The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-007-3261, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 18 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-007-3261 |
| Primary Part Number | GS550E3S10 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Extended Washer Thickness | 0.025 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN |
| Head Height | 0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM IN |
| Fastener Length | 0.5938 INCHES MINIMUM AND 0.6562 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 TY2 FED SPEC 1ST TREATMENT RESPONSE OR ASTM B633 ASSN STD 2ND TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.427 INCHES MINIMUM AND 0.447 INCHES MAXIMUM IN |
| Thread Length | 0.3594 INCHES MINIMUM AND 0.4530 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-S-8695 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6050 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | ROUND EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | CADMIUM AND CHROMATE OR ZINC OVERALL |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | SLOT |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 4037 OR STEEL COMP 8630 OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.365 INCHES MINIMUM AND 0.385 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 |
|---|---|
| GS550E3S10 PRIMARY | Northrop Grumman Systems Corporation (USA) |
NSN 5305-00-007-3261 is a Screw,cap,socket Head, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-007-3261 has 1 manufacturer part number on file: GS550E3S10 (Northrop Grumman Systems Corporation).
Key specifications for GS550E3S10: Extended Washer Thickness: 0.025 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN; Head Height: 0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM IN; Fastener Length: 0.5938 INCHES MINIMUM AND 0.6562 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416 TY2 FED SPEC 1ST TREATMENT RESPONSE OR ASTM B633 ASSN STD 2ND TREATMENT RESPONSE OVERALL. 18 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.