The Screw,machine, cataloged under National Stock Number 5305-00-956-9529, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is International Business Machines Corp Parts Order Center Dept E - 54. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-956-9529 |
| Primary Part Number | 186399 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | International Business Machines Corp Parts Order Center Dept E - 54 |
| Status | ACTIVE |
| Head Height | 0.041 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN |
| Screw Surface Treatment | ZINC |
| Fastener Length | 0.156 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN |
| Screw Material Document and Classification | ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Length | 0.120 INCHES MINIMUM AND 0.151 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.086 INCHES IN |
| Head Style | UNDERCUT PAN NO. 2 |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL COMP 1010 |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 56 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.171 INCHES MINIMUM AND 0.181 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | QQ-Z-325,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE |
| 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 |
|---|---|
| 186399 PRIMARY | International Business Machines Corp Parts Order Center Dept E - 54 (USA) |
| 10167838 PRIMARY | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| 186399 | 5/9 Secondary reference International Business Machines Corporation Dba IBM |
NSN 5305-00-956-9529 is a Screw,machine, manufactured by International Business Machines Corp Parts Order Center Dept E - 54, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-956-9529 has 2 manufacturer part numbers on file: 186399 (International Business Machines Corp Parts Order Center Dept E - 54), 10167838 (Us Army Aviation and Missile Command).
Key specifications for 186399: Head Height: 0.041 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN; Screw Surface Treatment: ZINC; Fastener Length: 0.156 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN; Screw Material Document and Classification: ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE. 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.