The Screw,externally Relieved Body, cataloged under National Stock Number 5305-01-166-5955, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Donaldson Company, Inc.. Government technical data includes 22 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-166-5955 |
| Primary Part Number | P14-2854 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Donaldson Company, Inc. |
| Status | ACTIVE |
| Fourth Diameter From Head | 0.190 INCHES NOMINAL IN |
| Head Height | 0.150 INCHES NOMINAL IN |
| Fastener Length | 1.620 INCHES NOMINAL IN |
| Thread Length | 0.500 INCHES NOMINAL IN |
| First Diameter From Head | 0.440 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 0.430 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Distance From Largest Bearing Surface of Head to End of Third Diameter | 0.740 INCHES NOMINAL IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Second Diameter From Head | 0.320 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.060 INCHES NOMINAL IN |
| Externally Relieved Body Diameter Quantity | 4 |
| Surface Treatment | CADMIUM OR ZINC OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL OVERALL |
| Distance From Largest Bearing Surface of Head to End of Fourth Diameter | 0.970 INCHES NOMINAL IN |
| Third Diameter From Head | 0.375 INCHES NOMINAL IN |
| Thread Series Designator | UNF |
| Head Diameter | 0.620 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5305-01-166-5955 is a Screw,externally Relieved Body, manufactured by Donaldson Company, Inc., classified under FSC 5305, Screws. Status: active.
NSN 5305-01-166-5955 has 2 manufacturer part numbers on file: 12321624 (U S Army Tank Automotive Command Amsta-Im-Mm), P14-2854 (Donaldson Company, Inc.).
Key specifications for P14-2854: Fourth Diameter From Head: 0.190 INCHES NOMINAL IN; Head Height: 0.150 INCHES NOMINAL IN; Fastener Length: 1.620 INCHES NOMINAL IN; Thread Length: 0.500 INCHES NOMINAL IN. 22 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.