The Valve Assembly,drain, cataloged under National Stock Number 1660-00-513-4576, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. 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. 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 | 1660-00-513-4576 |
| Primary Part Number | 508307 |
| Item Name | Valve Assembly,drain |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| FSC Application Data | REFRIGERATION UNIT 504592,780837-505 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 508307 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
| A70B114-55 | Clary Corp Dba Clary Corp Div Clary Corporation (USA) |
NSN 1660-00-513-4576 is a Valve Assembly,drain, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-00-513-4576 has 2 manufacturer part numbers on file: 508307 (Hamilton Sundstrand Corporation Dba Collins Aerospace), A70B114-55 (Clary Corp Dba Clary Corp Div Clary Corporation).
1 possible match (shared part number, not a government interchangeability claim): 9150-01-459-2647. Verify interchangeability with system specifications before substitution.
Key specifications for 508307: FSC Application Data: REFRIGERATION UNIT 504592,780837-505; End Item Identification: F-104 AIRCRAFT. 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.
NSN 1660-00-513-4576 has DEMIL Code B. 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.