The Screw,machine, cataloged under National Stock Number 5305-00-487-4879, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Gtaa Llc Dba Gtaa Llc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-487-4879 |
| Primary Part Number | CB21-602 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Gtaa Llc Dba Gtaa Llc |
| Status | ACTIVE |
| Screw Surface Treatment | ANODIZE |
| Fastener Length | 0.250 INCHES NOMINAL IN |
| Screw Material Document and Classification | QQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE |
| Thread Length | 0.250 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Screw Material | ALUMINUM ALLOY 2024 |
| Minimum Tensile Strength | 62000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | SLOT |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 48 |
| Thread Series Designator | UNF |
| Head Diameter | 0.162 INCHES MINIMUM AND 0.177 INCHES MAXIMUM IN |
| 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 |
|---|---|
| CB21-602 PRIMARY | Gtaa Llc Dba Gtaa Llc (USA) |
| Reference | Meaning |
|---|---|
| 74560300110 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
| EAB1700 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-00-487-4879 is a Screw,machine, manufactured by Gtaa Llc Dba Gtaa Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-487-4879 has 1 manufacturer part number on file: CB21-602 (Gtaa Llc Dba Gtaa Llc).
Key specifications for CB21-602: Screw Surface Treatment: ANODIZE; Fastener Length: 0.250 INCHES NOMINAL IN; Screw Material Document and Classification: QQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE; Thread Length: 0.250 INCHES MINIMUM IN. 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.