The Screw,machine, cataloged under National Stock Number 5305-01-231-5899, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Olympus America Inc. Government technical data includes 15 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-231-5899 |
| Primary Part Number | CS16S |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Olympus America Inc |
| Status | ACTIVE |
| Head Height | 0.049 INCHES NOMINAL IN |
| Screw Surface Treatment | PASSIVATE |
| Fastener Length | 0.157 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN |
| Screw Material Document and Classification | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Length | 0.129 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.073 INCHES IN |
| Head Style | FILLISTER |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL COMP 303 |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 72 |
| Thread Series Designator | UNF |
| Head Diameter | 0.111 INCHES NOMINAL IN |
| Screw Surface Treatment Document and Classification | QQ-P-35 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 |
|---|---|
| CS16S PRIMARY | Olympus America Inc (USA) |
| Reference | Meaning |
|---|---|
| CS16S | 3/9 Design control — primary reference Gyrus Acmi L.p. |
NSN 5305-01-231-5899 is a Screw,machine, manufactured by Olympus America Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-231-5899 has 1 manufacturer part number on file: CS16S (Olympus America Inc).
Key specifications for CS16S: Head Height: 0.049 INCHES NOMINAL IN; Screw Surface Treatment: PASSIVATE; Fastener Length: 0.157 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN; Screw Material Document and Classification: ASTM A582 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.