The Intercooler,second Stage, cataloged under National Stock Number 3655-01-149-9962, is classified within Federal Supply Class 3655 (Gas Generating and Dispensing Systems, Fixed or Mobile) of the Special Industry Machinery group. The manufacturer of record is Young Touchstone Company Div Young Touchstone. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3655-01-149-9962 |
| Primary Part Number | F-504-EY-1P |
| Item Name | Intercooler,second Stage |
| FSC / FSG | 3655 / 36 — Gas Generating and Dispensing Systems, Fixed or Mobile |
| Manufacturer | Young Touchstone Company Div Young Touchstone |
| Status | ACTIVE |
| General Characteristics Item Description | LENGTH-36.50IN.; DIAMETER-6.25IN.; OPERATING PRESSURE-150 P.S.I.; TEST PRESSURE-250 P.S.I.; MAXIMUM OPERATING TEMP-350 DEG. F IN |
| 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 |
|---|---|
| F-504-EY-1P | Young Touchstone Company Div Young Touchstone (USA) |
| Reference | Meaning |
|---|---|
| D804-1605-17 | 3/2 Design control — primary reference U.S. Government activity |
| D801-1170 | 5/9 Secondary reference U.S. Government activity |
NSN 3655-01-149-9962 is a Intercooler,second Stage, manufactured by Young Touchstone Company Div Young Touchstone, classified under FSC 3655, Gas Generating and Dispensing Systems, Fixed or Mobile. Status: active.
NSN 3655-01-149-9962 has 1 manufacturer part number on file: F-504-EY-1P (Young Touchstone Company Div Young Touchstone).
Key specifications for F-504-EY-1P: General Characteristics Item Description: LENGTH-36.50IN.; DIAMETER-6.25IN.; OPERATING PRESSURE-150 P.S.I.; TEST PRESSURE-250 P.S.I.; MAXIMUM OPERATING TEMP-350 DEG. F IN; End Item Identification: 3655008807579. 1 specification is 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.