The Cup-Thrust, cataloged under National Stock Number 1680-00-604-0491, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) 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 | 1680-00-604-0491 |
| Primary Part Number | 544137 |
| Item Name | Cup-Thrust |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| General Characteristics Item Description | MATL CORROSION RESISTANT STEEL AMS5616,HEAT TREAT SPEC MIL-H-6875,HARDNESS R15N 78-81.5,DIM O.031 IN. LG BY 0.2694 IN. DIA,ONE HOLE 0.210 IN. DIA,ONE END CHAMFERED 45 DEG TO 0.175 IN. DIA ON OUTSIDE IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 1680-00-604-0491 is a Cup-Thrust, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-00-604-0491 has 2 manufacturer part numbers on file: 544137 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us), 544137 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
1 possible match (shared part number, not a government interchangeability claim): 5940-01-170-7315. Verify interchangeability with system specifications before substitution.
Key specifications for 544137: General Characteristics Item Description: MATL CORROSION RESISTANT STEEL AMS5616,HEAT TREAT SPEC MIL-H-6875,HARDNESS R15N 78-81.5,DIM O.031 IN. LG BY 0.2694 IN. DIA,ONE HOLE 0.210 IN. DIA,ONE END CHAMFERED 45 DEG TO 0.175 IN. DIA ON OUTSIDE 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.
NSN 1680-00-604-0491 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.