The Screw,shoulder, cataloged under National Stock Number 5305-01-070-5608, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Telemechanics Inc. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-070-5608 |
| Primary Part Number | 401909 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Telemechanics Inc |
| Status | ACTIVE |
| Extended Washer Thickness | 0.035 INCHES NOMINAL IN |
| Head Height | 0.160 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | FILLISTER EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | NICKEL OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.406 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 |
|---|---|
| 401909 PRIMARY | Telemechanics Inc (USA) |
| Reference | Meaning |
|---|---|
| 401909 | 5/9 Secondary reference American Telephone and Telegraph Co |
NSN 5305-01-070-5608 is a Screw,shoulder, manufactured by Telemechanics Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-070-5608 has 1 manufacturer part number on file: 401909 (Telemechanics Inc).
3 possible matches (shared part number, not a government interchangeability claim): 5950-01-270-9584, 1710-01-494-0366, 5998-01-624-7228. Verify interchangeability with system specifications before substitution.
Key specifications for 401909: Extended Washer Thickness: 0.035 INCHES NOMINAL IN; Head Height: 0.160 INCHES NOMINAL IN; Nominal Thread Diameter: 0.164 INCHES IN; Head Style: FILLISTER EXTENDED WASHER. 12 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.