The Screw,machine, cataloged under National Stock Number 5305-01-159-5716, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-159-5716 |
| Primary Part Number | 9998-2901-306 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems |
| Status | ACTIVE |
| Fastener Length | 0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN |
| Screw Material Document and Classification | ASTM D4066-82 ASSN STD SINGLE MATERIAL RESPONSE |
| Extended Washer Diameter | 0.479 INCHES MINIMUM AND 0.489 INCHES MAXIMUM IN |
| Thread Length | 0.683 INCHES MINIMUM AND 0.693 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | ROUND EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Screw Material | PLASTIC POLYAMIDE NYLON |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 9998-2901-306 PRIMARY | Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems (USA) |
NSN 5305-01-159-5716 is a Screw,machine, manufactured by Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-159-5716 has 1 manufacturer part number on file: 9998-2901-306 (Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems).
Key specifications for 9998-2901-306: Fastener Length: 0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN; Screw Material Document and Classification: ASTM D4066-82 ASSN STD SINGLE MATERIAL RESPONSE; Extended Washer Diameter: 0.479 INCHES MINIMUM AND 0.489 INCHES MAXIMUM IN; Thread Length: 0.683 INCHES MINIMUM AND 0.693 INCHES MAXIMUM IN. 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.