN 2910-01-121-5178 is a Diaphragm,booster U, manufactured by Prestolite Electric Limited, classified under FSC 2910, Engine Fuel System Components, Nonaircraft. Status: active.
NSN 2910-01-121-5178 has 1 manufacturer part number on file: 512822 (Prestolite Electric Limited).
1 possible match (shared part number, not a government interchangeability claim): 6675-01-694-6799. Verify interchangeability with system specifications before substitution.
Key specifications for 512822: End Item Identification: 1940-01-218-9165. 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.