The Igniter,spark,fuel, cataloged under National Stock Number 4520-00-312-2017, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Meggitt Troy Inc. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4520-00-312-2017 |
| Primary Part Number | G484055 |
| Item Name | Igniter,spark,fuel |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Meggitt Troy Inc |
| Status | CANCELLED |
| Length | 2.688 INCHES NOMINAL IN |
| Mounting Method | THREAD |
| Polarization Feature | INCLUDED |
| Diameter | 0.562 INCHES NOMINAL IN |
| Mounting Facility Thread Size | 0.688-18 |
| Depth | 1.250 INCHES NOMINAL IN |
| Width | 0.812 INCHES NOMINAL IN |
| Plug Design | STRAIGHT |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 7520367 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| G484055 PRIMARY | Meggitt Troy Inc (USA) |
| 7718093 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 560H1-3644 | Kurz & Root Generator Company, Llc (USA) |
| 7700170 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| G484055 | 5/9 Secondary reference Stewart-Warner Corporation |
| 10M654 | 5/9 Secondary reference Warwick Electronics Inc Pacific Mercury Div |
| M-1051 | 5/9 Secondary reference Mancraft Industries Inc |
| 2540003122017 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| G474942 | 5/9 Secondary reference Stewart-Warner Corporation |
| G474942 | 5/9 Secondary reference Meggitt Troy Inc |
NSN 4520-00-312-2017 is a Igniter,spark,fuel, manufactured by Meggitt Troy Inc, classified under FSC 4520, Space and Water Heating Equipment. Status: cancelled.
NSN 4520-00-312-2017 has 5 manufacturer part numbers on file: 7520367 (U S Army Tank Automotive Command Amsta-Im-Mm), G484055 (Meggitt Troy Inc), 7718093 (U S Army Tank Automotive Command Amsta-Im-Mm), 560H1-3644 (Kurz & Root Generator Company, Llc), 7700170 (U S Army Tank Automotive Command Amsta-Im-Mm).
5 possible matches (shared part number, not a government interchangeability claim): 2815-00-536-6974, 5977-00-538-6818, 5905-01-007-6279. Verify interchangeability with system specifications before substitution.
Key specifications for G484055: Length: 2.688 INCHES NOMINAL IN; Mounting Method: THREAD; Polarization Feature: INCLUDED; Diameter: 0.562 INCHES NOMINAL IN. 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.
NSN 4520-00-312-2017 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.