The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-379-1071, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Thales Uk Limited Secure Communications and Information Systems. Government technical data includes 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-379-1071 |
| Primary Part Number | 992977 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Thales Uk Limited Secure Communications and Information Systems |
| Status | ACTIVE |
| Width Across Flats | 2.02 MILLIMETERS MINIMUM AND 2.10 MILLIMETERS MAXIMUM MM |
| External Thread Tolerance Class | 6G G |
| Fastener Length | 11.65 MILLIMETERS MINIMUM AND 12.35 MILLIMETERS MAXIMUM MM |
| Thread Pitch in Millimeters | 0.5 |
| Thread Length | 12.0 MILLIMETERS MAXIMUM MM |
| Material Document and Classification | DIN 267, PART 11, A2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 3.0 MILLIMETERS MM |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | HEXAGON |
| Countersink Angle | 90.0 DEGREES MINIMUM AND 92.0 DEGREES MAXIMUM |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | M |
| Head Diameter | 5.7 MILLIMETERS MINIMUM AND 6.0 MILLIMETERS MAXIMUM MM |
| 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 |
|---|---|
| 992977 | Thales Uk Limited Secure Communications and Information Systems (GBR) |
| DIN7991-M3X12-A2 | Din Deutsches Institut Fur Normung Ev (DEU) |
| Reference | Meaning |
|---|---|
| DIN7991-M3X12-A2 | 3/9 Design control — primary reference Zelenda Machine and Tools Corp |
| 992977 | 5/9 Secondary reference Racal Communications Systems Ltd |
NSN 5305-01-379-1071 is a Screw,cap,socket Head, manufactured by Thales Uk Limited Secure Communications and Information Systems, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-379-1071 has 2 manufacturer part numbers on file: 992977 (Thales Uk Limited Secure Communications and Information Systems), DIN7991-M3X12-A2 (Din Deutsches Institut Fur Normung Ev).
Key specifications for 992977: Width Across Flats: 2.02 MILLIMETERS MINIMUM AND 2.10 MILLIMETERS MAXIMUM MM; External Thread Tolerance Class: 6G G; Fastener Length: 11.65 MILLIMETERS MINIMUM AND 12.35 MILLIMETERS MAXIMUM MM; Thread Pitch in Millimeters: 0.5. 14 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.