The Screw,machine, cataloged under National Stock Number 5305-00-442-0837, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Defense Logistics Agency Dba Defense Supply Center Philadelphia. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-442-0837 |
| Primary Part Number | 00344 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Defense Logistics Agency Dba Defense Supply Center Philadelphia |
| Status | ACTIVE |
| Head Height | 0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN |
| Screw Surface Treatment | PASSIVATE |
| Fastener Length | 1.990 INCHES MINIMUM AND 2.010 INCHES MAXIMUM IN |
| Screw Material Document and Classification | AMS 5610 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Length | 1.219 INCHES MINIMUM AND 1.281 INCHES MAXIMUM IN |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Screw Material | STEEL COMP 416F |
| Internal Drive Style | SLOT |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Hole Quantity | 1 |
| Thread Series Designator | UNF |
| Head Hole Configuration Style | ROUND |
| Hole Diameter | 0.047 INCHES NOMINAL 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 |
|---|---|
| 00344 | Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA) |
| Reference | Meaning |
|---|---|
| 10-33903 | 5/9 Secondary reference Amphenol Corp Div Amphenol Aerospace Operations |
| 10-33903 | 5/9 Secondary reference Unison Industries Llc |
| 10-33903 | 3/9 Design control — primary reference Teledyne Industries Inc Teledyne Power Systems Div |
NSN 5305-00-442-0837 is a Screw,machine, manufactured by Defense Logistics Agency Dba Defense Supply Center Philadelphia, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-442-0837 has 1 manufacturer part number on file: 00344 (Defense Logistics Agency Dba Defense Supply Center Philadelphia).
Key specifications for 00344: Head Height: 0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN; Screw Surface Treatment: PASSIVATE; Fastener Length: 1.990 INCHES MINIMUM AND 2.010 INCHES MAXIMUM IN; Screw Material Document and Classification: AMS 5610 ASSN STD SINGLE MATERIAL RESPONSE. 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.