The Tool,removal,seal Weld, cataloged under National Stock Number 4410-01-033-6918, is classified within Federal Supply Class 4410 (Industrial Boilers) of the Furnace, Steam, Drying, Nuclear Reactors group. The manufacturer of record is Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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: Active.
| Parameter | Value |
|---|---|
| NSN | 4410-01-033-6918 |
| Primary Part Number | D-990-636-1RT-1 |
| Item Name | Tool,removal,seal Weld |
| FSC / FSG | 4410 / 44 — Industrial Boilers |
| Manufacturer | Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric |
| Status | ACTIVE |
| General Characteristics Item Description | SHIELD FOR REMOVING 3.625 IN. DIA HAND HOLE PLATES IN |
| 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 |
|---|---|
| D-990-636-1RT-1 PRIMARY | Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric (USA) |
| RT-1 | Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric (USA) |
| Reference | Meaning |
|---|---|
| D-990-636 | D/9 Drawing number reference only Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric |
| D990-636 PC RT- | C/1 Advisory reference — outside the item-of-supply concept Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric |
NSN 4410-01-033-6918 is a Tool,removal,seal Weld, manufactured by Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric, classified under FSC 4410, Industrial Boilers. Status: active.
NSN 4410-01-033-6918 has 2 manufacturer part numbers on file: D-990-636-1RT-1 (Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric), RT-1 (Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric).
5 possible matches (shared part number, not a government interchangeability claim): 6540-01-246-3801, 4930-01-333-0660, 8040-01-395-8926. Verify interchangeability with system specifications before substitution.
Key specifications for D-990-636-1RT-1: General Characteristics Item Description: SHIELD FOR REMOVING 3.625 IN. DIA HAND HOLE PLATES IN. 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.