The Trim Ring, cataloged under National Stock Number 1240-01-702-7056, is classified within Federal Supply Class 1240 (Optical Sighting and Ranging Equipment) of the Fire Control Equipment group. The manufacturer of record is Sheltered Wings, Inc Dba Vortex Optics Div Vortex Optics. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1240-01-702-7056 |
| Primary Part Number | NPD-11581 |
| Item Name | Trim Ring |
| FSC / FSG | 1240 / 12 — Optical Sighting and Ranging Equipment |
| Manufacturer | Sheltered Wings, Inc Dba Vortex Optics Div Vortex Optics |
| Status | ACTIVE |
| 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 |
|---|---|
| NPD-11581 PRIMARY | Sheltered Wings, Inc Dba Vortex Optics Div Vortex Optics (USA) |
| Reference | Meaning |
|---|---|
| NPD-900004UK | D/9 Drawing number reference only Sheltered Wings, Inc Dba Vortex Optics Div Vortex Optics |
NSN 1240-01-702-7056 is a Trim Ring, manufactured by Sheltered Wings, Inc Dba Vortex Optics Div Vortex Optics, classified under FSC 1240, Optical Sighting and Ranging Equipment. Status: active.
NSN 1240-01-702-7056 has 1 manufacturer part number on file: NPD-11581 (Sheltered Wings, Inc Dba Vortex Optics Div Vortex Optics).
4 possible matches (shared part number, not a government interchangeability claim): 6650-01-702-8013, 1240-01-702-8017, 1240-01-702-8303. Verify interchangeability with system specifications before substitution.
Key specifications for NPD-11581: Part Name Assigned by Controlling Agency: TRIM RING, ELEANOR PILOT 1; End Item Identification: NSN: 1240017026802. 0 specifications are 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 1240-01-702-7056 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.