The Cap Assembly, cataloged under National Stock Number 3433-01-100-9790, is classified within Federal Supply Class 3433 (Gas Welding, Heat Cutting, and Metalizing Equipment) of the Metalworking Machinery (continued) group. The manufacturer of record is Oerlikon Metco Us Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3433-01-100-9790 |
| Primary Part Number | 3M637 |
| Item Name | Cap Assembly |
| FSC / FSG | 3433 / 34 — Gas Welding, Heat Cutting, and Metalizing Equipment |
| Manufacturer | Oerlikon Metco Us Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3M637 PRIMARY | Oerlikon Metco Us Inc (USA) |
| Reference | Meaning |
|---|---|
| 3M637 | 5/9 Secondary reference Metco Inc Sub of the Perkin-Elmer Corp |
NSN 3433-01-100-9790 is a Cap Assembly, manufactured by Oerlikon Metco Us Inc, classified under FSC 3433, Gas Welding, Heat Cutting, and Metalizing Equipment. Status: active.
NSN 3433-01-100-9790 has 1 manufacturer part number on file: 3M637 (Oerlikon Metco Us Inc).
1 possible match (shared part number, not a government interchangeability claim): 6105-01-204-6637. Verify interchangeability with system specifications before substitution.
Key specifications for 3M637: End Item Identification: METCO MODEL 3M FLAME SPRAY GUN. 0 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.