The Poppet, cataloged under National Stock Number 1660-01-040-5016, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-040-5016 |
| Item Name | Poppet |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Status | ACTIVE |
| General Characteristics Item Description | CRES BAR TYPE 440F PER AMS 5632,125 FINISH AA U.O.S.,HEAT TREATMENT TO RC 51 MIN PER AS6501,FILLET RADII 0.025/0.035 U.O.S.,0.052 IN. PORM 0.002 IN. THRU,0.250 IN. OD,0.015X45 CHAMFER,1.735 IN. LG,4-40 UNC-3A THRD P.D. .0939/.0958 PER MIL-S-7742 A |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 98D62-1 | 3/9 Design control — primary reference Sturm, Ruger & Company, Inc. |
| 98D62-1 | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell International |
| 98D62-1 | 5/9 Secondary reference Grimes Aerospace Company |
NSN 1660-01-040-5016 is a Poppet, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
Key specifications for 1660-01-040-5016: General Characteristics Item Description: CRES BAR TYPE 440F PER AMS 5632,125 FINISH AA U.O.S.,HEAT TREATMENT TO RC 51 MIN PER AS6501,FILLET RADII 0.025/0.035 U.O.S.,0.052 IN. PORM 0.002 IN. THRU,0.250 IN. OD,0.015X45 CHAMFER,1.735 IN. LG,4-40 UNC-3A THRD P.D. .0939/.0958 PER MIL-S-7742 A; End Item Identification: END ITEM APPLICATION E-3A ACFT A. 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 1660-01-040-5016 has DEMIL Code Q. 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.