The Mask,mechanical, cataloged under National Stock Number 6610-01-003-3987, is classified within Federal Supply Class 6610 (Flight Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Astronautics Corporation of America. 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. 3 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 | 6610-01-003-3987 |
| Primary Part Number | 113777 |
| Item Name | Mask,mechanical |
| FSC / FSG | 6610 / 66 — Flight Instruments |
| Manufacturer | Astronautics Corporation of America |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY,1100-1,QQ-A-250/1; OD 4.120 IN.; ID 3.160 IN. 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 |
| Part Number | Manufacturer |
|---|---|
| 113777 PRIMARY | Astronautics Corporation of America (USA) |
NSN 6610-01-003-3987 is a Mask,mechanical, manufactured by Astronautics Corporation of America, classified under FSC 6610, Flight Instruments. Status: active.
NSN 6610-01-003-3987 has 1 manufacturer part number on file: 113777 (Astronautics Corporation of America).
3 possible matches (shared part number, not a government interchangeability claim): 2910-01-246-0933, 6635-01-445-7445, 5999-01-621-7231. Verify interchangeability with system specifications before substitution.
Key specifications for 113777: General Characteristics Item Description: ALUMINUM ALLOY,1100-1,QQ-A-250/1; OD 4.120 IN.; ID 3.160 IN. IN; End Item Identification: A-7 CORSAIR II 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 6610-01-003-3987 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.