The Screw,externally Relieved Body, cataloged under National Stock Number 5305-00-409-2994, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 11 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-409-2994 |
| Primary Part Number | 610899 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| Head Height | 0.035 INCHES MINIMUM AND 0.039 INCHES MAXIMUM IN |
| Fastener Length | 0.068 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN |
| Thread Length | 0.053 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN |
| Material Document and Classification | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.051 INCHES MINIMUM AND 0.054 INCHES MAXIMUM IN |
| Head Style | FLAT CHAMFER |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.015 INCHES MAXIMUM IN |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Material | STEEL COMP 303 OVERALL |
| Head Diameter | 0.016 INCHES MINIMUM AND 0.020 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 |
|---|---|
| 610899 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
NSN 5305-00-409-2994 is a Screw,externally Relieved Body, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-409-2994 has 1 manufacturer part number on file: 610899 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).
1 possible match (shared part number, not a government interchangeability claim): 6230-01-516-9420. Verify interchangeability with system specifications before substitution.
Key specifications for 610899: Head Height: 0.035 INCHES MINIMUM AND 0.039 INCHES MAXIMUM IN; Fastener Length: 0.068 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN; Thread Length: 0.053 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN; Material Document and Classification: ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 11 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.