The Screw,machine, cataloged under National Stock Number 5305-01-311-9079, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Pilgrim Screw Corporation Dba Pilgrim Aerospace Fasteners. Government technical data includes 2 specifications, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-311-9079 |
| Primary Part Number | AN505C4-18 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Pilgrim Screw Corporation Dba Pilgrim Aerospace Fasteners |
| Status | ACTIVE |
| FSC Application Data | LGM030F |
| Screw Material | STEEL CORROSION RESISTING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| AN505C4-18 PRIMARY | Pilgrim Screw Corporation Dba Pilgrim Aerospace Fasteners (USA) |
| AN505C4-18 | Hardware Specialty Co. Inc. (USA) |
| Reference | Meaning |
|---|---|
| AN505C4-18 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| AN505C4-18 | 3/9 Design control — primary reference Power Control Devices, Inc. |
| AN505C4-18 | 5/9 Secondary reference Bulova Technologies L.l.c. Dba Environmental Systems & Svcs |
NSN 5305-01-311-9079 is a Screw,machine, manufactured by Pilgrim Screw Corporation Dba Pilgrim Aerospace Fasteners, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-311-9079 has 2 manufacturer part numbers on file: AN505C4-18 (Pilgrim Screw Corporation Dba Pilgrim Aerospace Fasteners), AN505C4-18 (Hardware Specialty Co. Inc.).
Key specifications for AN505C4-18: FSC Application Data: LGM030F; Screw Material: STEEL CORROSION RESISTING; End Item Identification: USED ON SAFETY CONTROL SWITCH. 2 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.
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.