The Screw,machine, cataloged under National Stock Number 5305-01-520-9404, 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 15 specifications, cited from the U.S. Government catalog. The record lists 11 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-520-9404 |
| Primary Part Number | NAS5312E4-14 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Pilgrim Screw Corporation Dba Pilgrim Aerospace Fasteners |
| Status | ACTIVE |
| Screw Surface Treatment | PASSIVATE |
| Fastener Length | 0.875 INCHES NOMINAL IN |
| Thread Length | 0.769 INCHES NOMINAL IN |
| Criticality Code Justification | AGAV |
| Spline Major Diameter | 0.220 INCHES MINIMUM AND 0.223 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Screw Material | IRON ALLOY 660 |
| Minimum Tensile Strength | 5820 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | TORX |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| NAS5312E4-14 | Pilgrim Screw Corporation Dba Pilgrim Aerospace Fasteners (USA) |
| NAS5312E4-14 | B & B Specialties Inc (USA) |
| NAS5312E4-14 | Saturn Fasteners Inc (USA) |
| NAS5312E4-14 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| NAS5312E4-14 | Pilgrim Screw Corp Dba Pilgrim Aerospace Fasteners Div Arizona (USA) |
| NAS5312E4-14 | Heartland Precision Fasteners Inc (USA) |
| NAS5312E4-14 | Lfc Industries, Inc. (USA) |
| NAS5312E4-14 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| NAS5312E4-14 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| NAS5312E4-14 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| NAS5312E4-14 | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| NAS5312E4-14 | 5/2 Secondary reference U.S. Government activity |
| NAS5312E4-14 | 5/9 Secondary reference U.S. Government activity |
| NAS5312E4-14 | 3/2 Design control — primary reference U.S. Government activity |
| 120-264E4-14 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-520-9404 is a Screw,machine, manufactured by Pilgrim Screw Corporation Dba Pilgrim Aerospace Fasteners, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-520-9404 has 11 manufacturer part numbers on file: NAS5312E4-14 (Pilgrim Screw Corporation Dba Pilgrim Aerospace Fasteners), NAS5312E4-14 (B & B Specialties Inc), NAS5312E4-14 (Saturn Fasteners Inc), NAS5312E4-14 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), NAS5312E4-14 (Pilgrim Screw Corp Dba Pilgrim Aerospace Fasteners Div Arizona) and 6 more.
Key specifications for NAS5312E4-14: Screw Surface Treatment: PASSIVATE; Fastener Length: 0.875 INCHES NOMINAL IN; Thread Length: 0.769 INCHES NOMINAL IN; Criticality Code Justification: AGAV. 15 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.