The Coil,ignition, cataloged under National Stock Number 2920-00-440-6331, is classified within Federal Supply Class 2920 (Engine Electrical System Components, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Trw Inc Replacement Parts Div. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 13 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 19 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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 | 2920-00-440-6331 |
| Primary Part Number | FF172 |
| Item Name | Coil,ignition |
| FSC / FSG | 2920 / 29 — Engine Electrical System Components, Nonaircraft |
| Manufacturer | Trw Inc Replacement Parts Div |
| Status | ACTIVE |
| High Voltage Terminal Quantity | 1 |
| Material Type | METALLIC ENCLOSURE |
| Low Voltage Terminal Quantity | 1 |
| Style Designator | BRACKET MOUNTED |
| Diameter | 2.187 INCHES NOMINAL IN |
| DC Primary Voltage Rating | 12.0 VOLTS NOMINAL |
| Height | 5.625 INCHES NOMINAL IN |
| Submersibility | NONSUBMERSIBLE |
| 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 |
|---|---|
| DG5 | Ford Motor Co of Canada Ltd (CAN) |
| B6A12029B | Engine Distributors, Inc. (USA) |
| FF172 PRIMARY | Trw Inc Replacement Parts Div (USA) |
| F500Z PRIMARY | Borgwarner Pds (anderson), L.l.c. (USA) |
| B6A12029B | Ford Motor Co General Parts Division (USA) |
| DG5 | New Holland N.v.nc. (USA) |
| FD471 | Standard Motor Products (USA) |
| B6A12029B | New Holland N.v.nc. (USA) |
| DG5 | Ford Motor Co General Parts Division (USA) |
| B6A12029B | Ford Motor Co of Canada Ltd (CAN) |
| CAH-4003-1 PRIMARY | Prestolite Electric Inc (USA) |
| F500 PRIMARY | Borgwarner Pds (anderson), L.l.c. (USA) |
| 881097 | Dana Off Highway Products, Llc (USA) |
| Reference | Meaning |
|---|---|
| BCA-12029-B | 5/9 Secondary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
| F500 | 5/9 Secondary reference General Motors Corp Delco Remy Div |
| DG5 | 5/9 Secondary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
| 881097 | 5/9 Secondary reference Clark Equipment Co |
| FF172 | 5/9 Secondary reference C E Niehoff & Co |
| F500Z | 5/9 Secondary reference General Motors Corp Delco Remy Div |
| BCA12029B | 5/9 Secondary reference Kaitlin Corp |
| DGE-45 | 5/9 Secondary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
| DOPF-12029B | 5/9 Secondary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
| BCA-12029-B | 5/9 Secondary reference Ford Motor Company |
| IC10 | 5/9 Secondary reference Echlin Inc |
| C3TF-12029A | 5/9 Secondary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
| CAH-4003-1 | 5/9 Secondary reference Prestolite Electric Inc |
| B6A12029B | 5/9 Secondary reference U.S. Government activity |
| B6A-12029-B | 5/9 Secondary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
| DOPF-12029B | 5/9 Secondary reference Ford Motor Company |
| B6A-12029-B | 5/9 Secondary reference Ford Motor Company |
| C3TF-12029A | 5/9 Secondary reference Ford Motor Company |
| DGE-45 | 5/9 Secondary reference Ford Motor Company |
NSN 2920-00-440-6331 is a Coil,ignition, manufactured by Trw Inc Replacement Parts Div, classified under FSC 2920, Engine Electrical System Components, Nonaircraft. Status: active.
NSN 2920-00-440-6331 has 13 manufacturer part numbers on file: DG5 (Ford Motor Co of Canada Ltd), B6A12029B (Engine Distributors, Inc.), FF172 (Trw Inc Replacement Parts Div), F500Z (Borgwarner Pds (anderson), L.l.c.), B6A12029B (Ford Motor Co General Parts Division) and 8 more.
6 possible matches (shared part number, not a government interchangeability claim): 3120-00-633-7982, 5999-00-757-1755, 2320-00-926-3700. Verify interchangeability with system specifications before substitution.
Key specifications for FF172: High Voltage Terminal Quantity: 1; Material Type: METALLIC ENCLOSURE; Low Voltage Terminal Quantity: 1; Style Designator: BRACKET MOUNTED. 8 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.