The Outer Seal Fillet Tool, cataloged under National Stock Number 4470-00-504-3729, is classified within Federal Supply Class 4470 (Nuclear Reactors) of the Furnace, Steam, Drying, Nuclear Reactors group. The manufacturer of record is Allen Tool Phoenix, Inc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4470-00-504-3729 |
| Primary Part Number | 28C1263REVM |
| Item Name | Outer Seal Fillet Tool |
| FSC / FSG | 4470 / 44 — Nuclear Reactors |
| Manufacturer | Allen Tool Phoenix, Inc |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL F — Mutilate — Cut |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 28C1263REVM | Allen Tool Phoenix, Inc (USA) |
| Reference | Meaning |
|---|---|
| 28C1263 | 5/1 Secondary reference Allen Tool Phoenix, Inc |
| 28C1263REVP | 3/1 Design control — primary reference Allen Tool Phoenix, Inc |
NSN 4470-00-504-3729 is a Outer Seal Fillet Tool, manufactured by Allen Tool Phoenix, Inc, classified under FSC 4470, Nuclear Reactors. Status: active.
NSN 4470-00-504-3729 has 1 manufacturer part number on file: 28C1263REVM (Allen Tool Phoenix, Inc).
Key specifications for 28C1263REVM: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.. 2 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 4470-00-504-3729 has DEMIL Code F. Demilitarization may be required before disposal or transfer to non-military entities.
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.