The Ring,spring Tension, cataloged under National Stock Number 1680-00-102-4816, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Ontic Engineering & Manufacturing, Inc Dba Ontic Us. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 1680-00-102-4816 |
| Primary Part Number | 531680-1 |
| Item Name | Ring,spring Tension |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
| Status | ACTIVE |
| General Characteristics Item Description | USED ON C-5 DOOR ACTUATOR 38938, SCREW JACK ASSY 1680-00-024-6953; AF T.O. 9H2-5-223-3 |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 531680-1 PRIMARY | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| Reference | Meaning |
|---|---|
| 531680-1 | 5/9 Secondary reference Honeywell International Inc. Div Aerospace - Torrance |
| 531680-1 | 5/9 Secondary reference Moog Military Aircraft Llc |
NSN 1680-00-102-4816 is a Ring,spring Tension, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-00-102-4816 has 1 manufacturer part number on file: 531680-1 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us).
Key specifications for 531680-1: General Characteristics Item Description: USED ON C-5 DOOR ACTUATOR 38938, SCREW JACK ASSY 1680-00-024-6953; AF T.O. 9H2-5-223-3. 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 1680-00-102-4816 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.